subject:(Fuel Injector)

University of Waterloo

1. Saha, Kaushik. Modelling of cavitation in nozzles for diesel injection applications.

Degree: 2014, University of Waterloo

► Extreme low pressure regions develop in the high pressure direct injection fuel flow inside the fuel injector holes, compelling the liquid fuel to transform to… (more)

▼ Extreme low pressure regions develop in the high pressure direct injection fuel flow inside the fuel injector holes, compelling the liquid fuel to transform to vapour phase in the form of vapour cavities or bubbles, a phenomenon known as cavitation. The cavitation phenomenon determines the quality of primary atomization and hence a ffects the performance of direct injection diesel or gasoline engines. A cavitation model, coupled with the mixture multiphase approach and RNG k-e turbulence model, has been developed and implemented in this study for analysing cavitation. The cavitation model has been implemented in ANSYS Fluent platform. The model predictions have been compared with results from experimental works available in the literature. A good agreement of the model predictions has been observed. Comparisons of the model with other cavitation models (Schnerr & Sauer and Zwart-Gerber-Belamri) available in ANSYS Fluent have been carried out with both mixture and Eulerian-Eulerian multiphase approaches. The overall performance of the proposed model in comparison with other models has been observed to be more eff ective. The model has been further applied to diesel vs. biodiesel cavitation as biofuels are the greener alternatives of conventional fossil fuels in recent times. Additionally eff ects of property di erences between diesel and biodiesel, inlet pressure fluctuations have been investigated. Liquid phase viscosity has been observed to be the determining parameter amongst all the properties for cavitation characteristics. The present study has also assessed the relevance of following factors for the case of cavitation in diesel injectors : a) compressibility, b) stress of a flowing liquid, c) wall roughness and d) turbulence. The two phase flow passes through the nozzle at very high velocities and hence can no longer be considered incompressible. Stress can aff ect the inception of cavitation as the liquid under considerable stress can fail and then rupture to form cavities. In the real nozzles at microscopic levels there are always some non-uniformities or crevices that can aggravate cavitation and hence its importance should be assessed. The flow passage inside the injector is small enough to have high enough Reynolds number to get a turbulent flow. Moreover the turbulent fluctuations can cause drastic drop in the local pressure, even though the mean thermodynamic pressure is higher than the saturation pressure, causing unexpected cavitation. Parametric studies indicate that the compressibility becomes important at high pressure diff erences and e ffects of stress and turbulent pressure fluctuations are not significant for cavitation in diesel injectors. The eff ect of the inlet pressure fluctuation has also been assessed for diesel and biodiesel. Diesel appears to be more susceptible to pressure fluctuations compared to biodiesel due to the di fference in the viscosity. The developed cavitation model has been fi nally implemented to simulate cavitation in the complex geometry of a real…

Subjects/Keywords: cavitation; fuel injector; nozzle; single-fluid; bubbles

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APA (6^th Edition):

Saha, K. (2014). Modelling of cavitation in nozzles for diesel injection applications. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/8628

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):

Saha, Kaushik. “Modelling of cavitation in nozzles for diesel injection applications.” 2014. Thesis, University of Waterloo. Accessed March 04, 2021. http://hdl.handle.net/10012/8628.

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

MLA Handbook (7^th Edition):

Saha, Kaushik. “Modelling of cavitation in nozzles for diesel injection applications.” 2014. Web. 04 Mar 2021.

Vancouver:

Saha K. Modelling of cavitation in nozzles for diesel injection applications. [Internet] [Thesis]. University of Waterloo; 2014. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/10012/8628.

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

Council of Science Editors:

Saha K. Modelling of cavitation in nozzles for diesel injection applications. [Thesis]. University of Waterloo; 2014. Available from: http://hdl.handle.net/10012/8628

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

University of Toronto

2. Nouraei, Hirmand. Design and Development of a Direct-acting Piezoelectric Fuel Injector.

Degree: 2012, University of Toronto

URL: http://hdl.handle.net/1807/33480

►

Manufacturers face the challenge of enhancing fuel efficiency, engine performance, and reducing harmful emissions. Novel fuel injection technologies can assist in meeting such demands. This… (more)

Subjects/Keywords: Piezoelectric; Fuel injector; Diesel Engine; 0548

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APA (6^th Edition):

Nouraei, H. (2012). Design and Development of a Direct-acting Piezoelectric Fuel Injector. (Masters Thesis). University of Toronto. Retrieved from http://hdl.handle.net/1807/33480

Chicago Manual of Style (16^th Edition):

Nouraei, Hirmand. “Design and Development of a Direct-acting Piezoelectric Fuel Injector.” 2012. Masters Thesis, University of Toronto. Accessed March 04, 2021. http://hdl.handle.net/1807/33480.

MLA Handbook (7^th Edition):

Nouraei, Hirmand. “Design and Development of a Direct-acting Piezoelectric Fuel Injector.” 2012. Web. 04 Mar 2021.

Vancouver:

Nouraei H. Design and Development of a Direct-acting Piezoelectric Fuel Injector. [Internet] [Masters thesis]. University of Toronto; 2012. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/1807/33480.

Council of Science Editors:

Nouraei H. Design and Development of a Direct-acting Piezoelectric Fuel Injector. [Masters Thesis]. University of Toronto; 2012. Available from: http://hdl.handle.net/1807/33480

University of Toronto

3. Liu, Zhao. Chemical Kinetic and Thermal Numerical Simulation of Coking Process of Jet Fuels in Thin Nozzle Sections within Autoxidation Temperature Regime.

Degree: 2014, University of Toronto

URL: http://hdl.handle.net/1807/68076

►

The autoxidation and deposition process of air saturated Jet A-1 was simulated for injection nozzle-like test sections with preheated fuel in the range of autoxidation… (more)

Subjects/Keywords: autoxidation; coking; injector nozzle; jet fuel; numerical simulation; thermal stability; 0538

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APA (6^th Edition):

Liu, Z. (2014). Chemical Kinetic and Thermal Numerical Simulation of Coking Process of Jet Fuels in Thin Nozzle Sections within Autoxidation Temperature Regime. (Masters Thesis). University of Toronto. Retrieved from http://hdl.handle.net/1807/68076

Chicago Manual of Style (16^th Edition):

Liu, Zhao. “Chemical Kinetic and Thermal Numerical Simulation of Coking Process of Jet Fuels in Thin Nozzle Sections within Autoxidation Temperature Regime.” 2014. Masters Thesis, University of Toronto. Accessed March 04, 2021. http://hdl.handle.net/1807/68076.

MLA Handbook (7^th Edition):

Liu, Zhao. “Chemical Kinetic and Thermal Numerical Simulation of Coking Process of Jet Fuels in Thin Nozzle Sections within Autoxidation Temperature Regime.” 2014. Web. 04 Mar 2021.

Vancouver:

Liu Z. Chemical Kinetic and Thermal Numerical Simulation of Coking Process of Jet Fuels in Thin Nozzle Sections within Autoxidation Temperature Regime. [Internet] [Masters thesis]. University of Toronto; 2014. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/1807/68076.

Council of Science Editors:

Liu Z. Chemical Kinetic and Thermal Numerical Simulation of Coking Process of Jet Fuels in Thin Nozzle Sections within Autoxidation Temperature Regime. [Masters Thesis]. University of Toronto; 2014. Available from: http://hdl.handle.net/1807/68076

Iowa State University

4. Ryon, Jason Allen. Analysis and design of lean direct injection fuel nozzles by eddy resolved turbulence simulation.

Degree: 2016, Iowa State University

URL: https://lib.dr.iastate.edu/etd/16006

► Combustion systems in gas turbine engines are subjected to particular scrutiny in regards to the emissions which they produce. Of special interest are the emissions… (more)

Subjects/Keywords: CFD; fuel injector; gas turbine engine; turbulence; Aerospace Engineering

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APA (6^th Edition):

Ryon, J. A. (2016). Analysis and design of lean direct injection fuel nozzles by eddy resolved turbulence simulation. (Thesis). Iowa State University. Retrieved from https://lib.dr.iastate.edu/etd/16006

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):

Ryon, Jason Allen. “Analysis and design of lean direct injection fuel nozzles by eddy resolved turbulence simulation.” 2016. Thesis, Iowa State University. Accessed March 04, 2021. https://lib.dr.iastate.edu/etd/16006.

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

MLA Handbook (7^th Edition):

Ryon, Jason Allen. “Analysis and design of lean direct injection fuel nozzles by eddy resolved turbulence simulation.” 2016. Web. 04 Mar 2021.

Vancouver:

Ryon JA. Analysis and design of lean direct injection fuel nozzles by eddy resolved turbulence simulation. [Internet] [Thesis]. Iowa State University; 2016. [cited 2021 Mar 04]. Available from: https://lib.dr.iastate.edu/etd/16006.

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

Council of Science Editors:

Ryon JA. Analysis and design of lean direct injection fuel nozzles by eddy resolved turbulence simulation. [Thesis]. Iowa State University; 2016. Available from: https://lib.dr.iastate.edu/etd/16006

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

University of Toronto

5. Liang, Jason Jian. Design and Development of an Experimental Apparatus to Study Jet Fuel Coking in Small Gas Turbine Fuel Nozzles.

Degree: 2013, University of Toronto

URL: http://hdl.handle.net/1807/43080

►

An experimental apparatus was designed and built to study the thermal autoxidative carbon deposition, or coking, in the fuel injection nozzles of small gas turbine… (more)

Subjects/Keywords: jet fuel; fossil fuel; thermal stability; gas turbine; coking; injector nozzle; pressure drop; engine; 0538

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APA (6^th Edition):

Liang, J. J. (2013). Design and Development of an Experimental Apparatus to Study Jet Fuel Coking in Small Gas Turbine Fuel Nozzles. (Masters Thesis). University of Toronto. Retrieved from http://hdl.handle.net/1807/43080

Chicago Manual of Style (16^th Edition):

Liang, Jason Jian. “Design and Development of an Experimental Apparatus to Study Jet Fuel Coking in Small Gas Turbine Fuel Nozzles.” 2013. Masters Thesis, University of Toronto. Accessed March 04, 2021. http://hdl.handle.net/1807/43080.

MLA Handbook (7^th Edition):

Liang, Jason Jian. “Design and Development of an Experimental Apparatus to Study Jet Fuel Coking in Small Gas Turbine Fuel Nozzles.” 2013. Web. 04 Mar 2021.

Vancouver:

Liang JJ. Design and Development of an Experimental Apparatus to Study Jet Fuel Coking in Small Gas Turbine Fuel Nozzles. [Internet] [Masters thesis]. University of Toronto; 2013. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/1807/43080.

Council of Science Editors:

Liang JJ. Design and Development of an Experimental Apparatus to Study Jet Fuel Coking in Small Gas Turbine Fuel Nozzles. [Masters Thesis]. University of Toronto; 2013. Available from: http://hdl.handle.net/1807/43080

University of Illinois – Urbana-Champaign

6. Wigg, Benjamin R. A study on the emissions of butanol using a spark ignition engine and their reduction using electrostatically assisted injection.

Degree: MS, 0133, 2011, University of Illinois – Urbana-Champaign

URL: http://hdl.handle.net/2142/24172

► Butanol is a potential alternative to ethanol and offers many benefits including a much higher heating value and lower latent heat of vaporization. It also… (more)

▼ Butanol is a potential alternative to ethanol and offers many benefits including a much higher heating value and lower latent heat of vaporization. It also has a higher cetane number than ethanol and improved miscibility in diesel fuel. Additionally, butanol is less corrosive and less prone to water absorption than ethanol, which allows it to be transported using the existing fuel supply pipelines. However, while some previous research on the emissions of butanol-gasoline blends is available, little research exists on the emissions of neat butanol. This thesis focuses on two areas of study. The first area relates to on the comparison of UHC, NOx, and CO emissions of several butanol-gasoline and ethanol-gasoline blended fuels during combustion in an SI engine. The objective was to compare the emissions of butanol combustion to the ones of ethanol and gasoline. The second part of the study relates to the use of electrostatically assisted injection as a means of reducing the UHC emissions of butanol by decreasing the fuel droplet size using a charge electrode and extraction ring designed for a port fuel injector. Emissions measurements taken with and without a charge applied to the injector were used to determine the effect of applying a voltage to the fuel spray on engine emissions. It was established that the UHC emissions of neat butanol were approximately double the UHC emissions of gasoline and were appreciably higher than ethanol. CO emissions decreased and NOx emissions increased as the amount of butanol in gasoline was increased. Additionally, the CO emissions of butanol were lower than ethanol while it was not clear whether butanol had increased or decreased NOx emissions. It was also established that addition of 25% ethanol to butanol resulted in UHC emissions that were approximately 33% higher than those of neat butanol despite ethanol producing approximately 33% less UHC emissions than butanol. The results of the electrostatically assisted injection tests showed that, at certain engine operating conditions, application of 2000 V to the fuel spray resulted in a 10% increase in peak cylinder pressure, 4% reduction in UHC emissions, a 13.5% increase in NOx emissions, and a 13.5% reduction in CO emissions, which is consistent with the hypothesis that the voltage increased fuel atomization. However, tests at lower engine loads showed results contradictory to those at the higher engine load which suggested that the fuel droplet size may vary depending on engine operating conditions. Advisors/Committee Members: Kyritsis, Dimitrios C. (advisor).

Subjects/Keywords: Butanol; Electrospray; Spark Ignition (SI) Engine; Electrostatic Injection; Alternative Fuels; Fuel Spray; Fuel Injector; Ethanol

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APA (6^th Edition):

Wigg, B. R. (2011). A study on the emissions of butanol using a spark ignition engine and their reduction using electrostatically assisted injection. (Thesis). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/24172

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):

Wigg, Benjamin R. “A study on the emissions of butanol using a spark ignition engine and their reduction using electrostatically assisted injection.” 2011. Thesis, University of Illinois – Urbana-Champaign. Accessed March 04, 2021. http://hdl.handle.net/2142/24172.

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

MLA Handbook (7^th Edition):

Wigg, Benjamin R. “A study on the emissions of butanol using a spark ignition engine and their reduction using electrostatically assisted injection.” 2011. Web. 04 Mar 2021.

Vancouver:

Wigg BR. A study on the emissions of butanol using a spark ignition engine and their reduction using electrostatically assisted injection. [Internet] [Thesis]. University of Illinois – Urbana-Champaign; 2011. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/2142/24172.

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

Council of Science Editors:

Wigg BR. A study on the emissions of butanol using a spark ignition engine and their reduction using electrostatically assisted injection. [Thesis]. University of Illinois – Urbana-Champaign; 2011. Available from: http://hdl.handle.net/2142/24172

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

Uppsala University

7. Bergstrand, David. Investigation of Internal Diesel Injector Deposits on fuel injector performance for proposal of injector test rig test method.

Degree: Electricity, 2020, Uppsala University

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-417012

► With increasing demands for lowering emissions from diesel engines, bio fuel has been introduced to the fuel mixture. This fuel is based on vegetable… (more)

Subjects/Keywords: Internal Diesel Injector Deposits; IDID; Injector; Fuel system; Injector performance; Fluid Mechanics and Acoustics; Strömningsmekanik och akustik; Engineering and Technology; Teknik och teknologier

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APA (6^th Edition):

Bergstrand, D. (2020). Investigation of Internal Diesel Injector Deposits on fuel injector performance for proposal of injector test rig test method. (Thesis). Uppsala University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-417012

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):

Bergstrand, David. “Investigation of Internal Diesel Injector Deposits on fuel injector performance for proposal of injector test rig test method.” 2020. Thesis, Uppsala University. Accessed March 04, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-417012.

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

MLA Handbook (7^th Edition):

Bergstrand, David. “Investigation of Internal Diesel Injector Deposits on fuel injector performance for proposal of injector test rig test method.” 2020. Web. 04 Mar 2021.

Vancouver:

Bergstrand D. Investigation of Internal Diesel Injector Deposits on fuel injector performance for proposal of injector test rig test method. [Internet] [Thesis]. Uppsala University; 2020. [cited 2021 Mar 04]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-417012.

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

Council of Science Editors:

Bergstrand D. Investigation of Internal Diesel Injector Deposits on fuel injector performance for proposal of injector test rig test method. [Thesis]. Uppsala University; 2020. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-417012

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

Purdue University

8. Feddema, Rick Thomas. Effect of Aviation Fuel Type and Fuel Injection Conditions on the Spray Characteristics of Pressure Swirl and Hybrid Air Blast Fuel Injectors.

Degree: MSME, Mechanical Engineering, 2013, Purdue University

URL: http://docs.lib.purdue.edu/open_access_theses/12

► Feddema, Rick T. M.S.M.E., Purdue University, December 2013. Effect of Aviation Fuel Type and Fuel Injection Conditions on the Spray Characteristics of Pressure Swirl… (more)

Subjects/Keywords: Ambient Pressure; Aviation Fuel; Fuel Injector; Injection Temperature; Pressure Swirl; Twin Fluid; Aerospace Engineering; Mechanical Engineering

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APA (6^th Edition):

Feddema, R. T. (2013). Effect of Aviation Fuel Type and Fuel Injection Conditions on the Spray Characteristics of Pressure Swirl and Hybrid Air Blast Fuel Injectors. (Thesis). Purdue University. Retrieved from http://docs.lib.purdue.edu/open_access_theses/12

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):

Feddema, Rick Thomas. “Effect of Aviation Fuel Type and Fuel Injection Conditions on the Spray Characteristics of Pressure Swirl and Hybrid Air Blast Fuel Injectors.” 2013. Thesis, Purdue University. Accessed March 04, 2021. http://docs.lib.purdue.edu/open_access_theses/12.

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

MLA Handbook (7^th Edition):

Feddema, Rick Thomas. “Effect of Aviation Fuel Type and Fuel Injection Conditions on the Spray Characteristics of Pressure Swirl and Hybrid Air Blast Fuel Injectors.” 2013. Web. 04 Mar 2021.

Vancouver:

Feddema RT. Effect of Aviation Fuel Type and Fuel Injection Conditions on the Spray Characteristics of Pressure Swirl and Hybrid Air Blast Fuel Injectors. [Internet] [Thesis]. Purdue University; 2013. [cited 2021 Mar 04]. Available from: http://docs.lib.purdue.edu/open_access_theses/12.

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

Council of Science Editors:

Feddema RT. Effect of Aviation Fuel Type and Fuel Injection Conditions on the Spray Characteristics of Pressure Swirl and Hybrid Air Blast Fuel Injectors. [Thesis]. Purdue University; 2013. Available from: http://docs.lib.purdue.edu/open_access_theses/12

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

9. Bayraktar, Tuba. Investigation of Port Fuel Injector Spray Mass Distribution by Laser Induced Fluorescence.

Degree: PhD, Mechanical Engineering, 2002, Old Dominion University

URL: 9780493883106 ; https://digitalcommons.odu.edu/mae_etds/111

► Modern internal combustion engines have stringent requirements for performance and reduced toxic emissions. The fuel delivery system, and particularly the fuel injectors, have a… (more)

▼ Modern internal combustion engines have stringent requirements for performance and reduced toxic emissions. The fuel delivery system, and particularly the fuel injectors, have a vital role in reducing unburned hydrocarbons (HC) and carbon monoxide (CO) in exhaust emission. The main goal of this study is to map the spatial and temporal distribution of the spray from a low-pressure gasoline fuel injector. To attain this goal, three tasks were performed: (1) the experimental investigation of the spray oscillation as functions of operating pressure and injector timing, (2) the determination of the appropriate dye/fuel combinations for one particular experimental technique, and (3) the demonstration of the capabilities of a Computational Fluid Dynamics (CFD) code, Fluent, in the dispersed two-phase flow solutions. An experimental technique, planar laser induced fluorescence (PLIF), was employed to investigate the spatial and temporal distribution of the spray mass from a set of four-hole, split-stream port fuel injectors. The spatial and temporal spray evolution in a horizontal cross-section was imaged instantaneously via detection of fluorescence intensities. The lateral displacement of the spray mass is clearly displayed in time sequence via the PLIF images, and the spray instability is shown to be sensitively dependent upon small geometric differences along the internal flow paths. In the course of a study to develop a quantitative PLIF diagnostic for the mass distribution emanating from a liquid fuel injector, spectroscopic results were assembled for certain dye/fuel solutions. Experiments were performed with combinations of hydrocarbon solvents and organic dyes. Results are presented in the form of absorption and emission spectra, including extinction coefficients with error analysis, comparisons with data in the literature, and Stokes shift estimates. A Computational Fluid Dynamics (CFD) code, Fluent, was employed to demonstrate its capabilities in the solution of dispersed two-phase flows. The dispersed two-phase flow consists of discrete elements surrounded by a continuous phase. The continuous phase equations were solved in an Eulerian reference frame. The Lagrangian approach was used to track packets of discrete phase elements. Inputs of the numerical dispersed two-phase flow model were obtained from the conditions of the PLIF experiments. Two cases were solved with the same input and boundary conditions. In the first case the spray consists of droplets with 100 μm diameter. A linear droplet diameter distribution between 40 and 100 μm was specified in the second case. Results indicate the existence of a core region with higher velocity values for both cases. The core region appears at the spray center close to the injection tip. The increase in the spray temperature towards the outlet boundary is larger for the constant droplet diameter case than the linear droplet diameter distribution case. Negligible evaporation is observed in the solution domain for both cases. Advisors/Committee Members: A. Sidney Roberts, Jr., Surendra N. Tiwari, Arthur C. Taylor, III, Amin N. Dharamsi.

Subjects/Keywords: Fuel injector; Fuel sprays; Mass distribution; Spray; Mechanical Engineering

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APA (6^th Edition):

Bayraktar, T. (2002). Investigation of Port Fuel Injector Spray Mass Distribution by Laser Induced Fluorescence. (Doctoral Dissertation). Old Dominion University. Retrieved from 9780493883106 ; https://digitalcommons.odu.edu/mae_etds/111

Chicago Manual of Style (16^th Edition):

Bayraktar, Tuba. “Investigation of Port Fuel Injector Spray Mass Distribution by Laser Induced Fluorescence.” 2002. Doctoral Dissertation, Old Dominion University. Accessed March 04, 2021. 9780493883106 ; https://digitalcommons.odu.edu/mae_etds/111.

MLA Handbook (7^th Edition):

Bayraktar, Tuba. “Investigation of Port Fuel Injector Spray Mass Distribution by Laser Induced Fluorescence.” 2002. Web. 04 Mar 2021.

Vancouver:

Bayraktar T. Investigation of Port Fuel Injector Spray Mass Distribution by Laser Induced Fluorescence. [Internet] [Doctoral dissertation]. Old Dominion University; 2002. [cited 2021 Mar 04]. Available from: 9780493883106 ; https://digitalcommons.odu.edu/mae_etds/111.

Council of Science Editors:

Bayraktar T. Investigation of Port Fuel Injector Spray Mass Distribution by Laser Induced Fluorescence. [Doctoral Dissertation]. Old Dominion University; 2002. Available from: 9780493883106 ; https://digitalcommons.odu.edu/mae_etds/111

Texas A&M University

10. Zhang, Xiaohua. Small Engine Flash Vapor JP-8 Fuel Injector Testing, Simulation and Development.

Degree: PhD, Mechanical Engineering, 2014, Texas A&M University

URL: http://hdl.handle.net/1969.1/174186

► Following U.S. Army’s single fuel initiative, Wankel rotary engines used in U.S. Army’s shadow unmanned aerial vehicles (UAVs) need to be retrofitted from running on… (more)

Subjects/Keywords: fuel injector; flash heating; JP-8; Wankel rotary engine; multi-physics modeling; spray measurement; ignition test

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APA (6^th Edition):

Zhang, X. (2014). Small Engine Flash Vapor JP-8 Fuel Injector Testing, Simulation and Development. (Doctoral Dissertation). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/174186

Chicago Manual of Style (16^th Edition):

Zhang, Xiaohua. “Small Engine Flash Vapor JP-8 Fuel Injector Testing, Simulation and Development.” 2014. Doctoral Dissertation, Texas A&M University. Accessed March 04, 2021. http://hdl.handle.net/1969.1/174186.

MLA Handbook (7^th Edition):

Zhang, Xiaohua. “Small Engine Flash Vapor JP-8 Fuel Injector Testing, Simulation and Development.” 2014. Web. 04 Mar 2021.

Vancouver:

Zhang X. Small Engine Flash Vapor JP-8 Fuel Injector Testing, Simulation and Development. [Internet] [Doctoral dissertation]. Texas A&M University; 2014. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/1969.1/174186.

Council of Science Editors:

Zhang X. Small Engine Flash Vapor JP-8 Fuel Injector Testing, Simulation and Development. [Doctoral Dissertation]. Texas A&M University; 2014. Available from: http://hdl.handle.net/1969.1/174186

11. Zhu, Jiaxin. Visualization Investigation of a Diesel-Gasoline Mixture Jet.

Degree: MS, Department of Mechanical Engineering, 2016, University of Alberta

URL: https://era.library.ualberta.ca/files/cbn999693j

► This thesis is an experimental investigation using optical methods to study atomization of fuel injectors for IC engines using a dual fuel mixture involving diesel… (more)

Subjects/Keywords: Dieseline; Blended Fuel; Diesel Injector; Visualization; Shadowgraph

…viii 4.16 Jet area plots for the three fuel blends (G0, G20, G60) on… …Different fuel effect on quasi-steady liquid length . . . . . . . . . Vapor jet penetration… …91 C.1 Vapor penetration S on G0 fuel . . . . . C.2 Vapor penetration S on G20 & G60 fuel… …C.3 Vapor area A on G0 fuel . . . . . . . . . C.4 Vapor area A on G20 & G60 fuel . . . . C… …5 Vapor jet angle θ on G0 fuel . . . . . . . C.6 Vapor jet angle θ on G20 & G60 fuel . . C…

11 more images…

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APA (6^th Edition):

Zhu, J. (2016). Visualization Investigation of a Diesel-Gasoline Mixture Jet. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/cbn999693j

Chicago Manual of Style (16^th Edition):

Zhu, Jiaxin. “Visualization Investigation of a Diesel-Gasoline Mixture Jet.” 2016. Masters Thesis, University of Alberta. Accessed March 04, 2021. https://era.library.ualberta.ca/files/cbn999693j.

MLA Handbook (7^th Edition):

Zhu, Jiaxin. “Visualization Investigation of a Diesel-Gasoline Mixture Jet.” 2016. Web. 04 Mar 2021.

Vancouver:

Zhu J. Visualization Investigation of a Diesel-Gasoline Mixture Jet. [Internet] [Masters thesis]. University of Alberta; 2016. [cited 2021 Mar 04]. Available from: https://era.library.ualberta.ca/files/cbn999693j.

Council of Science Editors:

Zhu J. Visualization Investigation of a Diesel-Gasoline Mixture Jet. [Masters Thesis]. University of Alberta; 2016. Available from: https://era.library.ualberta.ca/files/cbn999693j

Brno University of Technology

12. Duda, Martin. Palivové systémy vznětových motorů: CI-engines Fuel Systems.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/40375

► This bachelor thesis is about fuel systems, especially is focused on the injection system Common rail. The most usable injection system at this time, which… (more)

Subjects/Keywords: vznetový motor; palivová sústava; vstrekovač; Common rail – prvky systému; diesel engine; fuel system; injector; Common rail – parts of system

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APA (6^th Edition):

Duda, M. (2019). Palivové systémy vznětových motorů: CI-engines Fuel Systems. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/40375

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):

Duda, Martin. “Palivové systémy vznětových motorů: CI-engines Fuel Systems.” 2019. Thesis, Brno University of Technology. Accessed March 04, 2021. http://hdl.handle.net/11012/40375.

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

MLA Handbook (7^th Edition):

Duda, Martin. “Palivové systémy vznětových motorů: CI-engines Fuel Systems.” 2019. Web. 04 Mar 2021.

Vancouver:

Duda M. Palivové systémy vznětových motorů: CI-engines Fuel Systems. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/11012/40375.

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

Council of Science Editors:

Duda M. Palivové systémy vznětových motorů: CI-engines Fuel Systems. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/40375

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

Loughborough University

13. Slator, Duncan. Fuel injector spray diagnostic development.

Degree: PhD, 2015, Loughborough University

URL: http://hdl.handle.net/2134/17488

► New technologies are constantly developing towards the goal of increasing the performance of gas turbine engines while reducing pollutant emissions. The design of the combustion… (more)

Subjects/Keywords: 629.134; Gas turbine; Lean burn injection; Two-phase; Particle Image Velocimetry; Fuel injector aerodynamics; Test rig development

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APA (6^th Edition):

Slator, D. (2015). Fuel injector spray diagnostic development. (Doctoral Dissertation). Loughborough University. Retrieved from http://hdl.handle.net/2134/17488

Chicago Manual of Style (16^th Edition):

Slator, Duncan. “Fuel injector spray diagnostic development.” 2015. Doctoral Dissertation, Loughborough University. Accessed March 04, 2021. http://hdl.handle.net/2134/17488.

MLA Handbook (7^th Edition):

Slator, Duncan. “Fuel injector spray diagnostic development.” 2015. Web. 04 Mar 2021.

Vancouver:

Slator D. Fuel injector spray diagnostic development. [Internet] [Doctoral dissertation]. Loughborough University; 2015. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/2134/17488.

Council of Science Editors:

Slator D. Fuel injector spray diagnostic development. [Doctoral Dissertation]. Loughborough University; 2015. Available from: http://hdl.handle.net/2134/17488

University of Cincinnati

14. MEICENHEIMER, HEIDI L. INDEPENDENT STAGE CONTROL OF A CASCADE INJECTOR.

Degree: MS, Engineering : Aerospace Engineering, 2006, University of Cincinnati

URL: http://rave.ohiolink.edu/etdc/view?acc_num=ucin1155655108

► A comprehensive investigation of independent stage control as applied to a cascade injector was completed. It was experimentally demonstrated that altering the number of active… (more)

Subjects/Keywords: Engineering, Aerospace; Fuel injection; Cascade injector; Stage Control; Hypersonics

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APA (6^th Edition):

MEICENHEIMER, H. L. (2006). INDEPENDENT STAGE CONTROL OF A CASCADE INJECTOR. (Masters Thesis). University of Cincinnati. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=ucin1155655108

Chicago Manual of Style (16^th Edition):

MEICENHEIMER, HEIDI L. “INDEPENDENT STAGE CONTROL OF A CASCADE INJECTOR.” 2006. Masters Thesis, University of Cincinnati. Accessed March 04, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1155655108.

MLA Handbook (7^th Edition):

MEICENHEIMER, HEIDI L. “INDEPENDENT STAGE CONTROL OF A CASCADE INJECTOR.” 2006. Web. 04 Mar 2021.

Vancouver:

MEICENHEIMER HL. INDEPENDENT STAGE CONTROL OF A CASCADE INJECTOR. [Internet] [Masters thesis]. University of Cincinnati; 2006. [cited 2021 Mar 04]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=ucin1155655108.

Council of Science Editors:

MEICENHEIMER HL. INDEPENDENT STAGE CONTROL OF A CASCADE INJECTOR. [Masters Thesis]. University of Cincinnati; 2006. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=ucin1155655108

15. Mandokhot, Mohit Atul. Development of Predictive Gasoline Direct Fuel Injector Model for Improved In-cylinder Combustion Characterization.

Degree: MS, Mechanical Engineering, 2018, The Ohio State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu1534517269503352

► Gasoline direct fuel injection systems have gained importance due to the increasing level of emissions regulation on SI combustion systems. Direct fuel injection delivery to… (more)

Subjects/Keywords: Mechanical Engineering; Gasoline Direct Injector, 1D, 3D, Combustion, Fuel Injector, Simulation, Direct Fuel Injection

…viii List of Figures Figure 1. Gasoline Direct Fuel Injector interface with Cylinder, as… …25 Figure 10 – I/O Diagram of Gasoline Direct Fuel Injector Model… …26 Figure 11 – Gasoline Direct Fuel Injector, Subsystem Block Diagram… …problems of port fueled injection systems. A gasoline direct fuel injector enables delivery of… …determines the time for which the fuel injector is to be opened to meet desired AFR ratio. The…

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APA (6^th Edition):

Mandokhot, M. A. (2018). Development of Predictive Gasoline Direct Fuel Injector Model for Improved In-cylinder Combustion Characterization. (Masters Thesis). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1534517269503352

Chicago Manual of Style (16^th Edition):

Mandokhot, Mohit Atul. “Development of Predictive Gasoline Direct Fuel Injector Model for Improved In-cylinder Combustion Characterization.” 2018. Masters Thesis, The Ohio State University. Accessed March 04, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=osu1534517269503352.

MLA Handbook (7^th Edition):

Mandokhot, Mohit Atul. “Development of Predictive Gasoline Direct Fuel Injector Model for Improved In-cylinder Combustion Characterization.” 2018. Web. 04 Mar 2021.

Vancouver:

Mandokhot MA. Development of Predictive Gasoline Direct Fuel Injector Model for Improved In-cylinder Combustion Characterization. [Internet] [Masters thesis]. The Ohio State University; 2018. [cited 2021 Mar 04]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1534517269503352.

Council of Science Editors:

Mandokhot MA. Development of Predictive Gasoline Direct Fuel Injector Model for Improved In-cylinder Combustion Characterization. [Masters Thesis]. The Ohio State University; 2018. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1534517269503352

16. Twarog, Kyle. Investigation of a Non-Premixed Liquid Fuel Injector and Swirler Using a Purpose-Built Combustion Test Rig.

Degree: MS, Mechanical Engineering, 2018, University of Connecticut

URL: https://opencommons.uconn.edu/gs_theses/1322

► This effort presents a combustion test stand capable of conducting fundamental study of the flame region of a practical liquid fuel single element as… (more)

Subjects/Keywords: PIV PLIF Fuel Injector Spray Malvern Swirler Combustion Jet Fuel

…Fuel (Jet-A POSF10325) was supplied to the injector via a Teledyne 1000D… …Schematic Spray testing of the fuel injector was conducted using Jet-A and the Malvern analysis… …58 vii List of Tables Table 1: Jet-A Fuel Properties… …optimizations of flame parameters, air-fuel flow schemes, and fuel atomization quality among others… …supplied with fuel and air in a well-controlled laboratory environment. This allows for…

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APA (6^th Edition):

Twarog, K. (2018). Investigation of a Non-Premixed Liquid Fuel Injector and Swirler Using a Purpose-Built Combustion Test Rig. (Masters Thesis). University of Connecticut. Retrieved from https://opencommons.uconn.edu/gs_theses/1322

Chicago Manual of Style (16^th Edition):

Twarog, Kyle. “Investigation of a Non-Premixed Liquid Fuel Injector and Swirler Using a Purpose-Built Combustion Test Rig.” 2018. Masters Thesis, University of Connecticut. Accessed March 04, 2021. https://opencommons.uconn.edu/gs_theses/1322.

MLA Handbook (7^th Edition):

Twarog, Kyle. “Investigation of a Non-Premixed Liquid Fuel Injector and Swirler Using a Purpose-Built Combustion Test Rig.” 2018. Web. 04 Mar 2021.

Vancouver:

Twarog K. Investigation of a Non-Premixed Liquid Fuel Injector and Swirler Using a Purpose-Built Combustion Test Rig. [Internet] [Masters thesis]. University of Connecticut; 2018. [cited 2021 Mar 04]. Available from: https://opencommons.uconn.edu/gs_theses/1322.

Council of Science Editors:

Twarog K. Investigation of a Non-Premixed Liquid Fuel Injector and Swirler Using a Purpose-Built Combustion Test Rig. [Masters Thesis]. University of Connecticut; 2018. Available from: https://opencommons.uconn.edu/gs_theses/1322

Brno University of Technology

17. Černý, Martin. Měření charakteristiky vstřikovače zážehového motoru: Fuel injector characteristics measurement of spark-ignited engine.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/61094

► The aim of this work will be to research dealing with issues about the fuel injection petrol engines, in particular fuel injectors for engines with… (more)

Subjects/Keywords: Záţehový motor; spalovací motor; vstřikovací ventil; vstřikování; karburátor; měřící stanice; emise; Petrol engine; combustion engine; fuel injector; fuel injection; carburetor; measuring stations; emissions

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APA (6^th Edition):

Černý, M. (2019). Měření charakteristiky vstřikovače zážehového motoru: Fuel injector characteristics measurement of spark-ignited engine. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/61094

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):

Černý, Martin. “Měření charakteristiky vstřikovače zážehového motoru: Fuel injector characteristics measurement of spark-ignited engine.” 2019. Thesis, Brno University of Technology. Accessed March 04, 2021. http://hdl.handle.net/11012/61094.

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

MLA Handbook (7^th Edition):

Černý, Martin. “Měření charakteristiky vstřikovače zážehového motoru: Fuel injector characteristics measurement of spark-ignited engine.” 2019. Web. 04 Mar 2021.

Vancouver:

Černý M. Měření charakteristiky vstřikovače zážehového motoru: Fuel injector characteristics measurement of spark-ignited engine. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/11012/61094.

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

Council of Science Editors:

Černý M. Měření charakteristiky vstřikovače zážehového motoru: Fuel injector characteristics measurement of spark-ignited engine. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/61094

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

18. Štrucl, Jure. Obravnava zaprtega stanja igle med posameznimi vbrizgi v dizelskem injektorju.

Degree: 2013, Univerza v Mariboru

URL: https://dk.um.si/IzpisGradiva.php?id=42965 ; https://dk.um.si/Dokument.php?id=60505&dn= ; https://plus.si.cobiss.net/opac7/bib/17627670?lang=sl

►

Magistrska naloga obravnava numerično metodo, s katero je mogoče popisati tokovne razmere v sodobnem dizelskem injektorju tako v času posameznih vbrizgov kot tudi v času… (more)

▼

Magistrska naloga obravnava numerično metodo, s katero je mogoče popisati tokovne razmere v sodobnem dizelskem injektorju tako v času posameznih vbrizgov kot tudi v času med njimi, kadar se smatra, da je tok tekočine popolnoma prekinjen. Metoda je namenjena natančni analizi tokovnih razmer v dizelskem injektorju, ki jih je eksperimentalno nemogoče obravnavati v takšnem obsegu, saj so dizelski injektorji, zlasti izstopna izvrtina na njih, ki je ključni del obravnave, dimenzijsko izredno majhni in skoraj nedostopni za merilno opremo. Vbrizg goriva je pri sodobnih motorjih razdeljen v več pod-vbrizgov. Lahko je sestavljen iz pred-vbrizga, glavnega vbrizga in po-vbrizga. Med posameznimi pod-vbrizgi je tok tekočine z injektorsko iglo večkrat ustavljen. Ravno ta prekinitev je bila v predhodnih simulacijah zanemarjena in vsako stopnjo vbrizga je bilo mogoče računati le ločeno kot posamezno simulacijo. Metoda, predstavljena v magistrski nalogi, omogoča preračun več pod-vbrizgov v eni sami simulaciji in pri tem ne zanemarja obdobja, ko je tok tekočine prekinjen. Metodologija je bila razvita v komercialnem CFD programu AVL FIRE.

The Master’s Thesis deals with the numerical method which can describe flow field conditions of a modern diesel injector at the time of injection and also at the time in between injections when the flow is supposed to be fully blocked by a closed needle. The method is intended for detailed analysis of flow field conditions in a diesel injector, which is experimentally impossible to such extent. Diesel injector dimensions and particularly the spray hole, which is the key part of the nozzle, is dimensionally small and virtually inaccessible with measurement equipment. In modern engines fuel injection is split in sub-injection events. It may consist of pre-injection, main-injection and post-injection. During the entire duration of injection the flow is blocked several times by the needle. Sequence of several sub-injection events could not be treated in the past, as the closed needle position could not be handled. Closed needle period has been neglected in previous simulations and each part of injection has been calculated separately as a stand-alone simulation for open needle condition only. With the method presented here, it is possible to calculate several sub-injection events in one single simulation, also including the period between sub-injections when the fluid flow is blocked. The methodology has been developed using the commercial CFD program AVL FIRE.

Advisors/Committee Members: Škerget, Leopold.

Subjects/Keywords: dizelski injektor; vbrizg goriva; pred-vbrizg; po-vbrizg; glavni vbrizg; zaprto stanje igle; pretok v šobi; diesel injector; fuel injection; pre-injection; main-injection; post-injection; closed needle; injector flow; info:eu-repo/classification/udc/[519.6:532.5]621.43.038(043.2)

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APA (6^th Edition):

Štrucl, J. (2013). Obravnava zaprtega stanja igle med posameznimi vbrizgi v dizelskem injektorju. (Masters Thesis). Univerza v Mariboru. Retrieved from https://dk.um.si/IzpisGradiva.php?id=42965 ; https://dk.um.si/Dokument.php?id=60505&dn= ; https://plus.si.cobiss.net/opac7/bib/17627670?lang=sl

Chicago Manual of Style (16^th Edition):

Štrucl, Jure. “Obravnava zaprtega stanja igle med posameznimi vbrizgi v dizelskem injektorju.” 2013. Masters Thesis, Univerza v Mariboru. Accessed March 04, 2021. https://dk.um.si/IzpisGradiva.php?id=42965 ; https://dk.um.si/Dokument.php?id=60505&dn= ; https://plus.si.cobiss.net/opac7/bib/17627670?lang=sl.

MLA Handbook (7^th Edition):

Štrucl, Jure. “Obravnava zaprtega stanja igle med posameznimi vbrizgi v dizelskem injektorju.” 2013. Web. 04 Mar 2021.

Vancouver:

Štrucl J. Obravnava zaprtega stanja igle med posameznimi vbrizgi v dizelskem injektorju. [Internet] [Masters thesis]. Univerza v Mariboru; 2013. [cited 2021 Mar 04]. Available from: https://dk.um.si/IzpisGradiva.php?id=42965 ; https://dk.um.si/Dokument.php?id=60505&dn= ; https://plus.si.cobiss.net/opac7/bib/17627670?lang=sl.

Council of Science Editors:

Štrucl J. Obravnava zaprtega stanja igle med posameznimi vbrizgi v dizelskem injektorju. [Masters Thesis]. Univerza v Mariboru; 2013. Available from: https://dk.um.si/IzpisGradiva.php?id=42965 ; https://dk.um.si/Dokument.php?id=60505&dn= ; https://plus.si.cobiss.net/opac7/bib/17627670?lang=sl

Brno University of Technology

19. Smilek, Lukáš. Přímý vstřik benzínu – vstřikovací systém budoucnosti?: Petrol Direct Injetion - Injection System of Future?.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/9066

► This thesis deals with petrol direct injection system in combustion engines. It introduces the key parts of injection system, describes the construction and function of… (more)

Subjects/Keywords: Spalovací motor; vysokotlaké čerpadlo; zásobník paliva; vysokotlaký vstřikovací ventil; vrstvené plnění; homogenní plnění; Internal combustion engine; high pressure pump; fuel tank; high pressure injector; stratified-charging; homogeneous charging

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APA (6^th Edition):

Smilek, L. (2019). Přímý vstřik benzínu – vstřikovací systém budoucnosti?: Petrol Direct Injetion - Injection System of Future?. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/9066

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):

Smilek, Lukáš. “Přímý vstřik benzínu – vstřikovací systém budoucnosti?: Petrol Direct Injetion - Injection System of Future?.” 2019. Thesis, Brno University of Technology. Accessed March 04, 2021. http://hdl.handle.net/11012/9066.

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

MLA Handbook (7^th Edition):

Smilek, Lukáš. “Přímý vstřik benzínu – vstřikovací systém budoucnosti?: Petrol Direct Injetion - Injection System of Future?.” 2019. Web. 04 Mar 2021.

Vancouver:

Smilek L. Přímý vstřik benzínu – vstřikovací systém budoucnosti?: Petrol Direct Injetion - Injection System of Future?. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/11012/9066.

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

Council of Science Editors:

Smilek L. Přímý vstřik benzínu – vstřikovací systém budoucnosti?: Petrol Direct Injetion - Injection System of Future?. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/9066

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

Brno University of Technology

20. Gach, Jakub. Vývoj a perspektivy systému common rail: Development and perspectives of common rail system.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/66731

► This bachelor thesis is focused on the Common Rail injection system. It describes the origins of the system, its principle and the function of the… (more)

Subjects/Keywords: vznětový motor; Common Rail; vstřikovací systém; vstřikovač; vysokotlaké čerpadlo; palivový zásobník; generace; diesel engine; Common Rail; injection system; injector; high pressure pump; fuel rail; generation

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APA (6^th Edition):

Gach, J. (2019). Vývoj a perspektivy systému common rail: Development and perspectives of common rail system. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/66731

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):

Gach, Jakub. “Vývoj a perspektivy systému common rail: Development and perspectives of common rail system.” 2019. Thesis, Brno University of Technology. Accessed March 04, 2021. http://hdl.handle.net/11012/66731.

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

MLA Handbook (7^th Edition):

Gach, Jakub. “Vývoj a perspektivy systému common rail: Development and perspectives of common rail system.” 2019. Web. 04 Mar 2021.

Vancouver:

Gach J. Vývoj a perspektivy systému common rail: Development and perspectives of common rail system. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/11012/66731.

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

Council of Science Editors:

Gach J. Vývoj a perspektivy systému common rail: Development and perspectives of common rail system. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/66731

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

21. Mohieldin, Taj O. Numerical Modeling of Flame Lift-Off Phenomenon and Calculation of Thermal Loads on a Methane Fuel Injector With Complex Geometry.

Degree: PhD, Mechanical & Aerospace Engineering, 1991, Old Dominion University

URL: https://digitalcommons.odu.edu/mae_etds/253

► A numerical study has been conducted to analyze a fuel injector with three in-line cylinder geometry that has been adopted as a model for… (more)

▼ A numerical study has been conducted to analyze a fuel injector with three in-line cylinder geometry that has been adopted as a model for investigating the combustion phenomenon in the 8-Foot High Temperature Tunnel (HTT) combustor at the NASA Langley Research Center. The primary objective here is to analyze the flame lift-off phenomenon in the three cylinder fuel injector geometry in two-dimensions. The fluid mechanics model used in the analysis includes time-averaged Navier-Stokes equations that are employed in conjunction with a two-equation k-ε model for predicting the effects of turbulence. Calculations were performed with three chemistry models, namely fast chemistry, one-step and two-step reaction kinetics. The coupled elliptic, non-linear, partial differential equations are solved by an existing quadratic upwind scheme. Predictions are made for the flame lift-off, injector surface temperature and thermal load resulting from the combustion phenomenon downstream of the fuel injector. Effects of fuel jet velocity, chemistry model, inlet turbulent intensity and oxygen enrichment on the flame lift-off phenomenon, and the thermal load on the fuel injector are analyzed by considering simultaneously combined convection (outside the cylinders) and conduction (inside the cylinders). Results indicate that as the fuel jet velocity is increased, the flame is transformed from a wrap around configuration to a clearly lifted flame configuration. Of the three chemistry models considered in the present study, only the two-step chemistry model predicts a clearly lifted flame. The results indicate that as the fuel injection velocity is increased the thermal load and peak surface temperature decreases sharply (as the flame gets detached from the injector surface). The effect of oxygen enrichment on the combustion process is very pronounced and causes the establishment of a wrap around flame even at higher injection velocities. Advisors/Committee Members: Sushil K. Chaturvedi, Surendra N. Tiwari, Albert S. Roberts, Jag J. Singh.

Subjects/Keywords: Fluid mechanics; Thermodynamics; Numerical modeling; Thermal loads; Fuel injector; Mechanical Engineering

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APA (6^th Edition):

Mohieldin, T. O. (1991). Numerical Modeling of Flame Lift-Off Phenomenon and Calculation of Thermal Loads on a Methane Fuel Injector With Complex Geometry. (Doctoral Dissertation). Old Dominion University. Retrieved from https://digitalcommons.odu.edu/mae_etds/253

Chicago Manual of Style (16^th Edition):

Mohieldin, Taj O. “Numerical Modeling of Flame Lift-Off Phenomenon and Calculation of Thermal Loads on a Methane Fuel Injector With Complex Geometry.” 1991. Doctoral Dissertation, Old Dominion University. Accessed March 04, 2021. https://digitalcommons.odu.edu/mae_etds/253.

MLA Handbook (7^th Edition):

Mohieldin, Taj O. “Numerical Modeling of Flame Lift-Off Phenomenon and Calculation of Thermal Loads on a Methane Fuel Injector With Complex Geometry.” 1991. Web. 04 Mar 2021.

Vancouver:

Mohieldin TO. Numerical Modeling of Flame Lift-Off Phenomenon and Calculation of Thermal Loads on a Methane Fuel Injector With Complex Geometry. [Internet] [Doctoral dissertation]. Old Dominion University; 1991. [cited 2021 Mar 04]. Available from: https://digitalcommons.odu.edu/mae_etds/253.

Council of Science Editors:

Mohieldin TO. Numerical Modeling of Flame Lift-Off Phenomenon and Calculation of Thermal Loads on a Methane Fuel Injector With Complex Geometry. [Doctoral Dissertation]. Old Dominion University; 1991. Available from: https://digitalcommons.odu.edu/mae_etds/253

Brno University of Technology

22. Faiman, Jiří. Palivové systémy zážehových motorů: Fuel Systems of SI-engines.

Degree: 2018, Brno University of Technology

URL: http://hdl.handle.net/11012/26395

► The aim of this work is to create a list of fuel systems used in modern gasoline engines and describe the basic components of these… (more)

Subjects/Keywords: Palivový systém; přímé vstřikování; nepřímé vstřikování; homogenní plnění; vrstvené plnění; vysokotlaké čerpadlo; rozdělovač paliva; tlakový řídící ventil; senzor tlaku paliva; vstřikovač paliva; vstřikovací tryska; katalyzátor; MED Motronic; TSI motor; FSI motor; TFSI motor; CGI motor; TCE motor.; Fuel system; direct injection; indirect injection; homogeneous mode; stratified-charge mode; high-pressure pump; fuel rail; pressure control valve; pressure sensor; fuel injector; injector nozzle; catalysts; MED Motronic; TSI engine; FSI engine TFSI engine; CGI engine TCE engine.

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APA (6^th Edition):

Faiman, J. (2018). Palivové systémy zážehových motorů: Fuel Systems of SI-engines. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/26395

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):

Faiman, Jiří. “Palivové systémy zážehových motorů: Fuel Systems of SI-engines.” 2018. Thesis, Brno University of Technology. Accessed March 04, 2021. http://hdl.handle.net/11012/26395.

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

MLA Handbook (7^th Edition):

Faiman, Jiří. “Palivové systémy zážehových motorů: Fuel Systems of SI-engines.” 2018. Web. 04 Mar 2021.

Vancouver:

Faiman J. Palivové systémy zážehových motorů: Fuel Systems of SI-engines. [Internet] [Thesis]. Brno University of Technology; 2018. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/11012/26395.

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

Council of Science Editors:

Faiman J. Palivové systémy zážehových motorů: Fuel Systems of SI-engines. [Thesis]. Brno University of Technology; 2018. Available from: http://hdl.handle.net/11012/26395

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

Pontifical Catholic University of Rio de Janeiro

23. LEONARDO COSTA BRAGA. [en] EXPERIMENTAL EVALUATION OF DEPOSITS IN FUEL INJECTORS OF A GASOLINE DIRECT INJECTION ENGINE.

Degree: 2019, Pontifical Catholic University of Rio de Janeiro

URL: http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=37906

►

[pt] O desenvolvimento de um motor de quatro tempos, de ignição por centelha, com injeção direta de combustível dentro da câmara de combustão foi uma… (more)

▼

[pt] O desenvolvimento de um motor de quatro tempos, de ignição por centelha, com injeção direta de combustível dentro da câmara de combustão foi uma iniciativa importante para o mercado automobilístico mundial. O potencial termodinâmico deste tipo de motor e sua notória melhoria na economia de combustível têm feito com que a tecnologia seja foco de um grande número de projetos de pesquisa, com o objetivo de entender, desenvolver e aperfeiçoar o sistema de injeção direta de combustível. No entanto, para atender aos novos limites de emissões estabelecidas pela especificação EURO 5, foi necessária uma reavaliação do projeto da geometria do injetor, o que ocasionou no desenvolvimento de um novo componente com um maior número de furos e com uma redução do diâmetro dos mesmos (injetor multifuros). Essa alteração no projeto visa garantir uma melhor pulverização, otimização da relação ar/combustível e, consequentemente, um melhor processo de queima na câmara de combustão, atendendo dessa forma os limites de emissões estabelecidos pela diretriz normativa vigente. Os processos de preparação da mistura, injeção, vaporização e controle do escoamento de ar dentro do cilindro têm sido as principais fontes de publicações de periódicos que estudam o sistema de injeção direta. O presente trabalho, por sua vez, tem por finalidade avaliar a formação de depósitos de compostos inorgânicos nos injetores, provenientes da utilização de combustíveis formulados com diferentes teores de sulfato. O motor utilizado para execução dos testes foi o EP6CDT da PSA Peugeot Citroen. No estudo foram realizados ensaios em bancada de testes e em veículos (estrada e dinamômetro). Outros veículos com a mesma tecnologia, disponíveis no mercado brasileiro, também foram testados. As variáveis avaliadas durante o projeto foram: a composição química de diferentes combustíveis, fator de correção do tempo de injeção (FRA) e a vazão através dos bicos injetores no decorrer dos testes. Os estudos indicaram que a mudança na geometria dos injetores, somada a composição das gasolinas nacionais testadas, originou a formação dos depósitos que será discutida ao longo deste trabalho.

[en] The development of a four-stroke engine, spark ignition, with direct injection of fuel into the combustion chamber was an important initiative for the global automotive market. The thermodynamic potential of this type of engine and its significant improvement in fuel economy have meant this technology as focus of a large number of research projects, with the objective to understand, develop and improve the system of direct fuel injection. However, to meet new emission limits set by Euro 5 specification, it was necessary to reevaluate the geometry design of the injector, which resulted in the development of a new component with a larger number of holes and with a diameter reduction (multi-holes injector). This change in the project aims to ensure a better spray, optimizing air / fuel ratio and, consequently, a better process of combustion inside the combustion chamber, satisfying the…

Advisors/Committee Members: CARLOS VALOIS MACIEL BRAGA.

Subjects/Keywords: [pt] COMBUSTIVEL; [en] FUEL; [pt] VAZAO; [en] FLOW; [pt] DEPOSITOS DE PARAFINA; [en] WAX DEPOSITS; [pt] BICO INJETOR; [en] FUEL INJECTOR; [pt] MOTOR DE INJECAO DIRETA DE COMBUSTIVEL; [en] GASOLINE DIRECT INJECTION ENGINE; [pt] ORIGEM INORGANICA; [en] INORGANIC DEPOSITS; [pt] DINAMOMETRO DE CHASSIS; [en] CHASSIS DYNAMOMETER

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APA (6^th Edition):

BRAGA, L. C. (2019). [en] EXPERIMENTAL EVALUATION OF DEPOSITS IN FUEL INJECTORS OF A GASOLINE DIRECT INJECTION ENGINE. (Thesis). Pontifical Catholic University of Rio de Janeiro. Retrieved from http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=37906

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):

BRAGA, LEONARDO COSTA. “[en] EXPERIMENTAL EVALUATION OF DEPOSITS IN FUEL INJECTORS OF A GASOLINE DIRECT INJECTION ENGINE.” 2019. Thesis, Pontifical Catholic University of Rio de Janeiro. Accessed March 04, 2021. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=37906.

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

MLA Handbook (7^th Edition):

BRAGA, LEONARDO COSTA. “[en] EXPERIMENTAL EVALUATION OF DEPOSITS IN FUEL INJECTORS OF A GASOLINE DIRECT INJECTION ENGINE.” 2019. Web. 04 Mar 2021.

Vancouver:

BRAGA LC. [en] EXPERIMENTAL EVALUATION OF DEPOSITS IN FUEL INJECTORS OF A GASOLINE DIRECT INJECTION ENGINE. [Internet] [Thesis]. Pontifical Catholic University of Rio de Janeiro; 2019. [cited 2021 Mar 04]. Available from: http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=37906.

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

Council of Science Editors:

BRAGA LC. [en] EXPERIMENTAL EVALUATION OF DEPOSITS IN FUEL INJECTORS OF A GASOLINE DIRECT INJECTION ENGINE. [Thesis]. Pontifical Catholic University of Rio de Janeiro; 2019. Available from: http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=37906

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

24. Meeboon, Non. Design and Development of a Porous Injector for Gaseous Fuels Injection in Gas Turbine Combustor.

Degree: MS, Engineering and Applied Science: Aerospace Engineering, 2015, University of Cincinnati

URL: http://rave.ohiolink.edu/etdc/view?acc_num=ucin1427813298

► A novel porous injector is designed for injection of gaseous fuel in land based gas turbine combustors. The injector is tested at atmospheric conditions at… (more)

Subjects/Keywords: Aerospace Materials; Porous; Injector; Gaseous fuel; Gas turbine; Combustor; Fuel-air mixing

…Zeldovich 1946). The premixing of fuel and air depends on the design of the fuel injector… …Novel fuel injector concepts have to be developed to improve fuel-air mixing and control the… …fuel-air mixing profile at the exit of the injector. The primary objective of this study is… …to develop a novel injector with an innovative fuel injection concept that will provide a… …desired fuel-air mixing profile at the exit of the injector, lower lean blow limits, and…

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APA (6^th Edition):

Meeboon, N. (2015). Design and Development of a Porous Injector for Gaseous Fuels Injection in Gas Turbine Combustor. (Masters Thesis). University of Cincinnati. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=ucin1427813298

Chicago Manual of Style (16^th Edition):

Meeboon, Non. “Design and Development of a Porous Injector for Gaseous Fuels Injection in Gas Turbine Combustor.” 2015. Masters Thesis, University of Cincinnati. Accessed March 04, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1427813298.

MLA Handbook (7^th Edition):

Meeboon, Non. “Design and Development of a Porous Injector for Gaseous Fuels Injection in Gas Turbine Combustor.” 2015. Web. 04 Mar 2021.

Vancouver:

Meeboon N. Design and Development of a Porous Injector for Gaseous Fuels Injection in Gas Turbine Combustor. [Internet] [Masters thesis]. University of Cincinnati; 2015. [cited 2021 Mar 04]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=ucin1427813298.

Council of Science Editors:

Meeboon N. Design and Development of a Porous Injector for Gaseous Fuels Injection in Gas Turbine Combustor. [Masters Thesis]. University of Cincinnati; 2015. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=ucin1427813298

Indian Institute of Science

25. Rakesh, P. A Study of the Characteristics of Gas-On-Liquid Impinging Injectors.

Degree: PhD, Faculty of Engineering, 2018, Indian Institute of Science

URL: http://etd.iisc.ac.in/handle/2005/3126

► The work presented here pertains to investigations on gas-on-liquid type of impinging injectors with a generic approach with prospective applications in several areas, and at… (more)

▼ The work presented here pertains to investigations on gas-on-liquid type of impinging injectors with a generic approach with prospective applications in several areas, and at places with particular emphasis on cryogenic or semi-cryogenic liquid propellant rockets. In such rockets, one of the components arrives at the injector in a gaseous phase after passing through the regenerative coolant passages or a preceding combustion stage. Most often, the injectors in such systems are of shear coaxial type. The shear coaxial injectors suffer from several disadvantages like complexity in design, manufacture and quality control. Adoption of impinging jet configuration can alleviate these problems in addition to providing further benefits in terms of cost, robustness in high temperature environment and manifolding. However, there is very little literature on gas-on-liquid injectors either in this context or in any other Even for the simplest form of impinging injectors such as like-on-like doublets, literature provides no conclusive direction at describing a spray from the theoretical models of physical mechanisms. Empirical approach is still the prime mode of obtaining a proper understanding of the phenomena. Steady state spray characterization includes mainly of describing the spatial distribution of liquid mass and drop size distribution as a function of geometric and injection parameters. The parameters that are likely to have an impact on spray characteristics are orifice diameter, ratio of orifice length to diameter, pre-impingement length of individual jets, inter orifice distance, impingement angle, jet velocity and condition of the jet just before impingement. The gas-on- liquid configuration is likely to experience some qualitative changes because of the expansion of the gas jet. The degree to which each one of the above variables influences the drop size and mass distribution having implication to combustion performance forms the core theme of the thesis. A dedicated experimental facility has been built, calibrated and deployed exhaustively. While spray drop size measurement is done largely by a laser diffraction instrument, some of the cases warranted an image processing technique. Two different image processing algorithms are developed in-house for this purpose. The granulometric image processing method developed earlier in the group for cryogenic sprays is modified and its applicability to gas-on-liquid impinging sprays are verified. Another technique based on the Hough transform which is feature extraction technique for extracting quantitative information has also been developed and used for gas-on-liquid impinging injectors. A comparative study of conventional liquid-on-liquid doublet with gas-on-liquid impinging injectors are first made to establish the importance of studying gas-on-liquid impinging injectors. The study identifies the similarities and differences between the two types and highlights the features that make such injectors attractive as replacements to coaxial… Advisors/Committee Members: Raghunandan, B N (advisor).

Subjects/Keywords: Impinging Injectors; Impinging Atomizers; Gas-On-Liquid Impinging Injectors; Liquid Propellant Rockets; Impinging Jet Injectors; Atomizers; Cryogenic Rocket Injectors; Impinging Fuel Injector Atomization; Impinging Injectors Spraying; Image Processing - Spraying; Gas-On-Liquid Impinging Sprays; Liquid-on Liquid Impingement; Aerospace Engineering

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

APA (6^th Edition):

Rakesh, P. (2018). A Study of the Characteristics of Gas-On-Liquid Impinging Injectors. (Doctoral Dissertation). Indian Institute of Science. Retrieved from http://etd.iisc.ac.in/handle/2005/3126

Chicago Manual of Style (16^th Edition):

Rakesh, P. “A Study of the Characteristics of Gas-On-Liquid Impinging Injectors.” 2018. Doctoral Dissertation, Indian Institute of Science. Accessed March 04, 2021. http://etd.iisc.ac.in/handle/2005/3126.

MLA Handbook (7^th Edition):

Rakesh, P. “A Study of the Characteristics of Gas-On-Liquid Impinging Injectors.” 2018. Web. 04 Mar 2021.

Vancouver:

Rakesh P. A Study of the Characteristics of Gas-On-Liquid Impinging Injectors. [Internet] [Doctoral dissertation]. Indian Institute of Science; 2018. [cited 2021 Mar 04]. Available from: http://etd.iisc.ac.in/handle/2005/3126.

Council of Science Editors:

Rakesh P. A Study of the Characteristics of Gas-On-Liquid Impinging Injectors. [Doctoral Dissertation]. Indian Institute of Science; 2018. Available from: http://etd.iisc.ac.in/handle/2005/3126

26. Dvorak, Daniel Dean. An experimental investigation on the spray flow exhausted from a co-swirling air-blast nozzle.

Degree: 2012, Iowa State University

URL: https://lib.dr.iastate.edu/etd/12944

► The velocity field for a spray produced by an air-blast atomizer is measured using Particle Image Velocimetry (PIV). These measurements are conducted at a variety… (more)

Subjects/Keywords: atomizer; fuel injector; PIV; spray flow; velocity; Aerospace Engineering; Mechanical Engineering

…atomization process. With better models and understanding, fuel injector performance can be improved… …emissions of gas turbine engines. Besides improvements to fuel injector performance, there are… …from a fuel injector. The main emphasis of the investigation compared the flow field… …structures in a radial swirler fuel injector were investigated by Midgley, K. et al. (2005… …x29; using a standard PIV system. The fuel injector had a single central jet surrounded by a…

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APA (6^th Edition):

Dvorak, D. D. (2012). An experimental investigation on the spray flow exhausted from a co-swirling air-blast nozzle. (Thesis). Iowa State University. Retrieved from https://lib.dr.iastate.edu/etd/12944

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):

Dvorak, Daniel Dean. “An experimental investigation on the spray flow exhausted from a co-swirling air-blast nozzle.” 2012. Thesis, Iowa State University. Accessed March 04, 2021. https://lib.dr.iastate.edu/etd/12944.

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

MLA Handbook (7^th Edition):

Dvorak, Daniel Dean. “An experimental investigation on the spray flow exhausted from a co-swirling air-blast nozzle.” 2012. Web. 04 Mar 2021.

Vancouver:

Dvorak DD. An experimental investigation on the spray flow exhausted from a co-swirling air-blast nozzle. [Internet] [Thesis]. Iowa State University; 2012. [cited 2021 Mar 04]. Available from: https://lib.dr.iastate.edu/etd/12944.

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

Council of Science Editors:

Dvorak DD. An experimental investigation on the spray flow exhausted from a co-swirling air-blast nozzle. [Thesis]. Iowa State University; 2012. Available from: https://lib.dr.iastate.edu/etd/12944

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

Loughborough University

27. Reid, Benjamin A. An optical investigation of cavitation phenomena in true-scale high-pressure diesel fuel injector nozzles.

Degree: PhD, 2010, Loughborough University

URL: http://hdl.handle.net/2134/6358

► Efforts to improve diesel fuel sprays have led to a significant increase in fuel injection pressures and a reduction in nozzle-hole diameters. Under these conditions,… (more)

▼ Efforts to improve diesel fuel sprays have led to a significant increase in fuel injection pressures and a reduction in nozzle-hole diameters. Under these conditions, the likelihood for the internal nozzle flow to cavitate is increased, which potentially affects spray breakup and atomisation, but also increases the risk of causing cavitation damage to the injector. This thesis describes the study of cavitating flow phenomena in various single and multi-hole optical nozzle geometries. It includes the design and development of a high-pressure optical fuel injector test facility with which the cavitating flows were observed. Experiments were undertaken using real-scale optical diesel injector nozzles at fuel injection pressures up to 2050 bar, observing for the first time the characteristics of the internal nozzle-flow under realistic fuel injection conditions. High-speed video and high resolution photography, using laser illumination sources, were used to capture the cavitating flow in the nozzle-holes and sac volume of the optical nozzles, which contained holes ranging in size from 110 micrometers to 300 micrometers. Geometric cavitation in the nozzle-holes and string cavitation formation in the nozzle-holes and sac volume were both observed using transient and steady-state injection conditions; injecting into gaseous and liquid back pressures up to 150 bar. Results obtained have shown that cavitation strings observed at realistic fuel injection pressures exhibit the same physical characteristics as those observed at lower pressures. The formation of string cavitation was observed in the 300 micrometers multi-hole nozzle geometries, exhibiting a mutual dependence on nozzle flow-rate and the geometry of the nozzle-holes. Pressure changes, caused by localised turbulent perturbations in the sac volume and transient fuel injection characteristics, independently affected the geometric and string cavitation formation in each of the holes. String cavitation formation of was shown to occur when free-stream vapour was entrained into the low pressure core of a sufficiently intense coherent vortex. Hole diameters less than or equal to 160 micrometers were found to suppress string cavitation formation, with this effect a result of the reduced nozzle flow rate and vortex intensity. Using different hole spacing geometries, it was demonstrated that the formation of cavitation strings in a particular geometry became independent of fuel injection and back pressure once a threshold pressure drop across the nozzle had been reached.

Subjects/Keywords: 629.2; Cavitation; High-pressure; Fuel injector; Nozzle; True-scale; String cavitation; Multi-hole; Diesel

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APA (6^th Edition):

Reid, B. A. (2010). An optical investigation of cavitation phenomena in true-scale high-pressure diesel fuel injector nozzles. (Doctoral Dissertation). Loughborough University. Retrieved from http://hdl.handle.net/2134/6358

Chicago Manual of Style (16^th Edition):

Reid, Benjamin A. “An optical investigation of cavitation phenomena in true-scale high-pressure diesel fuel injector nozzles.” 2010. Doctoral Dissertation, Loughborough University. Accessed March 04, 2021. http://hdl.handle.net/2134/6358.

MLA Handbook (7^th Edition):

Reid, Benjamin A. “An optical investigation of cavitation phenomena in true-scale high-pressure diesel fuel injector nozzles.” 2010. Web. 04 Mar 2021.

Vancouver:

Reid BA. An optical investigation of cavitation phenomena in true-scale high-pressure diesel fuel injector nozzles. [Internet] [Doctoral dissertation]. Loughborough University; 2010. [cited 2021 Mar 04]. Available from: http://hdl.handle.net/2134/6358.

Council of Science Editors:

Reid BA. An optical investigation of cavitation phenomena in true-scale high-pressure diesel fuel injector nozzles. [Doctoral Dissertation]. Loughborough University; 2010. Available from: http://hdl.handle.net/2134/6358

28. Ahmed, Aqeel. LES of atomization and cavitation for fuel injectors : Simulation aux grandes échelles de l'atomisation et de la cavitation dans le cadre des injections de carburant.

Degree: Docteur es, Mecanique des fluides, energetique, thermique, combustion, acoustique, 2019, Normandie

URL: http://www.theses.fr/2019NORMR048

►

Cette thèse présente la Simulation des Grandes Echelles (LES) de l’injection, de la pulvérisation et de la cavitation dans un injecteur pour les applications liées… (more)

▼

Cette thèse présente la Simulation des Grandes Echelles (LES) de l’injection, de la pulvérisation et de la cavitation dans un injecteur pour les applications liées aux moteurs à combustion interne. Pour la modélisation de l’atomisation, on utilise le modèle ELSA (Eulerian Lagrangian Spray Atomization). Le modèle résout la fraction volumique du combustible liquide ainsi que la densité de surface d’interface liquide-gaz pour décrire le processus complet d’atomisation. Dans cette thèse, l’écoulement à l’intérieur de l’injecteur est également pris en compte pour une étude ultérieure de l’atomisation. L’étude présente l’application du modèle ELSA à un injecteur Diesel typique, à la fois dans le contexte de RANS et de LES.Le modèle est validé à l’aide de données expérimentales disponibles dans Engine Combustion Network (ECN). Le modèle ELSA, qui est normalement conçu pour les interfaces diffuses (non résolues), lorsque l’emplacement exact de l’interface liquide-gaz n’est pas pris en compte, est étendu pour fonctionner avec une formulation de type Volume of Fluid (VOF) de flux à deux phases, où l’interface est explicitement résolu. Le couplage est réalisé à l’aide de critères IRQ (Interface Resolution Quality), qui prennent en compte à la fois la courbure de l’interface et la quantité modélisée de la surface de l’interface. Le modèle ELSA est développé en premier lieu en considérant les deux phases comme incompressibles. L’extension à la phase compressible est également brièvement étudiée dans cette thèse. Il en résulte une formulation ELSA compressible qui prend en compte la densité variable de chaque phase. En collaboration avec l’Imperial College de Londres, la formulation de la fonction de densité de probabilité (PDF) avec les champs stochastiques est également explorée afin d’étudier l’atomisation. Dans les systèmes d’injection de carburant modernes, la pression locale à l’intérieur de l’injecteur tombe souvent en dessous de la pression de saturation en vapeur du carburant, ce qui entraîne une cavitation. La cavitation affecte le flux externe et la formulation du spray. Ainsi, une procédure est nécessaire pour étudier le changement de phase ainsi que la formulation du jet en utilisant une configuration numérique unique et cohérente. Une méthode qui couple le changement de phase à l’intérieur de l’injecteur à la pulvérisation externe du jet est développée dans cette thèse. Ceci est réalisé en utilisant le volume de formulation de fluide où l’interface est considérée entre le liquide et le gaz; le gaz est composé à la fois de vapeur et d’airambiant non condensable.

This thesis presents Large Eddy Simulation (LES) of fuel injection, atomization and cavitation inside the fuel injector for applications related to internal combustion engines. For atomization modeling, Eulerian Lagrangian Spray Atomization (ELSA) model is used. The model solves for volume fraction of liquid fuel as well as liquid-gas interface surface density to describe the complete atomization process. In this thesis, flow inside the injector is also…

Advisors/Committee Members: Demoulin, François-Xavier (thesis director), Reveillon, Julien (thesis director).

Subjects/Keywords: Simulation des grandes échelles (SGE); Modélisation par atomisation; CFD; Ecoulement interne d'injecteur de carburant; Modélisation numérique par cavitation; Atomisation coulée par cavitation; Fonction de densité de probabilité (PDF); Distribution de la taille des gouttes; Ecoulement diphasique liquide-gaz incompressible; Ecoulement liquide-gaz diphasique compressible; Large Eddy Simulation (LES); Atomisation modeling; CFD; Fuel injector internal flow; Cavitation numerical modeling; Cavitation coulpled atomization; Probability density function (PDF); Drop size distribution; Incompressible two phase liquid-gas flow; Compressible two phase liquid-gas flow; 621.43

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

APA (6^th Edition):

Ahmed, A. (2019). LES of atomization and cavitation for fuel injectors : Simulation aux grandes échelles de l'atomisation et de la cavitation dans le cadre des injections de carburant. (Doctoral Dissertation). Normandie. Retrieved from http://www.theses.fr/2019NORMR048

Chicago Manual of Style (16^th Edition):

Ahmed, Aqeel. “LES of atomization and cavitation for fuel injectors : Simulation aux grandes échelles de l'atomisation et de la cavitation dans le cadre des injections de carburant.” 2019. Doctoral Dissertation, Normandie. Accessed March 04, 2021. http://www.theses.fr/2019NORMR048.

MLA Handbook (7^th Edition):

Ahmed, Aqeel. “LES of atomization and cavitation for fuel injectors : Simulation aux grandes échelles de l'atomisation et de la cavitation dans le cadre des injections de carburant.” 2019. Web. 04 Mar 2021.

Vancouver:

Ahmed A. LES of atomization and cavitation for fuel injectors : Simulation aux grandes échelles de l'atomisation et de la cavitation dans le cadre des injections de carburant. [Internet] [Doctoral dissertation]. Normandie; 2019. [cited 2021 Mar 04]. Available from: http://www.theses.fr/2019NORMR048.

Council of Science Editors:

Ahmed A. LES of atomization and cavitation for fuel injectors : Simulation aux grandes échelles de l'atomisation et de la cavitation dans le cadre des injections de carburant. [Doctoral Dissertation]. Normandie; 2019. Available from: http://www.theses.fr/2019NORMR048

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Open Access Theses and Dissertations