subject:(Engine combustion)

1. Sharada Prasad. Study on hybrid electric vehicle through innovative design and simulation compatible to mysore urban Karnataka state india;.

Degree: Electrical, 2015, Jain University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/45694

►

This thesis is an attempt and approach for designing developing and analyzing parallel hybrid electric vehicle equipped with one internal combustion engine one electric motor… (more)

Subjects/Keywords: Combustion Engine; Electrical

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Prasad, S. (2015). Study on hybrid electric vehicle through innovative design and simulation compatible to mysore urban Karnataka state india;. (Thesis). Jain University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/45694

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Prasad, Sharada. “Study on hybrid electric vehicle through innovative design and simulation compatible to mysore urban Karnataka state india;.” 2015. Thesis, Jain University. Accessed April 14, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/45694.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Prasad, Sharada. “Study on hybrid electric vehicle through innovative design and simulation compatible to mysore urban Karnataka state india;.” 2015. Web. 14 Apr 2021.

Vancouver:

Prasad S. Study on hybrid electric vehicle through innovative design and simulation compatible to mysore urban Karnataka state india;. [Internet] [Thesis]. Jain University; 2015. [cited 2021 Apr 14]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/45694.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Prasad S. Study on hybrid electric vehicle through innovative design and simulation compatible to mysore urban Karnataka state india;. [Thesis]. Jain University; 2015. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/45694

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

2. Yohan, Muntimadugu. Investigations on lean combustion in a petrol engine.

Degree: Mechanical Engineering, 2013, Jawaharlal Nehru Technological University, Anantapuram

URL: http://shodhganga.inflibnet.ac.in/handle/10603/12229

►

Lean operation of spark ignition (SI) automotive engines offers attractive performance incentives. Lowered combustion temperatures inhibit NOx, pollutant formation while reduced manifold throttling minimizes pumping… (more)

▼

Lean operation of spark ignition (SI) automotive engines offers attractive performance incentives. Lowered combustion temperatures inhibit NOx, pollutant formation while reduced manifold throttling minimizes pumping losses, leading to higher efficiency. These benefits are offset by the reduced combustion speed of lean mixtures, which can lead to high cycle-to-cycle variation and unacceptable engine behavior characteristics. Hydrogen-enhancement can suppress the undesirable consequences of lean operation by accelerating the combustion process, thereby extending the quotlean limit.quot Hydrogen can be produced onboard the vehicle with a plasmatron fuel reformer device. newlineIn this work, research efforts made in three different phases with the objective of improving the fuel economy of and reducing exhaust emissions from conventional, carbureted, two-stroke spark ignition (SI) engines, which are widely employed in two-wheel transportation in India. A review concerning the existing two-stroke engine technology for this application is included. In the first phase, a new scavenging system was developed and tested to reduce the loss of fresh charge through the exhaust port. In the second phase, the following measures are carried out to improve the combustion process: (i) using an in-cylinder catalyst, such as copper, chromium, and nickel, in the form of coating; (ii) providing moderate thermal insulation in the combustion chamber, either by newlinedepositing thin ceramic material or by metal inserts (iii) employing high-octane fuel, such as methanol, ethanol, eucalyptus oil, and orange oil, as a blending agent with gasoline. newlineBased on the effectiveness of the above measures, an optimized design was developed in the final phase to achieve improved performance. Test results indicate that with an optimized two-stroke SI engine, the maximum percentage improvement in brake thermal efficiency is about 32%, together with a reduction of 3500 ppm in hydrocarbons (HC) and 2.9% by volume of carbon monoxide (CO) emissions over the normal engine (at

References p. 164-187, Conclusion p. 158-163

Advisors/Committee Members: Reddy, K Vijaya Kumar.

Subjects/Keywords: Petrol engine; Lean combustion

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Yohan, M. (2013). Investigations on lean combustion in a petrol engine. (Thesis). Jawaharlal Nehru Technological University, Anantapuram. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/12229

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Yohan, Muntimadugu. “Investigations on lean combustion in a petrol engine.” 2013. Thesis, Jawaharlal Nehru Technological University, Anantapuram. Accessed April 14, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/12229.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Yohan, Muntimadugu. “Investigations on lean combustion in a petrol engine.” 2013. Web. 14 Apr 2021.

Vancouver:

Yohan M. Investigations on lean combustion in a petrol engine. [Internet] [Thesis]. Jawaharlal Nehru Technological University, Anantapuram; 2013. [cited 2021 Apr 14]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/12229.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Yohan M. Investigations on lean combustion in a petrol engine. [Thesis]. Jawaharlal Nehru Technological University, Anantapuram; 2013. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/12229

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

3. Periyasamy S. Investigation of combustion chamber profile induced thermal performance and vibration in diesel engine;.

Degree: Combustion chamber profile induced thermal performance and vibration in Diesel engine, 2014, Anna University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/17400

►

The function of an engine is to produce mechanical power. When newlinethe fuel is burnt, heat is released. This heat energy is converted into useful… (more)

▼

The function of an engine is to produce mechanical power. When newlinethe fuel is burnt, heat is released. This heat energy is converted into useful newlinework. The details of the engine design are varying significantly over the size newlineof diesel engine. In particular, different combustion chamber geometries and newlinefuel-injection characteristics are required to deal effectively with a major newlinediesel engine design problem, achieving sufficiently rapid fuel-air mixing newlinerates to complete the fuel-burning process in the time available. A wide newlinevariety of inlet port geometries, cylinder head and piston shapes, and fuelinjection newlinepatterns are used to accomplish this over the size of diesel engine. newlineCombustion chamber profile changes are considered technologically newlineimportant because of their ability to further increase in diesel engine working temperatures and reduce cooling requirements, thus achieving higher engine newlineefficiency, lower emission and increased performance. newlineThe vibration of engine also depends on the combustion newlinephenomena and then the piston profile. The force acting on piston is varying newlinedepends on the piston profile area for the same pressure inside the cylinder. newlineBy this way combustion chamber profile otherwise the piston crown profile is newlinevery important to get a favourable performance in terms of thermal and newlinevibration aspects. The combination of thermal performance, simulation of incylinder newlineflow and vibration data are not available for use. A new design newlineapproach adapted for compromising the thermal performance and vibration behaviour of the engine. Four different piston profiles were selected newlinefor the experimental work as well as the simulation work. All pistons were newlinefitted in engine and the performance parameters along with emission newlineparameter were recorded. The specific fuel consumption, thermal efficiency, newlinemechanical efficiency and NOx were obtained from the experiment. At the newlinesame time the vibration signal was collected and stored in the computer. newline

Appendix p.153-154, References p.155-174.

Advisors/Committee Members: Alwarsamy T.

Subjects/Keywords: Combustion chamber; Diesel engine; Vibration

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

S, P. (2014). Investigation of combustion chamber profile induced thermal performance and vibration in diesel engine;. (Thesis). Anna University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/17400

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

S, Periyasamy. “Investigation of combustion chamber profile induced thermal performance and vibration in diesel engine;.” 2014. Thesis, Anna University. Accessed April 14, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/17400.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

S, Periyasamy. “Investigation of combustion chamber profile induced thermal performance and vibration in diesel engine;.” 2014. Web. 14 Apr 2021.

Vancouver:

S P. Investigation of combustion chamber profile induced thermal performance and vibration in diesel engine;. [Internet] [Thesis]. Anna University; 2014. [cited 2021 Apr 14]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/17400.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

S P. Investigation of combustion chamber profile induced thermal performance and vibration in diesel engine;. [Thesis]. Anna University; 2014. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/17400

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

4. Appa Rao K. Experimental investigation for adopting hcci combustion in a diesel engine.

Degree: Mechanical Engineering, 2013, Jawaharlal Nehru Technological University, Anantapuram

URL: http://shodhganga.inflibnet.ac.in/handle/10603/9763

►

At present diesel engines are performing well and meeting existing emission norms. But to meet future emission norms alternative combustion concept may be useful. Homogeneous… (more)

▼

At present diesel engines are performing well and meeting existing emission norms. But to meet future emission norms alternative combustion concept may be useful. Homogeneous Charge Compression Ignition (HCCI) has proven to be capable of reducing both Oxides of Nitrogen (NOx) and Smoke emissions significantly. In HCCI engine, a homogeneous air fuel mixture is formed in the combustion chamber and the mixture is compression ignited. Due to the fact that the mixture is homogeneous, there is no smoke producing fuel-rich regions. The NOx emissions are also low because HCCI engine runs with lean homogeneous mixture and at low in-cylinder temperature. The objective of present work is for adopting HCCI combustion in a diesel engine by addressing the problems associated with HCCI engine like (i) rapid pressure rise due to instantaneous combustion (ii) difficulty to operate at higher loads due to knocking (iii) increase of HC and CO emissions (iv) decrease in brake thermal efficiency. At high loads, rate of pressure rise is rapid in the combustion chamber. Because of this, it is inevitable to sacrifice to run the engine at high loads with HCCI concept. Also CO and HC emissions for HCCI engine were reported to be increased, which requires a remedy. The another important problem is loss in brake thermal efficiency with HCCI combustion. Hence, there is a need to focus attention to overcome these problems in order to make HCCI engine practicable. Keeping these things in mind, experimental investigation is planned in the present research work to find remedies to the above problems. For this purpose, a computerized single cylinder, four stroke, water cooled, variable compression ratio, diesel engine is selected with specifications shown in Appendix-I. The performance, emission and combustion parameters of base engine diesel are recorded at standard operating conditions such as compression ratio 16.5, injection timing 230 bTDC and injection pressure 200 bar and these readings are taken as base data.

Summary and Conclusion p. 200-207, References p. 208-226, Appendix p. 227-235

Advisors/Committee Members: Raja Gopal K.

Subjects/Keywords: Adopting HCCI; Combustion; Diesel Engine

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

K, A. R. (2013). Experimental investigation for adopting hcci combustion in a diesel engine. (Thesis). Jawaharlal Nehru Technological University, Anantapuram. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/9763

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

K, Appa Rao. “Experimental investigation for adopting hcci combustion in a diesel engine.” 2013. Thesis, Jawaharlal Nehru Technological University, Anantapuram. Accessed April 14, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/9763.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

K, Appa Rao. “Experimental investigation for adopting hcci combustion in a diesel engine.” 2013. Web. 14 Apr 2021.

Vancouver:

K AR. Experimental investigation for adopting hcci combustion in a diesel engine. [Internet] [Thesis]. Jawaharlal Nehru Technological University, Anantapuram; 2013. [cited 2021 Apr 14]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/9763.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

K AR. Experimental investigation for adopting hcci combustion in a diesel engine. [Thesis]. Jawaharlal Nehru Technological University, Anantapuram; 2013. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/9763

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Colorado State University

5. Martinez Morett, David. Reduced chemical kinetic mechanism for computational fluid dynamics simulations of high brake mean effective pressure, lean-burn natural gas engines, A.

Degree: MS(M.S.), Mechanical Engineering, 2012, Colorado State University

URL: http://hdl.handle.net/10217/78749

► Recent developments in numerical techniques and computational processing power now permit time-dependent, multi-dimensional computational fluid dynamics (CFD) calculations with detailed chemical kinetic mechanisms using commercially… (more)

▼ Recent developments in numerical techniques and computational processing power now permit time-dependent, multi-dimensional computational fluid dynamics (CFD) calculations with detailed chemical kinetic mechanisms using commercially available software. Such computations have the potential to be highly effective tools for designing lean-burn, high brake mean effective pressure (BMEP) natural gas engines that achieve high fuel efficiency and low emissions. Specifically, these CFD simulations can provide the analytical tools required to design highly optimized natural gas engine components such as pistons, intake ports, pre-combustion chambers, fuel systems and ignition systems. To accurately model the transient, multi-dimensional chemically reacting flows present in these systems, detailed chemical kinetic mechanisms are needed that accurately reproduce measured combustion data at high pressures and lean conditions, but are of reduced size to enable reasonable computational times. Prior to the present study, these CFD models could not be used as accurate design tools for application in high BMEP lean-burn gas engines because existing reduced chemical kinetic mechanisms failed to accurately reproduce experimental flame speed and ignition delay data for natural gas at high pressure (40 atm and higher) and lean (0.6 equivalence ratio and lower) conditions. Existing methane oxidation mechanisms had typically been validated with experimental conditions at atmospheric and intermediate pressures (1 to 20 atm) and relatively rich stoichiometry. Accordingly, these kinetic mechanisms were not adequate for CFD simulation of natural gas combustion for which elevated pressures and very lean conditions are typical. This thesis describes an analysis, based on experimental data, of the laminar flame speed computed from numerous, detailed chemical kinetic mechanisms for methane combustion at pressures and equivalence ratios necessary for accurate high BMEP, lean-burn natural gas engine modeling. A reduced mechanism that was shown previously to best match data at moderately lean and high pressure conditions was updated for the conditions of interest by performing sensitivity analysis using CHEMKIN. The reaction rate constants from the most sensitive reactions were appropriately adjusted to obtain better agreement at high pressure lean conditions. An evaluation of two new reduced chemical kinetic mechanisms for methane combustion was performed using Converge CFD software. The results were compared to engine data and a significant improvement on combustion performance prediction was obtained with the new mechanisms. Advisors/Committee Members: Marchese, Anthony J. (advisor), Olsen, Daniel B. (committee member), Dandy, David S. (committee member).

Subjects/Keywords: combustion; simulation; natural gas; engine

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Martinez Morett, D. (2012). Reduced chemical kinetic mechanism for computational fluid dynamics simulations of high brake mean effective pressure, lean-burn natural gas engines, A. (Masters Thesis). Colorado State University. Retrieved from http://hdl.handle.net/10217/78749

Chicago Manual of Style (16^th Edition):

Martinez Morett, David. “Reduced chemical kinetic mechanism for computational fluid dynamics simulations of high brake mean effective pressure, lean-burn natural gas engines, A.” 2012. Masters Thesis, Colorado State University. Accessed April 14, 2021. http://hdl.handle.net/10217/78749.

MLA Handbook (7^th Edition):

Martinez Morett, David. “Reduced chemical kinetic mechanism for computational fluid dynamics simulations of high brake mean effective pressure, lean-burn natural gas engines, A.” 2012. Web. 14 Apr 2021.

Vancouver:

Martinez Morett D. Reduced chemical kinetic mechanism for computational fluid dynamics simulations of high brake mean effective pressure, lean-burn natural gas engines, A. [Internet] [Masters thesis]. Colorado State University; 2012. [cited 2021 Apr 14]. Available from: http://hdl.handle.net/10217/78749.

Council of Science Editors:

Martinez Morett D. Reduced chemical kinetic mechanism for computational fluid dynamics simulations of high brake mean effective pressure, lean-burn natural gas engines, A. [Masters Thesis]. Colorado State University; 2012. Available from: http://hdl.handle.net/10217/78749

Texas A&M University

6. Li, Jue. ASSESSING POTENTIAL DIFFERENCES OF DIESEL FUEL EFFECTS ON COMBUSTION AND ENGINE BEHAVIOR BETWEEN DIFFERENTLY-SIZED ENGINES.

Degree: PhD, Mechanical Engineering, 2017, Texas A&M University

URL: http://hdl.handle.net/1969.1/187286

► Fuel properties impact the combustion and emissions behavior of diesel engines through their influence on the physical process associated with fuel injection, entrainment and fuel-air… (more)

▼ Fuel properties impact the combustion and emissions behavior of diesel engines through their influence on the physical process associated with fuel injection, entrainment and fuel-air mixing, as well as by changes to the combustion chemistry associated with fuel properties. In addition, these influences are also impacted strongly by various engine sizes. Thus, to find fuel effects on engine behavior between two engines, the research is conducted through a series of experimental tests at 1500 rev/min and two loads for commercial diesel and Fuels for Advanced Combustion Engines fuels between two engines. First, baseline testing and simulation was aimed at using experiment and a simulation model of two differently sized engines to identify the effects of engine size on combustion characteristics and emissions. The results are compared for the same brake mean effective pressure and show that engine size has a significant impact on indicated efficiency, with the larger displaced engine having a higher indicated efficiency than the smaller displaced engine. Second, the effects of cetane number (CN) on combustion and emissions between differently sized engines were investigated using a fuel matrix with each variable having a base value as well as a lower and higher level. The results show that CN significantly affects combustion phasing and emissions of the two engines in similar ways. As CN increases, the magnitude of heat release rate (HRR) increases and its peak location advances as CN increases. Moreover, the effects of distillation temperature (T90) on engine efficiency and emissions are performed. The results show comparing with medium-duty (MD) engine performance, increasing T90 shows relative stronger effects on HRR for light-duty (LD) engine, especially for the low-load condition. Finally, the effects of aromatic content on engine efficiency and emissions are discussed. The results show increasing aromatic content increases the magnitude of the peak HRR, and delays its location for both engines at the low-load condition. At the medium-load condition, increasing aromatic content has similar effect on LD engine, but does not show obvious effect on MD engines. Advisors/Committee Members: Jacobs, Timothy (advisor), Caton, Jerald (committee member), Annamalai, Kalyan (committee member), Holtzapple, Mark (committee member).

Subjects/Keywords: Combustion; emissions; engine size; fuel property

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Li, J. (2017). ASSESSING POTENTIAL DIFFERENCES OF DIESEL FUEL EFFECTS ON COMBUSTION AND ENGINE BEHAVIOR BETWEEN DIFFERENTLY-SIZED ENGINES. (Doctoral Dissertation). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/187286

Chicago Manual of Style (16^th Edition):

Li, Jue. “ASSESSING POTENTIAL DIFFERENCES OF DIESEL FUEL EFFECTS ON COMBUSTION AND ENGINE BEHAVIOR BETWEEN DIFFERENTLY-SIZED ENGINES.” 2017. Doctoral Dissertation, Texas A&M University. Accessed April 14, 2021. http://hdl.handle.net/1969.1/187286.

MLA Handbook (7^th Edition):

Li, Jue. “ASSESSING POTENTIAL DIFFERENCES OF DIESEL FUEL EFFECTS ON COMBUSTION AND ENGINE BEHAVIOR BETWEEN DIFFERENTLY-SIZED ENGINES.” 2017. Web. 14 Apr 2021.

Vancouver:

Li J. ASSESSING POTENTIAL DIFFERENCES OF DIESEL FUEL EFFECTS ON COMBUSTION AND ENGINE BEHAVIOR BETWEEN DIFFERENTLY-SIZED ENGINES. [Internet] [Doctoral dissertation]. Texas A&M University; 2017. [cited 2021 Apr 14]. Available from: http://hdl.handle.net/1969.1/187286.

Council of Science Editors:

Li J. ASSESSING POTENTIAL DIFFERENCES OF DIESEL FUEL EFFECTS ON COMBUSTION AND ENGINE BEHAVIOR BETWEEN DIFFERENTLY-SIZED ENGINES. [Doctoral Dissertation]. Texas A&M University; 2017. Available from: http://hdl.handle.net/1969.1/187286

Brno University of Technology

7. Smékal, Tomáš. Spalovací motory pro sportovní účely: Combustion Engines for Sport Purpose.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/15551

► This article contains description of basic principles of combustion engine, its parts, which suplies motor run and description of possible adjustments for motorsport too. I… (more)

Subjects/Keywords: spalovací motor; motoristický sport; combustion engine; motorsport

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Smékal, T. (2019). Spalovací motory pro sportovní účely: Combustion Engines for Sport Purpose. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/15551

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Smékal, Tomáš. “Spalovací motory pro sportovní účely: Combustion Engines for Sport Purpose.” 2019. Thesis, Brno University of Technology. Accessed April 14, 2021. http://hdl.handle.net/11012/15551.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Smékal, Tomáš. “Spalovací motory pro sportovní účely: Combustion Engines for Sport Purpose.” 2019. Web. 14 Apr 2021.

Vancouver:

Smékal T. Spalovací motory pro sportovní účely: Combustion Engines for Sport Purpose. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Apr 14]. Available from: http://hdl.handle.net/11012/15551.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Smékal T. Spalovací motory pro sportovní účely: Combustion Engines for Sport Purpose. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/15551

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universitat Politècnica de València

8. GASTALDI, PATRICK. INFLUENCE OF THE MIXTURE PREPARATION ON THE COMBUSTION IN DIRECT INJECTION ENGINES .

Degree: 2015, Universitat Politècnica de València

URL: http://hdl.handle.net/10251/48534

► During the last two centuries, the development of the internal combustion engine has followed the evolution of the customer expectations. From the race for pure… (more)

▼ During the last two centuries, the development of the internal combustion engine has followed the evolution of the customer expectations. From the race for pure performances, high power, and fun to drive, perfectly well illustrated by the fabulous Mercedes 300 SL, the focus moved towards fuel efficient engines under the pressure of the still increasing oil prices. The well-known Diesel powertrain, up to this period limited to industrial vehicles, suddenly became the object of many researches, even for automotive manufacturers, specialists for sport cars. Technologic developments, mainly concerning turbocharging and injection, allowed the opening of the passenger cars market to CI engines due to acceptable noise, power and still unreachable efficiency. On the gasoline side, direct injection moved from racing to economic cars by the introduction of the stratified combustion. More recently, the pressure rose for dramatically reducing the air pollution, both in urban areas, by limiting NOx and soot, but also, at the scale of the earth, for managing CO2 rejections and thereby enlarging the efforts on efficiency. The two first combustion systems described in this document are concerning spray guided and air guided design alternatives to obtain a fuel stratification, and thereby operate the gasoline engine without throttling the air intake, aiming at a better fuel efficiency. The first concept, called MID3S, was based on a 3 valve combustion chamber with a large squish area and a high compression ratio over 12; inspired from the May Fireball system, it was developed with a house made high pressure injector operating up to 80 bars with an outwardly opening needle. An ultra-lean flame-able mixture was formed at WOT in the vicinity of the spark plug for different operating points as low as idle, while the maximum performances were quite close to the targeted 37 kW/l. The efficiency was significantly improved compared to a similar MPI engine while CO and HC were quite acceptable. On the contrary, NOx and soot would have to be improved. The robustness of the squish aerodynamic motion was unfortunately balanced by the sensitivity of spray angle and penetration versus the back pressure and thereby late injection timings, creating plug wetting and fouling. The hollow cone structure of the fuel plume was clearly responsible of this behavior, especially because of the effect of the air entrainment inside the spray. An increase of the injection pressure from 30 to 80 bar, and probably upper, would probably reduce this effect. Concerning methodologies, a dedicated cylinder head was designed with two endoscope locations in order to visualize the interaction between spray, air, walls and combustion –or more precisely soot- with a high speed camera operating within visible wavelengths. The spray structure, formed by a succession of ligaments at the surface of the plume, was clearly emphasized in atmospheric conditions. The second design, called K5M, was based on an adjustable high tumble motion … Advisors/Committee Members: Payri González, Francisco (advisor).

Subjects/Keywords: Mixture preparation; Combustion; Engine; Pollutant emissions

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

GASTALDI, P. (2015). INFLUENCE OF THE MIXTURE PREPARATION ON THE COMBUSTION IN DIRECT INJECTION ENGINES . (Doctoral Dissertation). Universitat Politècnica de València. Retrieved from http://hdl.handle.net/10251/48534

Chicago Manual of Style (16^th Edition):

GASTALDI, PATRICK. “INFLUENCE OF THE MIXTURE PREPARATION ON THE COMBUSTION IN DIRECT INJECTION ENGINES .” 2015. Doctoral Dissertation, Universitat Politècnica de València. Accessed April 14, 2021. http://hdl.handle.net/10251/48534.

MLA Handbook (7^th Edition):

GASTALDI, PATRICK. “INFLUENCE OF THE MIXTURE PREPARATION ON THE COMBUSTION IN DIRECT INJECTION ENGINES .” 2015. Web. 14 Apr 2021.

Vancouver:

GASTALDI P. INFLUENCE OF THE MIXTURE PREPARATION ON THE COMBUSTION IN DIRECT INJECTION ENGINES . [Internet] [Doctoral dissertation]. Universitat Politècnica de València; 2015. [cited 2021 Apr 14]. Available from: http://hdl.handle.net/10251/48534.

Council of Science Editors:

GASTALDI P. INFLUENCE OF THE MIXTURE PREPARATION ON THE COMBUSTION IN DIRECT INJECTION ENGINES . [Doctoral Dissertation]. Universitat Politècnica de València; 2015. Available from: http://hdl.handle.net/10251/48534

Michigan Technological University

9. Loveland, Dustin P. DEVELOPMENT OF A PREDICTIVE COMBUSTION MODEL OF A SPARK IGNITED ENGINE WITH GASOLINE DIRECT INJECTION, VARIABLE VALVE TIMING, DURATION AND LIFT TECHNOLOGIES.

Degree: MS, Department of Mechanical Engineering-Engineering Mechanics, 2012, Michigan Technological University

URL: https://digitalcommons.mtu.edu/etd-restricted/111

► There is a need by engine manufactures for computationally efficient and accurate predictive combustion modeling tools for integration in engine simulation software for the… (more)

Subjects/Keywords: Combustion; Development; Engine; Modeling; Mechanical Engineering

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Loveland, D. P. (2012). DEVELOPMENT OF A PREDICTIVE COMBUSTION MODEL OF A SPARK IGNITED ENGINE WITH GASOLINE DIRECT INJECTION, VARIABLE VALVE TIMING, DURATION AND LIFT TECHNOLOGIES. (Masters Thesis). Michigan Technological University. Retrieved from https://digitalcommons.mtu.edu/etd-restricted/111

Chicago Manual of Style (16^th Edition):

Loveland, Dustin P. “DEVELOPMENT OF A PREDICTIVE COMBUSTION MODEL OF A SPARK IGNITED ENGINE WITH GASOLINE DIRECT INJECTION, VARIABLE VALVE TIMING, DURATION AND LIFT TECHNOLOGIES.” 2012. Masters Thesis, Michigan Technological University. Accessed April 14, 2021. https://digitalcommons.mtu.edu/etd-restricted/111.

MLA Handbook (7^th Edition):

Loveland, Dustin P. “DEVELOPMENT OF A PREDICTIVE COMBUSTION MODEL OF A SPARK IGNITED ENGINE WITH GASOLINE DIRECT INJECTION, VARIABLE VALVE TIMING, DURATION AND LIFT TECHNOLOGIES.” 2012. Web. 14 Apr 2021.

Vancouver:

Loveland DP. DEVELOPMENT OF A PREDICTIVE COMBUSTION MODEL OF A SPARK IGNITED ENGINE WITH GASOLINE DIRECT INJECTION, VARIABLE VALVE TIMING, DURATION AND LIFT TECHNOLOGIES. [Internet] [Masters thesis]. Michigan Technological University; 2012. [cited 2021 Apr 14]. Available from: https://digitalcommons.mtu.edu/etd-restricted/111.

Council of Science Editors:

Loveland DP. DEVELOPMENT OF A PREDICTIVE COMBUSTION MODEL OF A SPARK IGNITED ENGINE WITH GASOLINE DIRECT INJECTION, VARIABLE VALVE TIMING, DURATION AND LIFT TECHNOLOGIES. [Masters Thesis]. Michigan Technological University; 2012. Available from: https://digitalcommons.mtu.edu/etd-restricted/111

University of Kansas

10. Mangus, Michael D. Design, Construction, and Validation of an In-Cylinder Pressure Recording System for Internal Combustion Engine Analysis.

Degree: MS, Mechanical Engineering, 2012, University of Kansas

URL: http://hdl.handle.net/1808/9828

► Due to an increased global interest in sustainable energy sources, it is imperative that the transportation sector find substitutes for the limited petroleum supply, such… (more)

Subjects/Keywords: Mechanical engineering; Biodiesel; Combustion; Engine; Labview

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Mangus, M. D. (2012). Design, Construction, and Validation of an In-Cylinder Pressure Recording System for Internal Combustion Engine Analysis. (Masters Thesis). University of Kansas. Retrieved from http://hdl.handle.net/1808/9828

Chicago Manual of Style (16^th Edition):

Mangus, Michael D. “Design, Construction, and Validation of an In-Cylinder Pressure Recording System for Internal Combustion Engine Analysis.” 2012. Masters Thesis, University of Kansas. Accessed April 14, 2021. http://hdl.handle.net/1808/9828.

MLA Handbook (7^th Edition):

Mangus, Michael D. “Design, Construction, and Validation of an In-Cylinder Pressure Recording System for Internal Combustion Engine Analysis.” 2012. Web. 14 Apr 2021.

Vancouver:

Mangus MD. Design, Construction, and Validation of an In-Cylinder Pressure Recording System for Internal Combustion Engine Analysis. [Internet] [Masters thesis]. University of Kansas; 2012. [cited 2021 Apr 14]. Available from: http://hdl.handle.net/1808/9828.

Council of Science Editors:

Mangus MD. Design, Construction, and Validation of an In-Cylinder Pressure Recording System for Internal Combustion Engine Analysis. [Masters Thesis]. University of Kansas; 2012. Available from: http://hdl.handle.net/1808/9828

Colorado State University

11. Dobos, Aron Peter. Quasidimensional modeling of reacting fuel sprays using detailed chemical kinetics.

Degree: PhD, Mechanical Engineering, 2016, Colorado State University

URL: http://hdl.handle.net/10217/178914

► Since its invention in the late 1800s, the internal combustion engine has been indispensable to society for motive transport at all scales worldwide. Despite growing… (more)

▼ Since its invention in the late 1800s, the internal combustion engine has been indispensable to society for motive transport at all scales worldwide. Despite growing concern about the environmental damage caused by the pervasive use of these engines, no compelling alternative has yet emerged that matches the internal combustion engine's robustness, versatility, and high power-to-weight ratio. Consequently, as requirements on engine designs continue to increase to meet new emissions and efficiency standards, there is a strong need for computationally efficient and accurate predictive modeling of complex engine combustion processes. This work presents an efficient approach to direct injection engine combustion simulation that uses detailed chemical kinetics with a quasidimensional fuel spray model. Instead of a full multidimensional approach that solves continuity, momentum, energy, and chemistry equations simultaneously over a fine grid, the spatial information is greatly reduced and modeled phenomenologically. The model discretizes the fuel spray into independent parcels that entrain air from the surroundings and account for liquid fuel vaporization. Gas phase species concentrations and heat release in each parcel are calculated by detailed chemical kinetic mechanisms for the fuel under consideration. Comparisons of predicted pressure, heat release, and emissions with data from diesel engine experiments show good agreement overall, and suggest that spray combustion processes can be modeled without calibration of empirical constants at a significantly lower computational cost than with standard multidimensional tools. The new combustion model is also used to investigate spray structure and emissions trends for biodiesel fuels in a compression ignition engine. Results underscore the complex relationships among operational parameters, fuel chemistry, and NOx emissions, and provide further evidence of a link between stoichiometry near the flame lift-off length and formation of NOx. In addition, fuel molecular structure is demonstrated to be a significant factor in NOx emissions, but more robust chemical kinetic mechanisms and soot models for biodiesel are likely needed for improved predictive accuracy in modeling alternative fuels. Advisors/Committee Members: Kirkpatrick, Allan T. (advisor), Marchese, Anthony (committee member), Gao, Xinfeng (committee member), Venayagamoorthy, Karan (committee member).

Subjects/Keywords: combustion; kinetics; spray; engine; chemical; simulation

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Dobos, A. P. (2016). Quasidimensional modeling of reacting fuel sprays using detailed chemical kinetics. (Doctoral Dissertation). Colorado State University. Retrieved from http://hdl.handle.net/10217/178914

Chicago Manual of Style (16^th Edition):

Dobos, Aron Peter. “Quasidimensional modeling of reacting fuel sprays using detailed chemical kinetics.” 2016. Doctoral Dissertation, Colorado State University. Accessed April 14, 2021. http://hdl.handle.net/10217/178914.

MLA Handbook (7^th Edition):

Dobos, Aron Peter. “Quasidimensional modeling of reacting fuel sprays using detailed chemical kinetics.” 2016. Web. 14 Apr 2021.

Vancouver:

Dobos AP. Quasidimensional modeling of reacting fuel sprays using detailed chemical kinetics. [Internet] [Doctoral dissertation]. Colorado State University; 2016. [cited 2021 Apr 14]. Available from: http://hdl.handle.net/10217/178914.

Council of Science Editors:

Dobos AP. Quasidimensional modeling of reacting fuel sprays using detailed chemical kinetics. [Doctoral Dissertation]. Colorado State University; 2016. Available from: http://hdl.handle.net/10217/178914

King Abdullah University of Science and Technology

12. Aljabri, Hammam H. A Computational Investigation of Multiple Injection Strategy in an Isobaric Combustion Engine.

Degree: Physical Science and Engineering (PSE) Division, 2019, King Abdullah University of Science and Technology

URL: http://hdl.handle.net/10754/656454

► Abstract: This thesis aims to contribute to the development of the isobaric combustion engines by exploring multiple injection strategies, by means of computational simulations using… (more)

▼ Abstract: This thesis aims to contribute to the development of the isobaric combustion engines by exploring multiple injection strategies, by means of computational simulations using a commercial software Converge. A single injection case validated with experimental data in terms pressure trace and heat release rate was used as a baseline reference. The adjustment of the turbulent kinetic energy dissipation constant is found to have the most significant influence in reproducing the pressure and heat release rate histories observed in the experiment. As a first attempt to achieve isobaric combustion, a multiple injection strategy using a single injector was explored with up to four consecutive injections. Considering that the computational simulations were unable to reproduce the experimental data due to a number of uncertainties in the implemented models, the present study attempted to identify the main causes of the discrepancies through various parametric studies. First, different liquid fuel properties were examined and it was found that, while the physical properties of the fuels have a notable effect in terms of evaporation and atomization, such variations were not sufficient to reproduce the experimentally observed heat release cycle. Next, the effects of the uncertainties in the kinetic mechanisms were assessed by the reaction multiplier, an artificial adjustment of the rate constants, and it was found that the reaction multiplier affected the ignition of the first injection, but not the subsequent injection events. As such, the use of reaction multipliers to reproduce the experimental data was found to be unsuccessful. The effect of thermodynamics properties was also examined by employing real-gas equations of state, such as Redlich-Kwong and Peng-Robinson, and the results showed little difference at the conditions under consideration. Finally, advancing the start of injection was found to have the most significant effect on pressure trace and heat release rate to lead to a substantial improvement in the numerical prediction. The results suggest that the key uncertainties in modeling of the present engine combustion are likely the accurate timing of the start of injection combined with the exact injection rate shape profile. Advisors/Committee Members: Im, Hong G. (advisor), Johansson, Bengt (committee member), Parsani, Matteo (committee member).

Subjects/Keywords: Isobaric Combustion; CFD; Multiple Injection; Diesel Engine

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Aljabri, H. H. (2019). A Computational Investigation of Multiple Injection Strategy in an Isobaric Combustion Engine. (Thesis). King Abdullah University of Science and Technology. Retrieved from http://hdl.handle.net/10754/656454

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Aljabri, Hammam H. “A Computational Investigation of Multiple Injection Strategy in an Isobaric Combustion Engine.” 2019. Thesis, King Abdullah University of Science and Technology. Accessed April 14, 2021. http://hdl.handle.net/10754/656454.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Aljabri, Hammam H. “A Computational Investigation of Multiple Injection Strategy in an Isobaric Combustion Engine.” 2019. Web. 14 Apr 2021.

Vancouver:

Aljabri HH. A Computational Investigation of Multiple Injection Strategy in an Isobaric Combustion Engine. [Internet] [Thesis]. King Abdullah University of Science and Technology; 2019. [cited 2021 Apr 14]. Available from: http://hdl.handle.net/10754/656454.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Aljabri HH. A Computational Investigation of Multiple Injection Strategy in an Isobaric Combustion Engine. [Thesis]. King Abdullah University of Science and Technology; 2019. Available from: http://hdl.handle.net/10754/656454

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Université de Sherbrooke

13. Leboeuf, Maxime. Modeling the sealing of the X-Mini engine by LiquidPiston: Modélisation de l'étanchéité du moteur X-Mini de LiquidPiston.

Degree: 2019, Université de Sherbrooke

URL: http://hdl.handle.net/11143/16106

► Abstract: Rotary engines are useful for applications that require high power density. However, these engines often show significant leakage from the combustion chamber, premature wear… (more)

Subjects/Keywords: Moteur rotatif; Rotary engine; Scellement; Moteur à combustion interne; Sealing; Internal combustion engine

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Leboeuf, M. (2019). Modeling the sealing of the X-Mini engine by LiquidPiston: Modélisation de l'étanchéité du moteur X-Mini de LiquidPiston. (Masters Thesis). Université de Sherbrooke. Retrieved from http://hdl.handle.net/11143/16106

Chicago Manual of Style (16^th Edition):

Leboeuf, Maxime. “Modeling the sealing of the X-Mini engine by LiquidPiston: Modélisation de l'étanchéité du moteur X-Mini de LiquidPiston.” 2019. Masters Thesis, Université de Sherbrooke. Accessed April 14, 2021. http://hdl.handle.net/11143/16106.

MLA Handbook (7^th Edition):

Leboeuf, Maxime. “Modeling the sealing of the X-Mini engine by LiquidPiston: Modélisation de l'étanchéité du moteur X-Mini de LiquidPiston.” 2019. Web. 14 Apr 2021.

Vancouver:

Leboeuf M. Modeling the sealing of the X-Mini engine by LiquidPiston: Modélisation de l'étanchéité du moteur X-Mini de LiquidPiston. [Internet] [Masters thesis]. Université de Sherbrooke; 2019. [cited 2021 Apr 14]. Available from: http://hdl.handle.net/11143/16106.

Council of Science Editors:

Leboeuf M. Modeling the sealing of the X-Mini engine by LiquidPiston: Modélisation de l'étanchéité du moteur X-Mini de LiquidPiston. [Masters Thesis]. Université de Sherbrooke; 2019. Available from: http://hdl.handle.net/11143/16106

Brno University of Technology

14. Kučera, Petr. Historický vývoj pístových spalovacích motorů: Historical development of piston internal combustion engines.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/7883

► This work aims to characterize the basic stages of development of piston combustion engines for use in vehicles. The first part contains familiar with the… (more)

Subjects/Keywords: Pístový spalovací motor; zážehový; vznětový motor; spalování; Piston internal combustion engine; gasoline; diesel engine; combustion

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Kučera, P. (2019). Historický vývoj pístových spalovacích motorů: Historical development of piston internal combustion engines. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/7883

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Kučera, Petr. “Historický vývoj pístových spalovacích motorů: Historical development of piston internal combustion engines.” 2019. Thesis, Brno University of Technology. Accessed April 14, 2021. http://hdl.handle.net/11012/7883.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Kučera, Petr. “Historický vývoj pístových spalovacích motorů: Historical development of piston internal combustion engines.” 2019. Web. 14 Apr 2021.

Vancouver:

Kučera P. Historický vývoj pístových spalovacích motorů: Historical development of piston internal combustion engines. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Apr 14]. Available from: http://hdl.handle.net/11012/7883.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Kučera P. Historický vývoj pístových spalovacích motorů: Historical development of piston internal combustion engines. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/7883

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Brno University of Technology

15. Roušar, Jiří. Vodíkový spalovací motor na základě zážehového spalovacího motoru: Hydrogen Internal Combustion Engine based on SI Engine.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/39735

► The aim of the Bachelor thesis is comparing a hydrogen combustion engine with conventional combustion engines and comparing the advantages and disadvantages of the hydrogen… (more)

Subjects/Keywords: Vodík; spalovací motor; vodíkový spalovací motor; elektrolýza; Hydrogen; combustion engine; hydrogen combustion engine; electrolysis

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Roušar, J. (2019). Vodíkový spalovací motor na základě zážehového spalovacího motoru: Hydrogen Internal Combustion Engine based on SI Engine. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/39735

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Roušar, Jiří. “Vodíkový spalovací motor na základě zážehového spalovacího motoru: Hydrogen Internal Combustion Engine based on SI Engine.” 2019. Thesis, Brno University of Technology. Accessed April 14, 2021. http://hdl.handle.net/11012/39735.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Roušar, Jiří. “Vodíkový spalovací motor na základě zážehového spalovacího motoru: Hydrogen Internal Combustion Engine based on SI Engine.” 2019. Web. 14 Apr 2021.

Vancouver:

Roušar J. Vodíkový spalovací motor na základě zážehového spalovacího motoru: Hydrogen Internal Combustion Engine based on SI Engine. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Apr 14]. Available from: http://hdl.handle.net/11012/39735.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Roušar J. Vodíkový spalovací motor na základě zážehového spalovacího motoru: Hydrogen Internal Combustion Engine based on SI Engine. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/39735

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Brno University of Technology

16. Roušar, Jiří. Stanovení vlivu příměsi vodíku v zážehovém spalovacího motoru: Determination of Hydrogen Mixture Influence on Internal Combustion Engine.

Degree: 2018, Brno University of Technology

URL: http://hdl.handle.net/11012/60141

► The aim of the Bachelor thesis is comparing a hydrogen combustion engine with conventional combustion engines and comparing the advantages and disadvantages of the hydrogen… (more)

Subjects/Keywords: Vodík; spalovací motor; vodíkový spalovací motor; elektrolýza; Hydrogen; combustion engine; hydrogen combustion engine; electrolysis

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Roušar, J. (2018). Stanovení vlivu příměsi vodíku v zážehovém spalovacího motoru: Determination of Hydrogen Mixture Influence on Internal Combustion Engine. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/60141

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Roušar, Jiří. “Stanovení vlivu příměsi vodíku v zážehovém spalovacího motoru: Determination of Hydrogen Mixture Influence on Internal Combustion Engine.” 2018. Thesis, Brno University of Technology. Accessed April 14, 2021. http://hdl.handle.net/11012/60141.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Roušar, Jiří. “Stanovení vlivu příměsi vodíku v zážehovém spalovacího motoru: Determination of Hydrogen Mixture Influence on Internal Combustion Engine.” 2018. Web. 14 Apr 2021.

Vancouver:

Roušar J. Stanovení vlivu příměsi vodíku v zážehovém spalovacího motoru: Determination of Hydrogen Mixture Influence on Internal Combustion Engine. [Internet] [Thesis]. Brno University of Technology; 2018. [cited 2021 Apr 14]. Available from: http://hdl.handle.net/11012/60141.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Roušar J. Stanovení vlivu příměsi vodíku v zážehovém spalovacího motoru: Determination of Hydrogen Mixture Influence on Internal Combustion Engine. [Thesis]. Brno University of Technology; 2018. Available from: http://hdl.handle.net/11012/60141

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Purdue University

17. Mathur, Adhiraj B. STIRLOCHARGER POWERED BY EXHAUST HEAT FOR HIGH EFFICIENCY COMBUSTION AND ELECTRIC GENERATION.

Degree: MSME, Engineering Technology, 2015, Purdue University

URL: https://docs.lib.purdue.edu/open_access_theses/1153

► Stirling engines have been in existence since the early 1900s, and have been of little study in the recent years. Stirling engines are low power,… (more)

Subjects/Keywords: Inernal Combustion Engine; Stirling Engine; Stirlocharger; Supercharger; Turbocharger; Waste Heat Recovery

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Mathur, A. B. (2015). STIRLOCHARGER POWERED BY EXHAUST HEAT FOR HIGH EFFICIENCY COMBUSTION AND ELECTRIC GENERATION. (Thesis). Purdue University. Retrieved from https://docs.lib.purdue.edu/open_access_theses/1153

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Mathur, Adhiraj B. “STIRLOCHARGER POWERED BY EXHAUST HEAT FOR HIGH EFFICIENCY COMBUSTION AND ELECTRIC GENERATION.” 2015. Thesis, Purdue University. Accessed April 14, 2021. https://docs.lib.purdue.edu/open_access_theses/1153.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Mathur, Adhiraj B. “STIRLOCHARGER POWERED BY EXHAUST HEAT FOR HIGH EFFICIENCY COMBUSTION AND ELECTRIC GENERATION.” 2015. Web. 14 Apr 2021.

Vancouver:

Mathur AB. STIRLOCHARGER POWERED BY EXHAUST HEAT FOR HIGH EFFICIENCY COMBUSTION AND ELECTRIC GENERATION. [Internet] [Thesis]. Purdue University; 2015. [cited 2021 Apr 14]. Available from: https://docs.lib.purdue.edu/open_access_theses/1153.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Mathur AB. STIRLOCHARGER POWERED BY EXHAUST HEAT FOR HIGH EFFICIENCY COMBUSTION AND ELECTRIC GENERATION. [Thesis]. Purdue University; 2015. Available from: https://docs.lib.purdue.edu/open_access_theses/1153

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Toronto

18. Pop, Alin Cristian. Emissions Characteristics of a Natural Gas Fuelled Engine.

Degree: 2016, University of Toronto

URL: http://hdl.handle.net/1807/79567

►

A naturally aspirated former Ford hydrogen research internal combustion engine was tested at the University of Toronto. The engine was fuelled with compressed natural gas… (more)

Subjects/Keywords: emission; engine; hydrogen; internal combustion engine; natural gas; particulate matter; 0537

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Pop, A. C. (2016). Emissions Characteristics of a Natural Gas Fuelled Engine. (Masters Thesis). University of Toronto. Retrieved from http://hdl.handle.net/1807/79567

Chicago Manual of Style (16^th Edition):

Pop, Alin Cristian. “Emissions Characteristics of a Natural Gas Fuelled Engine.” 2016. Masters Thesis, University of Toronto. Accessed April 14, 2021. http://hdl.handle.net/1807/79567.

MLA Handbook (7^th Edition):

Pop, Alin Cristian. “Emissions Characteristics of a Natural Gas Fuelled Engine.” 2016. Web. 14 Apr 2021.

Vancouver:

Pop AC. Emissions Characteristics of a Natural Gas Fuelled Engine. [Internet] [Masters thesis]. University of Toronto; 2016. [cited 2021 Apr 14]. Available from: http://hdl.handle.net/1807/79567.

Council of Science Editors:

Pop AC. Emissions Characteristics of a Natural Gas Fuelled Engine. [Masters Thesis]. University of Toronto; 2016. Available from: http://hdl.handle.net/1807/79567

King Abdullah University of Science and Technology

19. Shankar, Vijai. Double Compression Expansion Engine: Evaluation of Thermodynamic Cycle and Combustion Concepts.

Degree: Physical Science and Engineering (PSE) Division, 2019, King Abdullah University of Science and Technology

URL: http://hdl.handle.net/10754/660294

► The efficiency of an internal combustion (IC) engine is governed by the thermodynamic cycle underpinning its operation. The thermodynamic efficiency of these devices is primarily… (more)

▼ The efficiency of an internal combustion (IC) engine is governed by the thermodynamic cycle underpinning its operation. The thermodynamic efficiency of these devices is primarily determined by the temperature gradient created during the compression process. The final conversion efficiency also known as brake thermal efficiency (BTE) of IC engines, however, also depend on other processes associated with its operation. BTE is a product of the combustion, thermodynamic, gas-exchange, and mechanical efficiencies. The improvement of BTE through maximation of any one of the four efficiencies is reduced by its implication of the other three. Split-cycle engine provides an alternative method of improving the engine efficiency through over-expansion of combustion gases by transferring it to a cylinder of greater volume. The operation of split-cycle engines is based on either the Brayton or the Atkinson Cycles. Atkinson Cycle has been demonstrated in IC engines without the split-cycle architecture but is limited by the reduced energy density. Double Compression Expansion Engine (DCEE) provides a method of accomplishing the Atkinson Cycle without the constraints faced in conventional engine architectures. DCEE splits the compression and expansion processes in a vertical manner that enables the use of larger cylinder volumes for over-expansion as well as first-stage compression without much friction penalties. The present thesis explores the thermodynamic cycle of this novel engine architecture using well-validated 1-dimensional engine models solving for gas-exchange, real gas properties, and heat transfer provided in the GT-Power software tool. The effect of compression ratio, rate of heat addition, sensitivity to design and modeling parameters was assessed and contrasted against conventional engine architecture. The synergies of combining low-temperature combustion (LTC) concepts with DCEE was investigated using simulation and experimental data. DCEE relaxes many constraints placed the operation of an engine in Homogenous Charge Compression Ignition (HCCI) mode. The limitations of adopting Partially Premixed Combustion (PPC) concept is also alleviated by the DCEE concept. BTE improvement of above 10% points is achievable through the DCEE concept along with possibility to achieve very low emissions through use of LTC concepts and new after-treatment methods uniquely available to the DCEE. Advisors/Committee Members: Johansson, Bengt (advisor), Sarathy, Mani (committee member), Mishra, Himanshu (committee member), Turner, Jamie (committee member).

Subjects/Keywords: Split-Cycle Engine; High-Efficiency Engine; 1-D Engine simulation; Low-Temperature Combustion; Thermodynamics

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Shankar, V. (2019). Double Compression Expansion Engine: Evaluation of Thermodynamic Cycle and Combustion Concepts. (Thesis). King Abdullah University of Science and Technology. Retrieved from http://hdl.handle.net/10754/660294

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Shankar, Vijai. “Double Compression Expansion Engine: Evaluation of Thermodynamic Cycle and Combustion Concepts.” 2019. Thesis, King Abdullah University of Science and Technology. Accessed April 14, 2021. http://hdl.handle.net/10754/660294.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Shankar, Vijai. “Double Compression Expansion Engine: Evaluation of Thermodynamic Cycle and Combustion Concepts.” 2019. Web. 14 Apr 2021.

Vancouver:

Shankar V. Double Compression Expansion Engine: Evaluation of Thermodynamic Cycle and Combustion Concepts. [Internet] [Thesis]. King Abdullah University of Science and Technology; 2019. [cited 2021 Apr 14]. Available from: http://hdl.handle.net/10754/660294.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Shankar V. Double Compression Expansion Engine: Evaluation of Thermodynamic Cycle and Combustion Concepts. [Thesis]. King Abdullah University of Science and Technology; 2019. Available from: http://hdl.handle.net/10754/660294

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

20. Belaid-Saleh, Haïfa. Etude des régimes de combustion dans le contexte du fonctionnement dual fuel : Investigation of combustion regimes in a dual fuel engine.

Degree: Docteur es, Mécanique et énergétique, 2015, Université d'Orléans

URL: http://www.theses.fr/2015ORLE2064

►

Le développement de stratégies de combustion innovantes est nécessaire aujourd’hui pour répondre aux réglementations de plus en plus intransigeantes qui fixent les seuils d’émissions polluantes… (more)

▼

Le développement de stratégies de combustion innovantes est nécessaire aujourd’hui pour répondre aux réglementations de plus en plus intransigeantes qui fixent les seuils d’émissions polluantes par les véhicules neufs. Parmi ces stratégies, l’approche Dual Fuel a montré un fort potentiel dans la réduction des émissions tout en maintenant des niveaux de rendement élevés. Le concept Dual Fuel est fondé sur la formation d’un mélange homogène d’air et d’un carburant volatile (essence, méthane, éthanol...) allumé par une injection directe d’un carburant à fort cétane (de type gazole) dans la chambre de combustion. Une compréhension détaillée des différents processus de combustion est primordiale pour aider au développement des stratégies Dual Fuel concrètes. Dans ce contexte, le développement d’un modèle adapté, couplé à des mesures expérimentales réalisées sur moteur optique, est indispensable pour optimiser la combustion Dual Fuel. Une étude numérique, fondée sur le couplage d’un modèle de combustion turbulente dédié à la propagation de flamme dans des milieux stratifiés (ECFM3Z) et un modèle de chimie tabulée pour la prédiction de l’auto-inflammation (TKI), a été menée afin d’évaluer la capacité des modèles existants à prédire les différents régimes de combustion qui pourraient exister dans les stratégies Dual Fuel. Des critères de transition ont été ajoutés et évalués afin d’améliorer le couplage des deux modèles et d’assurer la transition entre l’auto-inflammation et la propagation de flamme. D’autre part, l’étude expérimentale sur un moteur à accès optiques a permis d’étudier des variations de richesse, de carburant de prémélange et de taux de dilution et de caractériser de manière fine les mécanismes de la combustion Dual Fuel afin de servir de base de données aux développements de modèles CFD.

Advanced combustion strategies are required in response to increasingly stringent worldwide regulations governing exhaust gas emissions in the transport sector. Among these strategies, the Dual Fuel approach has shown potential to reduce engine-out pollutant emissions without penalizing combustion efficiency. The Dual Fuel concept relies on the formation of a homogeneous mixture of air with a highly volatile fuel (gasoline, methane, ethanol...) which is ignited by direct injection of a high-cetane fuel (Diesel fuel) in the combustion chamber. An improved understanding of the underlying physical phenomena and a detailed insight of the predominant combustion regime(s) are required in order to advance the development of the Dual Fuel combustion strategies. In this context, numerical modeling and optical engine measurements are combined to investigate Dual Fuel combustion. A numerical study, based on the coupling between a turbulent combustion model for flame propagation in stratified mixtures (ECFM3Z) and a tabulated kinetics model for auto-ignition (TKI), was conducted to evaluate the capacity of the existing models to cope with the various combustion regimes that might exist in Duel Fuel combustion strategies. Transition…

Advisors/Committee Members: Mounaïm-Rousselle, Christine (thesis director).

Subjects/Keywords: Dual Fuel; Régimes de Combustion; Dual Fuel engine; Combustion regimes

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Belaid-Saleh, H. (2015). Etude des régimes de combustion dans le contexte du fonctionnement dual fuel : Investigation of combustion regimes in a dual fuel engine. (Doctoral Dissertation). Université d'Orléans. Retrieved from http://www.theses.fr/2015ORLE2064

Chicago Manual of Style (16^th Edition):

Belaid-Saleh, Haïfa. “Etude des régimes de combustion dans le contexte du fonctionnement dual fuel : Investigation of combustion regimes in a dual fuel engine.” 2015. Doctoral Dissertation, Université d'Orléans. Accessed April 14, 2021. http://www.theses.fr/2015ORLE2064.

MLA Handbook (7^th Edition):

Belaid-Saleh, Haïfa. “Etude des régimes de combustion dans le contexte du fonctionnement dual fuel : Investigation of combustion regimes in a dual fuel engine.” 2015. Web. 14 Apr 2021.

Vancouver:

Belaid-Saleh H. Etude des régimes de combustion dans le contexte du fonctionnement dual fuel : Investigation of combustion regimes in a dual fuel engine. [Internet] [Doctoral dissertation]. Université d'Orléans; 2015. [cited 2021 Apr 14]. Available from: http://www.theses.fr/2015ORLE2064.

Council of Science Editors:

Belaid-Saleh H. Etude des régimes de combustion dans le contexte du fonctionnement dual fuel : Investigation of combustion regimes in a dual fuel engine. [Doctoral Dissertation]. Université d'Orléans; 2015. Available from: http://www.theses.fr/2015ORLE2064

University of Adelaide

21. Hardi, Justin S. Experimental investigation of high frequency combustion instability in cryogenic oxygen-hydrogen rocket engines.

Degree: 2012, University of Adelaide

URL: http://hdl.handle.net/2440/82071

► Self-sustaining pressure oscillations in the combustion chamber, or combustion instability, is a commonly encountered and potentially damaging phenomenon in liquid propellant rocket engines (LPREs). In… (more)

▼ Self-sustaining pressure oscillations in the combustion chamber, or combustion instability, is a commonly encountered and potentially damaging phenomenon in liquid propellant rocket engines (LPREs). In the high-frequency variety of combustion instability, the pressure oscillations in the combustion chamber take on the form and frequency of an acoustic resonance mode of the combustion chamber volume. The most common mode in naturally occurring instability, and also the most destructive, is the first tangential mode, with acoustic gas oscillations oriented transversally to the direction of propellant injection. The instability is driven by the coupling between acoustic oscillations and unsteady energy release from combustion. The mechanisms through which injection and combustion firstly respond to the acoustic field, and secondly feed energy back into the acoustic field have not yet been fully characterised. Shear coaxial-type injectors are common in LPREs. Past experimental and numerical research efforts have investigated the interaction between this type of injector and transverse acoustic fields. Some experimental efforts have successfully forced transverse acoustic modes and studied their influence on shear coaxial injection under LPRE-like conditions. Acoustic forcing of coaxially injected LOx/H₂ has previously been conducted only at low pressures and injection performance levels. This work addresses the lack of experimental data available for the interaction of shear coaxial injection of LOx/H₂ with acoustics under conditions representative of industrial engines. A new experimental rocket combustor, designated ‘BKH’, was developed for investigating the response of a reacting spray of coaxially injected LOx/H₂ to an acoustic field. For characterising the response, simultaneous high-speed recordings of both backlit shadowgraph and hydroxyl radical (OH*) chemiluminescence imaging have been captured through optical access windows. The operating conditions of BKH extend to conditions more representative of actual LPREs than has previously been achieved with LOx/H₂ in studies of flame-acoustic interaction. BKH was run at pressures of 40 or 60 bar, which correspond to subcritical and supercritical thermo-physical regimes for oxygen. Hydrogen injection temperature was ambient, around 290 K, or cryogenic, around 50 K. An array of multiple injectors was used to better represent real engines. A system for modulating the nozzle exhaust flow was used to induce acoustic perturbations inside the combustion chamber. Two types of perturbation were applied to the near-injection region; oscillating acoustic pressure, and oscillating transverse acoustic velocity. BKH was used to investigate how subcritical or supercritical pressure level and ambient or cryogenic hydrogen injection temperature influence the interaction of acoustic pressure or velocity with injection and combustion processes. Shadowgraph imaging reveals up to 70% reduction in the length of the oxygen jet when subjected to acoustic velocity of amplitude approaching… Advisors/Committee Members: Dally, Bassam B. (advisor), Oschwald, Michael (advisor), School of Mechanical Engineering (school).

Subjects/Keywords: rocket engine; combustion; cryogenic; instabilities; combustion instabilities; liquid rocket

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Hardi, J. S. (2012). Experimental investigation of high frequency combustion instability in cryogenic oxygen-hydrogen rocket engines. (Thesis). University of Adelaide. Retrieved from http://hdl.handle.net/2440/82071

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Hardi, Justin S. “Experimental investigation of high frequency combustion instability in cryogenic oxygen-hydrogen rocket engines.” 2012. Thesis, University of Adelaide. Accessed April 14, 2021. http://hdl.handle.net/2440/82071.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Hardi, Justin S. “Experimental investigation of high frequency combustion instability in cryogenic oxygen-hydrogen rocket engines.” 2012. Web. 14 Apr 2021.

Vancouver:

Hardi JS. Experimental investigation of high frequency combustion instability in cryogenic oxygen-hydrogen rocket engines. [Internet] [Thesis]. University of Adelaide; 2012. [cited 2021 Apr 14]. Available from: http://hdl.handle.net/2440/82071.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Hardi JS. Experimental investigation of high frequency combustion instability in cryogenic oxygen-hydrogen rocket engines. [Thesis]. University of Adelaide; 2012. Available from: http://hdl.handle.net/2440/82071

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

King Abdullah University of Science and Technology

22. Almatrafi, Fahad A. Narrow-throat Pre-chamber Combustion with Ethanol, a Comparison with Methane.

Degree: Physical Science and Engineering (PSE) Division, 2020, King Abdullah University of Science and Technology

URL: http://hdl.handle.net/10754/662605

► Pre-Chamber combustion systems are gaining popularity in Internal Combustion Engines (ICE) with the increasing emissions regulations due to their advantages in improving fuel economy by… (more)

Subjects/Keywords: Internal combustion engine; Pre-chamber; Lean combustion; Ethanol

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Almatrafi, F. A. (2020). Narrow-throat Pre-chamber Combustion with Ethanol, a Comparison with Methane. (Thesis). King Abdullah University of Science and Technology. Retrieved from http://hdl.handle.net/10754/662605

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Almatrafi, Fahad A. “Narrow-throat Pre-chamber Combustion with Ethanol, a Comparison with Methane.” 2020. Thesis, King Abdullah University of Science and Technology. Accessed April 14, 2021. http://hdl.handle.net/10754/662605.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Almatrafi, Fahad A. “Narrow-throat Pre-chamber Combustion with Ethanol, a Comparison with Methane.” 2020. Web. 14 Apr 2021.

Vancouver:

Almatrafi FA. Narrow-throat Pre-chamber Combustion with Ethanol, a Comparison with Methane. [Internet] [Thesis]. King Abdullah University of Science and Technology; 2020. [cited 2021 Apr 14]. Available from: http://hdl.handle.net/10754/662605.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Almatrafi FA. Narrow-throat Pre-chamber Combustion with Ethanol, a Comparison with Methane. [Thesis]. King Abdullah University of Science and Technology; 2020. Available from: http://hdl.handle.net/10754/662605

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

King Abdullah University of Science and Technology

23. Babayev, Rafig. Hydrogen Combustion versus Diesel Isobaric Combustion in the Double Compression-Expansion Engine.

Degree: Physical Sciences and Engineering (PSE) Division, 2020, King Abdullah University of Science and Technology

URL: http://hdl.handle.net/10754/667503

► This thesis aims to contribute to the research and development of a new highly efficient split-cycle engine concept – the double compression-expansion engine (DCEE) –… (more)

▼ This thesis aims to contribute to the research and development of a new highly efficient split-cycle engine concept – the double compression-expansion engine (DCEE) – by expanding the knowledge of combustion processes suitable for this and, potentially, other modern engines, via experimental and computational studies. In this work, first, the importance of continued improvement of internal combustion engines is demonstrated by comparing the life-cycle CO2 emissions of different modes of transport, including walking and bicycling. Then, an isobaric combustion concept is proposed for use in modern high-pressure combustion engines, such as the DCEE. Isobaric combustion is compared to conventional diesel combustion at different pressure levels, fueling, and EGR rates, and shown to reduce cylinder wall heat transfer losses by 20 %, simultaneously improving the NOx emissions by a factor of two. An in-situ injection rate measurement technique is developed and applied to improve the understanding of the complex injection strategies required for isobaric combustion. It is also shown that isobaric combustion is possible to achieve with a single fuel injector, but using multiple injectors may offer additional benefits of even lower heat losses, better heat release control, and improved soot and NOx trade-off. Then, an alternative combustion system to the diesel isobaric is proposed – a hydrogen direct-injection (DI) compression-ignition (CI) combustion concept, which has the advantage of ideally eliminated CO2 and soot emissions. DICI H2 combustion is found to differ significantly from conventional diesel, most importantly, in terms of the injected and retained momentum, and in-cylinder flow patterns and fuel-air mixing. Thus, a completely different optimization path must be taken for H2 engines, which involves maximizing the free-jet mixing phase of combustion while minimizing the momentum-dominated global mixing phase. This is achieved computationally in this work by adapting the combustion chamber shape to the H2 jets and modifying the injector nozzle, which proved effective. Finally, hydrogen combustion is computationally compared to diesel in the context of the DCEE on the basis of thermodynamic system parameters and detailed energy breakdown, and proved superior. Brake thermal efficiencies in the range of 56 % are demonstrated for the entire DCEE powertrain fueled with hydrogen. Advisors/Committee Members: Johansson, Bengt (advisor), Im, Hong (committee member), Keyes, David E. (committee member), Taylor, Alex (committee member).

Subjects/Keywords: isobaric combustion; hydrogen combustion; multiple fuel injectors; DCEE; hydrogen engine; CFD

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Babayev, R. (2020). Hydrogen Combustion versus Diesel Isobaric Combustion in the Double Compression-Expansion Engine. (Thesis). King Abdullah University of Science and Technology. Retrieved from http://hdl.handle.net/10754/667503

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Babayev, Rafig. “Hydrogen Combustion versus Diesel Isobaric Combustion in the Double Compression-Expansion Engine.” 2020. Thesis, King Abdullah University of Science and Technology. Accessed April 14, 2021. http://hdl.handle.net/10754/667503.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Babayev, Rafig. “Hydrogen Combustion versus Diesel Isobaric Combustion in the Double Compression-Expansion Engine.” 2020. Web. 14 Apr 2021.

Vancouver:

Babayev R. Hydrogen Combustion versus Diesel Isobaric Combustion in the Double Compression-Expansion Engine. [Internet] [Thesis]. King Abdullah University of Science and Technology; 2020. [cited 2021 Apr 14]. Available from: http://hdl.handle.net/10754/667503.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Babayev R. Hydrogen Combustion versus Diesel Isobaric Combustion in the Double Compression-Expansion Engine. [Thesis]. King Abdullah University of Science and Technology; 2020. Available from: http://hdl.handle.net/10754/667503

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universitat Politècnica de València

24. Salvador Iborra, Josep. A contribution to the global modeling of heat transfer processes in Diesel engines .

Degree: 2020, Universitat Politècnica de València

URL: http://hdl.handle.net/10251/149575

► [EN] Current challenges in research and development of powertrains demand new computational tools capable of simulating vehicle operation under very diverse conditions. This is due,… (more)

▼ [EN] Current challenges in research and development of powertrains demand new computational tools capable of simulating vehicle operation under very diverse conditions. This is due, among other reasons, to new homologation standards in the automotive sector requiring compliance of exhaust emissions regulations under any possible driving condition on the road. Global engine or vehicle models provide many advantages to engineers because they allow to reproduce the entire system under study, considering the physical processes that take place in different components and the interactions among them. This thesis aims to enable the modeling of heat transfer processes in a complete engine simulation tool developed at CMT-Motores Térmicos research institute. This 0D/1D simulation tool is called Virtual Engine Model (VEMOD). The development of heat transfer models comprises the engine block and the ancillary systems. The model of heat transfer in the engine block deals with the central problem of in-cylinder convection by means of a combination of experimental research, CFD simulation and multizone 0D modeling. The other thermal processes present in the engine block are examined in order to implement suitable submodels. Once the model is complete, it undergoes a validation with experimental transient tests. Afterwards, the ancillary systems for engine thermal management are brought into focus. These systems are considered by means of two new models: a model of heat exchangers and a model of thermo-hydraulic circuits. The development of those models is reported in detail. Lastly, with the referred thermal models integrated in the global simulation tool, a validation study is undertaken. The goal is to validate the ability of the Virtual Engine Model to capture the thermal response of a real engine under various operating conditions. To achieve that, an experimental campaign combining tests under steady-state operation, under transient operation and at different temperatures is conducted in parallel to the corresponding simulation campaign. The capacity of the global engine simulations to replicate the measured thermal evolution is finally demonstrated. Advisors/Committee Members: Olmeda González, Pablo Cesar (advisor).

Subjects/Keywords: Heat transfer; Internal combustion engine; Diesel engine; In-cylinder heat rejection; Thermal management; Global engine model; Virtual engine model

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Salvador Iborra, J. (2020). A contribution to the global modeling of heat transfer processes in Diesel engines . (Doctoral Dissertation). Universitat Politècnica de València. Retrieved from http://hdl.handle.net/10251/149575

Chicago Manual of Style (16^th Edition):

Salvador Iborra, Josep. “A contribution to the global modeling of heat transfer processes in Diesel engines .” 2020. Doctoral Dissertation, Universitat Politècnica de València. Accessed April 14, 2021. http://hdl.handle.net/10251/149575.

MLA Handbook (7^th Edition):

Salvador Iborra, Josep. “A contribution to the global modeling of heat transfer processes in Diesel engines .” 2020. Web. 14 Apr 2021.

Vancouver:

Salvador Iborra J. A contribution to the global modeling of heat transfer processes in Diesel engines . [Internet] [Doctoral dissertation]. Universitat Politècnica de València; 2020. [cited 2021 Apr 14]. Available from: http://hdl.handle.net/10251/149575.

Council of Science Editors:

Salvador Iborra J. A contribution to the global modeling of heat transfer processes in Diesel engines . [Doctoral Dissertation]. Universitat Politècnica de València; 2020. Available from: http://hdl.handle.net/10251/149575

University of Alabama

25. Williams, Larry Justin. Passive mitigation of combustion noise and thermo-acoustic instability using porous inert media at elevated pressure.

Degree: 2012, University of Alabama

URL: http://purl.lib.ua.edu/55100

► Combustion instabilities have presented major problems in high-pressure, turbulent combustion systems for nearly a century, beginning with rocket propulsion systems. To enhance combustion efficiencies, other… (more)

▼ Combustion instabilities have presented major problems in high-pressure, turbulent combustion systems for nearly a century, beginning with rocket propulsion systems. To enhance combustion efficiencies, other engines, such as gas turbines for power generation, operate at high pressures and reactant flow rates that are only small relative to those of rocket engine operation. The majority of power generation systems today extract energy from such efficient combustion processes. Recently, gas turbine engines, both power generation and propulsion platforms, are operated under very lean conditions to reduce flame temperatures and thus, emissions of the primary smog forming constituent, NOx. Extinction, flashback, blowoff , and autoignition pose challenges when operating at lean-premixed conditions. Flame stability at such lean conditions is problematic; thus, a swirled flow method is used to anchor and stabilize these flames. Intense turbulence, resulting from the pressure drop across flow swirlers, drives fluctuations in pressure and heat release rate. The feedback between pressure oscillations and heat release fluctuations in the reaction zone often drives resonant instabilities that propagate through the flow and surrounding structures. Such self-excited instabilities influence high rates of heat release in the reaction zone, which is located near the point of injection. Vibrations and high temperatures lead to the fatigue of injection components, instrumentation, and downstream turbine blades. A novel passive combustion noise control technique is experimentally investigated in the present study. The approach involves the mating of a porous inert material (PIM) with the inlet of a swirl-stabilized, lean-premixed combustor. The foam insert reduces turbulent intensities within the inner and outer recirculation zones of a common swirl-stabilized burner, thus reducing the amplitude of combustion driven instabilities. Experiments are conducted at high pressures, with high reactant flow rates and equivalence ratios. Results show that the ceramic foam insert is effective at mitigating combustion instabilities, suppressing combustion noise, and potentially, acoustic damping. The total sound pressure level for many of the cases investigated is reduced by 10 dB and greater. Furthermore, the approach can easily be retrofitted to commercial, industrial, and propulsion gas turbine combustion systems. (Published By University of Alabama Libraries) Advisors/Committee Members: Agrawal, Ajay K., Schreiber, Willard, Lang, Amy, Taylor, Bob, University of Alabama. Dept. of Mechanical Engineering.

Subjects/Keywords: Electronic Thesis or Dissertation; – thesis; Mechanical engineering; Aerospace engineering; Combustion instability; Combustion Noise; gas turbine engine; high pressure combustion; turbulent combustion

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Williams, L. J. (2012). Passive mitigation of combustion noise and thermo-acoustic instability using porous inert media at elevated pressure. (Thesis). University of Alabama. Retrieved from http://purl.lib.ua.edu/55100

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Williams, Larry Justin. “Passive mitigation of combustion noise and thermo-acoustic instability using porous inert media at elevated pressure.” 2012. Thesis, University of Alabama. Accessed April 14, 2021. http://purl.lib.ua.edu/55100.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Williams, Larry Justin. “Passive mitigation of combustion noise and thermo-acoustic instability using porous inert media at elevated pressure.” 2012. Web. 14 Apr 2021.

Vancouver:

Williams LJ. Passive mitigation of combustion noise and thermo-acoustic instability using porous inert media at elevated pressure. [Internet] [Thesis]. University of Alabama; 2012. [cited 2021 Apr 14]. Available from: http://purl.lib.ua.edu/55100.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Williams LJ. Passive mitigation of combustion noise and thermo-acoustic instability using porous inert media at elevated pressure. [Thesis]. University of Alabama; 2012. Available from: http://purl.lib.ua.edu/55100

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Michigan Technological University

26. Arora, Jayant Kumar. DESIGN OF REAL-TIME COMBUSTION FEEDBACK SYSTEM AND EXPERIMENTAL STUDY OF AN RCCI ENGINE FOR CONTROL.

Degree: MS, Department of Mechanical Engineering-Engineering Mechanics, 2016, Michigan Technological University

URL: https://digitalcommons.mtu.edu/etdr/148

► Premixed compression ignition (PCI) technologies offer high efficiency and low emissions but are usually confined by limited operation range as well as high pressure… (more)

Subjects/Keywords: Low temperature combustion; FPGA; Internal combustion engine; RCCI; combustion phasing control; Automotive Engineering; Heat Transfer, Combustion

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Arora, J. K. (2016). DESIGN OF REAL-TIME COMBUSTION FEEDBACK SYSTEM AND EXPERIMENTAL STUDY OF AN RCCI ENGINE FOR CONTROL. (Masters Thesis). Michigan Technological University. Retrieved from https://digitalcommons.mtu.edu/etdr/148

Chicago Manual of Style (16^th Edition):

Arora, Jayant Kumar. “DESIGN OF REAL-TIME COMBUSTION FEEDBACK SYSTEM AND EXPERIMENTAL STUDY OF AN RCCI ENGINE FOR CONTROL.” 2016. Masters Thesis, Michigan Technological University. Accessed April 14, 2021. https://digitalcommons.mtu.edu/etdr/148.

MLA Handbook (7^th Edition):

Arora, Jayant Kumar. “DESIGN OF REAL-TIME COMBUSTION FEEDBACK SYSTEM AND EXPERIMENTAL STUDY OF AN RCCI ENGINE FOR CONTROL.” 2016. Web. 14 Apr 2021.

Vancouver:

Arora JK. DESIGN OF REAL-TIME COMBUSTION FEEDBACK SYSTEM AND EXPERIMENTAL STUDY OF AN RCCI ENGINE FOR CONTROL. [Internet] [Masters thesis]. Michigan Technological University; 2016. [cited 2021 Apr 14]. Available from: https://digitalcommons.mtu.edu/etdr/148.

Council of Science Editors:

Arora JK. DESIGN OF REAL-TIME COMBUSTION FEEDBACK SYSTEM AND EXPERIMENTAL STUDY OF AN RCCI ENGINE FOR CONTROL. [Masters Thesis]. Michigan Technological University; 2016. Available from: https://digitalcommons.mtu.edu/etdr/148

Texas A&M University

27. Bajwa, Abdullah Umair. First and Second Law Analyses of a Large Bore Two Stroke Spark Ignition Engine Fueled with Natural Gas.

Degree: MS, Mechanical Engineering, 2016, Texas A&M University

URL: http://hdl.handle.net/1969.1/159034

► A zero dimensional thermodynamic model with no spatial resolution has been developed to analyze the effectiveness of energy and exergy utilization in a large bore,… (more)

Subjects/Keywords: Internal Combustion Engine; Exergy; Second Law Analysis; Two Stroke Engine; Two Zone Model

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Bajwa, A. U. (2016). First and Second Law Analyses of a Large Bore Two Stroke Spark Ignition Engine Fueled with Natural Gas. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/159034

Chicago Manual of Style (16^th Edition):

Bajwa, Abdullah Umair. “First and Second Law Analyses of a Large Bore Two Stroke Spark Ignition Engine Fueled with Natural Gas.” 2016. Masters Thesis, Texas A&M University. Accessed April 14, 2021. http://hdl.handle.net/1969.1/159034.

MLA Handbook (7^th Edition):

Bajwa, Abdullah Umair. “First and Second Law Analyses of a Large Bore Two Stroke Spark Ignition Engine Fueled with Natural Gas.” 2016. Web. 14 Apr 2021.

Vancouver:

Bajwa AU. First and Second Law Analyses of a Large Bore Two Stroke Spark Ignition Engine Fueled with Natural Gas. [Internet] [Masters thesis]. Texas A&M University; 2016. [cited 2021 Apr 14]. Available from: http://hdl.handle.net/1969.1/159034.

Council of Science Editors:

Bajwa AU. First and Second Law Analyses of a Large Bore Two Stroke Spark Ignition Engine Fueled with Natural Gas. [Masters Thesis]. Texas A&M University; 2016. Available from: http://hdl.handle.net/1969.1/159034

Lithuanian University of Agriculture

28. Sprindžiūnas, Gintaras. Aplinkos akustinės taršos tyrimas dirbant traktoriui nenusistovėjusiame režime.

Degree: Master, Mechanical Engineering, 2009, Lithuanian University of Agriculture

URL: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2008~D_20090114_154815-40333 ;

►

Tikslas. Nustatyti traktoriaus apkrovų ir greitinio režimo transporto darbuose įtaką garso slėgio lygiui atskiruose garso lauko taškuose. Didžiausią triukšmą į aplinką skleidžia stovintis traktorius MTZ-80UK.… (more)

Subjects/Keywords: Traktorius; Triukšmo lygis; Vidaus degimo variklis; Įsibėgėjimas; Tractor; Noise level; Internal-combustion engine; Engine racing

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Sprindžiūnas, Gintaras. (2009). Aplinkos akustinės taršos tyrimas dirbant traktoriui nenusistovėjusiame režime. (Masters Thesis). Lithuanian University of Agriculture. Retrieved from http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2008~D_20090114_154815-40333 ;

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Chicago Manual of Style (16^th Edition):

Sprindžiūnas, Gintaras. “Aplinkos akustinės taršos tyrimas dirbant traktoriui nenusistovėjusiame režime.” 2009. Masters Thesis, Lithuanian University of Agriculture. Accessed April 14, 2021. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2008~D_20090114_154815-40333 ;.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

MLA Handbook (7^th Edition):

Sprindžiūnas, Gintaras. “Aplinkos akustinės taršos tyrimas dirbant traktoriui nenusistovėjusiame režime.” 2009. Web. 14 Apr 2021.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Vancouver:

Sprindžiūnas, Gintaras. Aplinkos akustinės taršos tyrimas dirbant traktoriui nenusistovėjusiame režime. [Internet] [Masters thesis]. Lithuanian University of Agriculture; 2009. [cited 2021 Apr 14]. Available from: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2008~D_20090114_154815-40333 ;.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Council of Science Editors:

Sprindžiūnas, Gintaras. Aplinkos akustinės taršos tyrimas dirbant traktoriui nenusistovėjusiame režime. [Masters Thesis]. Lithuanian University of Agriculture; 2009. Available from: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2008~D_20090114_154815-40333 ;

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Wayne State University

29. Lee, Po-I. Combustion Visualization And Particulate Matter Emission Of A Gdi Engine By Using Gasoline And E85.

Degree: PhD, Mechanical Engineering, 2014, Wayne State University

URL: https://digitalcommons.wayne.edu/oa_dissertations/897

► In order to increase engine efficiency as well as to reduce emission, optimizing combustion is always the challenge in research and product development. Gasoline… (more)

▼ In order to increase engine efficiency as well as to reduce emission, optimizing combustion is always the challenge in research and product development. Gasoline direct injection (GDI) engines have been popularized due to its higher power density, fuel efficiency, and the possibility for advanced engine technologies over conventional port-fuel-injection (PFI) gasoline engines. However, many issues are heavily investigated, such as air-fuel mixing preparation, fuel wall-wetting, higher HC and PM emissions, catalytic convertor efficiency, knocking, and pre-ignition. Besides, advanced technologies represent higher production cost. Because of the limited resource of petroleum-based fuels, ethanol is deemed as the alternative fuel for gasoline due to its availability, renewability, and fuel properties. It is also known for its lower energy content (LHV ~ 27 MJ/kg) that the fuel economy would decrease if such a fuel is used. Besides that, lower HC, CO, NOX, and PM emissions may be achieved with the presence of ethanol in fuel. The present study is focused on visualizing GDI combustion with different fuels (E0 and E85) along with engine-out emission measurement specially focusing on PM emission. Different engine operation conditions are taken into consideration to study the effects on engine performance in terms of engine start-up, combustion quality and variation, and engine-out emission. High speed imaging techniques are used for visualizing the combustion process, and high speed emission measurement devices are used for engine-out emission study. PM emission is the primary focus in the current study on emissions with the assistance of in-cylinder visualization to identify the location of diffusion flame where the soot is formed. CFD modeling is also implemented to analyze the air-fuel mixture preparation as well as the combustion process. The results indicate that the combustion process may not be ideal under certain operating conditions. By various image processing techniques, it is found that the flame kernel development could be either too slow or too heterogeneous. Fuel wall impingement is also found that pool fire is in inevitable in some cases that HC, CO, and PM emissions are high. Injection timing, ignition timing, and air-fuel ratio are the three primary factors that need to be carefully controlled for engine calibration in order to achieve higher efficiency and lower emissions. Some advanced technologies, e.g. one-valve deactivation, may not be ideal at certain speed and load. The use of alternative fuel could reduce PM emission in mass, but the particle number could sometimes be higher than using E0. The CFD simulation also validates the similar results found from the experiments. Advisors/Committee Members: Ming-Chia Lai.

Subjects/Keywords: alternative fuel; combustion visualization; GDI engine; optical engine; PM emission; Mechanical Engineering; Other Mechanical Engineering

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lee, P. (2014). Combustion Visualization And Particulate Matter Emission Of A Gdi Engine By Using Gasoline And E85. (Doctoral Dissertation). Wayne State University. Retrieved from https://digitalcommons.wayne.edu/oa_dissertations/897

Chicago Manual of Style (16^th Edition):

Lee, Po-I. “Combustion Visualization And Particulate Matter Emission Of A Gdi Engine By Using Gasoline And E85.” 2014. Doctoral Dissertation, Wayne State University. Accessed April 14, 2021. https://digitalcommons.wayne.edu/oa_dissertations/897.

MLA Handbook (7^th Edition):

Lee, Po-I. “Combustion Visualization And Particulate Matter Emission Of A Gdi Engine By Using Gasoline And E85.” 2014. Web. 14 Apr 2021.

Vancouver:

Lee P. Combustion Visualization And Particulate Matter Emission Of A Gdi Engine By Using Gasoline And E85. [Internet] [Doctoral dissertation]. Wayne State University; 2014. [cited 2021 Apr 14]. Available from: https://digitalcommons.wayne.edu/oa_dissertations/897.

Council of Science Editors:

Lee P. Combustion Visualization And Particulate Matter Emission Of A Gdi Engine By Using Gasoline And E85. [Doctoral Dissertation]. Wayne State University; 2014. Available from: https://digitalcommons.wayne.edu/oa_dissertations/897

University of Illinois – Urbana-Champaign

30. Winijkul, Ekbordin. Multinational emission inventories for land-based nonroad engines and residential combustion.

Degree: PhD, Environ Engr in Civil Engr, 2015, University of Illinois – Urbana-Champaign

URL: http://hdl.handle.net/2142/78373

► Current and future emission projections for use in large-scale atmospheric models are necessary in determining policies or mitigation options that will be implemented to mitigate… (more)

▼ Current and future emission projections for use in large-scale atmospheric models are necessary in determining policies or mitigation options that will be implemented to mitigate air pollution problem and climate impacts. Nonroad engines and residential combustion contribute a large fraction of total pollutants on regional and global scales. However, regional and global emission inventories for these two sectors have been previously developed based on simple calculations which do not reflect plausible causes of technology choice and evolution of technology in each region. This dissertation focuses on emissions in these two categories because the emission contributions are relatively large and the methodologies of emission inventory development can be significantly improved. Global emission inventories of nonroad engines used in agriculture, construction and mining, and industry are developed for the period between 2010 and 2050. The SPEW-Trend model, which describes vehicle fleets in term of engine types and ages, technology, retirement rates, and high emitters (“superemitters”) is used to estimate global emission. Future fuel consumption from a macroeconomic model is used to drive engine population in SPEW-Trend to ensure that emission estimation is consistent with future greenhouse gas emission scenarios. While other regional emission inventories use fleet-averaged emission factors to estimate emission, total emission in this study is calculated based on emission factors that relate to engine types, technology (emission standard), and engine age. Global emission projections of nonroad engines from 2010 to 2050 were developed under four future scenarios. Particulate matter (PM), oxides of nitrogen (NOx), and black carbon (BC) decrease while carbon monoxide (CO) and hydrocarbon (HC) increase during the projection period for all scenarios. Organic carbon (OC), however, shows an increase in emission in one, but decreases in other scenarios. In 2050, most of the fuels are used in the cleanest engines available in all regions, except in Africa where progress in emission standards is much slower than other regions. The fraction of emission from superemitters is large in all regions in 2050, for all pollutants except NOx, PM and BC in some regions. These projections are highly sensitive to emission factors and retirement rates, and changing gasoline engine population and the year at which emission standards are implemented also significantly affect emission. In the residential sector, major activities that rely on combustion are cooking and heating, and fuels ranging from traditional (wood) to modern (natural gas, or electricity) are used. Regions with high biomass consumption are included in this study: Asia, Africa, and Latin America. A distribution method was developed to apportion national-level residential fuel consumption among five land types (urban, electrified rural with forest access, electrified rural without forest access, non-electrified rural with forest access, and non-electrified rural without… Advisors/Committee Members: Bond, Tami (advisor), Bond, Tami (Committee Chair), Rood, Mark J. (committee member), Hansen, Alan (committee member), Ouyang, Yanfeng (committee member).

Subjects/Keywords: Emission inventory; Nonroad engine; Engine population model; Residential combustion; Cooking stove; Heating stove; Stove standard

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Winijkul, E. (2015). Multinational emission inventories for land-based nonroad engines and residential combustion. (Doctoral Dissertation). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/78373

Chicago Manual of Style (16^th Edition):

Winijkul, Ekbordin. “Multinational emission inventories for land-based nonroad engines and residential combustion.” 2015. Doctoral Dissertation, University of Illinois – Urbana-Champaign. Accessed April 14, 2021. http://hdl.handle.net/2142/78373.

MLA Handbook (7^th Edition):

Winijkul, Ekbordin. “Multinational emission inventories for land-based nonroad engines and residential combustion.” 2015. Web. 14 Apr 2021.

Vancouver:

Winijkul E. Multinational emission inventories for land-based nonroad engines and residential combustion. [Internet] [Doctoral dissertation]. University of Illinois – Urbana-Champaign; 2015. [cited 2021 Apr 14]. Available from: http://hdl.handle.net/2142/78373.

Council of Science Editors:

Winijkul E. Multinational emission inventories for land-based nonroad engines and residential combustion. [Doctoral Dissertation]. University of Illinois – Urbana-Champaign; 2015. Available from: http://hdl.handle.net/2142/78373

Open Access Theses and Dissertations