subject:(engines developement)

Universitat Politècnica de València

1. Valero Marco, Jorge. Analysis of the potential of SI lean combustion and CAI combustion in a two-stroke spark-assisted gasoline engine .

Degree: 2020, Universitat Politècnica de València

URL: http://hdl.handle.net/10251/138556

► [EN] Internal combustion engines are in a situation in which they must be cleaner and more efficient than they have ever been. This change is… (more)

▼ [EN] Internal combustion engines are in a situation in which they must be cleaner and more efficient than they have ever been. This change is motivated by the global and continuous evolution of the emissions regulations linked to their commercialization, which try to establish the path to protect the human health, and move towards more sustainable energetic models. Framed in this context, the research work developed in this PhD thesis has focused on the way to continue improving the spark ignition engines. To this end, a prototype two-stroke engine has been used, with the idea of studying the Spark Ignited combustion in lean conditions ('lean SI') and the Controlled Auto-Ignition combustion 'CAI'). In this way, the traditional 'SI' operation in stoichiometric conditions of this type of engines is replaced, looking for an improvement in fuel efficiency, and a reduction, at the same time, of the pollutant emissions. This work has been approached mainly from an experimental point of view. Firstly, different works have been performed on the engine: operation of the different combustion modes, definition of the operating strategies, and compilation of experimental data coming from the engine operation in the different regions of the engine map. And, secondly, all this data has been analyzed and studied in detail to define the strengths and weaknesses of each combustion mode applied to the different engine operating conditions. The combination of these two works has led to obtain a large amount of data about the achievable efficiencies and the emissions values obtained in each combustion mode. And, in addition, the influence on the combustion of the burned gases recirculation in the engine ('EGR'), has also been studied as a strategy to reduce emissions, and control the combustion at high loads in both combustion modes. Regarding the analytical part of the work, several problems have been detected. Firstly, the high combustion variability in this engine, and secondly, the coupling of two completely different combustion modes. These issues have generated the need to analyze the data obtained in a more detailed way, in order to get more information about the combustion process. To solve these two aspects, first, a different point of view has been raised when dealing with the combustion diagnosis, the cycle to cycle analysis, and secondly, a combustion analysis methodology has been proposed in order to allow the combustion analysis from a more detailed point of view. In this way the combustion development is studied, and thus, the differentiation between the different combustion events that take place in the engine can be studied. All this work has been useful to define the strategies to operate the whole engine map by combining the 'lean SI' and 'CAI' combustion modes. This solution, compared to the current Euro VI engines, has presented higher efficiency values complying with the established emissions limits, showing in this way, the high potential of these combustion modes applied to 'SI' engines, as well as a real… Advisors/Committee Members: López Sánchez, José Javier (advisor).

Subjects/Keywords: Two-stoke engine; engines developement; CAI (Controlled Auto-Ignition); SI (Spark Ignition); Lean Combustion; advanced combustion modes; combustion analysis; instantaneous cycles; cycle to cycle variation; air-assisted injection; HRL (Heat Release Law); combustion speed.

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

APA (6^th Edition):

Valero Marco, J. (2020). Analysis of the potential of SI lean combustion and CAI combustion in a two-stroke spark-assisted gasoline engine . (Doctoral Dissertation). Universitat Politècnica de València. Retrieved from http://hdl.handle.net/10251/138556

Chicago Manual of Style (16^th Edition):

Valero Marco, Jorge. “Analysis of the potential of SI lean combustion and CAI combustion in a two-stroke spark-assisted gasoline engine .” 2020. Doctoral Dissertation, Universitat Politècnica de València. Accessed February 28, 2021. http://hdl.handle.net/10251/138556.

MLA Handbook (7^th Edition):

Valero Marco, Jorge. “Analysis of the potential of SI lean combustion and CAI combustion in a two-stroke spark-assisted gasoline engine .” 2020. Web. 28 Feb 2021.

Vancouver:

Valero Marco J. Analysis of the potential of SI lean combustion and CAI combustion in a two-stroke spark-assisted gasoline engine . [Internet] [Doctoral dissertation]. Universitat Politècnica de València; 2020. [cited 2021 Feb 28]. Available from: http://hdl.handle.net/10251/138556.

Council of Science Editors:

Valero Marco J. Analysis of the potential of SI lean combustion and CAI combustion in a two-stroke spark-assisted gasoline engine . [Doctoral Dissertation]. Universitat Politècnica de València; 2020. Available from: http://hdl.handle.net/10251/138556

Brno University of Technology

2. Říha, Jaroslav. Historie motorů BMW: History of BMW engines.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/6250

► This bachelor thesis deals with the foundantion of the company BMW in Munich, the development of air, motorcycle and car engines, from their beginning to… (more)

Subjects/Keywords: Historický přehled vývoje; BMW; technická specifikace motorů; výkonnostní parametry.; Historical view of the developement; BMW; technical specifications of the engines; performance parameters.

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

APA (6^th Edition):

Říha, J. (2019). Historie motorů BMW: History of BMW engines. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/6250

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):

Říha, Jaroslav. “Historie motorů BMW: History of BMW engines.” 2019. Thesis, Brno University of Technology. Accessed February 28, 2021. http://hdl.handle.net/11012/6250.

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

MLA Handbook (7^th Edition):

Říha, Jaroslav. “Historie motorů BMW: History of BMW engines.” 2019. Web. 28 Feb 2021.

Vancouver:

Říha J. Historie motorů BMW: History of BMW engines. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Feb 28]. Available from: http://hdl.handle.net/11012/6250.

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

Council of Science Editors:

Říha J. Historie motorů BMW: History of BMW engines. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/6250

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

Brno University of Technology

3. Marcinko, Peter. Vývoj raketových motorů: Development of rocket engines.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/33320

► This thesis describes the development of rocket engines since the beginning to present time. The thesis is divided into three parts. The first describes the… (more)

Subjects/Keywords: Raketový motor; raketa; technické parametre; vývoj raketových motorov; raketový program; Rocket engine; rocket; technical parameters; developement of rocket engines; rocket programe

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

APA (6^th Edition):

Marcinko, P. (2019). Vývoj raketových motorů: Development of rocket engines. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/33320

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):

Marcinko, Peter. “Vývoj raketových motorů: Development of rocket engines.” 2019. Thesis, Brno University of Technology. Accessed February 28, 2021. http://hdl.handle.net/11012/33320.

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

MLA Handbook (7^th Edition):

Marcinko, Peter. “Vývoj raketových motorů: Development of rocket engines.” 2019. Web. 28 Feb 2021.

Vancouver:

Marcinko P. Vývoj raketových motorů: Development of rocket engines. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Feb 28]. Available from: http://hdl.handle.net/11012/33320.

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

Council of Science Editors:

Marcinko P. Vývoj raketových motorů: Development of rocket engines. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/33320

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

Brno University of Technology

4. Marcinko, Peter. Vývoj raketových motorů: Development of rocket engines.

Degree: 2014, Brno University of Technology

URL: http://hdl.handle.net/11012/27145

► This thesis describes the development of rocket engines since the beginning to present time. The thesis is divided into three parts. The first describes the… (more)

Subjects/Keywords: Raketový motor; raketa; technické parametre; vývoj raketových motorov; raketový program; Rocket engine; rocket; technical parameters; developement of rocket engines; rocket programe

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Marcinko, P. (2014). Vývoj raketových motorů: Development of rocket engines. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/27145

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):

Marcinko, Peter. “Vývoj raketových motorů: Development of rocket engines.” 2014. Thesis, Brno University of Technology. Accessed February 28, 2021. http://hdl.handle.net/11012/27145.

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

MLA Handbook (7^th Edition):

Marcinko, Peter. “Vývoj raketových motorů: Development of rocket engines.” 2014. Web. 28 Feb 2021.

Vancouver:

Marcinko P. Vývoj raketových motorů: Development of rocket engines. [Internet] [Thesis]. Brno University of Technology; 2014. [cited 2021 Feb 28]. Available from: http://hdl.handle.net/11012/27145.

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

Council of Science Editors:

Marcinko P. Vývoj raketových motorů: Development of rocket engines. [Thesis]. Brno University of Technology; 2014. Available from: http://hdl.handle.net/11012/27145

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

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