Evaluation of mixture swirl in the cylinder chamber in a conceptual system with combustion surrounded by inactive gases
 
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Faculty of Transport Engineering, Poznan University of Technology.
Publication date: 2018-11-01
 
Combustion Engines 2018,175(4), 40–47
 
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ABSTRACT
Internal combustion engines have seen a reduction of the dynamics of their efficiency growth in recent years. All kinds of new modifications and changes introduced in this field can only manage changes of engine efficiency at the level of a fraction of a percent. Considering the concept of unification of SI and CI internal combustion engine structures, one can expect to see their efficiency increase by the reduction of losses, whose causes and occurrence is commonly known. The improvement of the combustion system is mainly related to the reduction of thermal losses generated in this process. Therefore, the current issue is the advanced analysis of any possibilities of improving the combustion conditions and more fully understanding the processes that accompany them. The authors of the article see such a possibility in the conceptual control of the combustion process, which aims to obtain a combustible mixture surrounded by nonflammable gases. This way the flame contact with the cylinder walls is limited, which should in turn contribute to reducing the heat exchange with the walls. This research is a continuation of previous research work; current work focuses on determining the actual distribution of gases in the combustion chamber using the advanced shadow photography method. The article specifies the effect of nonflammable gas injection pressure increase on the area of the boundary layer formed between the non-flammable gases and cylinder walls.
 
REFERENCES (28)
1.
A hierarchy of models for simulating experimental results, https://www.research-collectio... (accessed 10.11.2017).
 
2.
ALGER, T. Developments in high efficiency engine technologies and an introduction to SwRI's dedicated EGR concept. Directions in Engine-Efficiency and Emissions Research (DEER), Southwest Research Institute, San Antonio, 2012.
 
3.
ALGER, T. Gasoline engine technology for high efficiency. https://crcao.org/work-shops (accessed 09.04.2018).
 
4.
BLANK, H., DISMON, H., KOCHS, M. et al. EGR and air management for direct injection gasoline engines. SAE Technical Paper 2002-01-0707, 2002, DOI:10.4271/2002-01-0707.
 
5.
BOROWSKI, P., PIELECHA, I., CIEŚLIK, W. et al. Statyczny i dynamiczny downsizing silników spalinowych. Logistyka. 2013, 3, 671-679.
 
6.
CIEŚLIK, W., PIELECHA, I. Analysis of the possibilities to achieve adiabatization process of combustion surrounded by inactive gases in RCM. Combustion Engines. 2017, 168(1), 27-31. DOI:10.19206/CE-2017-104.
 
7.
CIEŚLIK, W., PIELECHA, I., KAPUSTA, Ł. The concept of combustion system with use of recirculated exhaust gas in the spark ignition engine. Combustion Engines. 2015, 162(3), 257-263.
 
8.
CIEŚLIK, W., PIELECHA, I., WISŁOCKI, K. Optical identification of the combustion of air-fuel mixture surrounded by non-combustible gas in a rapid compression machine. Archivum Combustionis. 2017, 37(2), 93-106.
 
9.
CRAWFORD, M. 3 Emerging Trends in Automotive Engineering, 2013.
 
10.
Economy beamsplitters, www.thorlabs.com (accessed 5.06.2016).
 
11.
FLAIG, B., BEYER, U., ANDRÉ, M. Exhaust gas recirculation in gasoline engines with direct injection. MTZ. 2010, 71, 22-27.
 
12.
GOPAL, V., KLOSOWIAK, J.L., JAEGER R. et al. Visualizing the invisible: the construction of three low-cost schlieren imaging systems for the undergraduate laboratory. European Journal of Physics. 2008, 29(3), 607-617.
 
13.
HARGATHER M., SETTLES G.S. Natural-backgroundoriented schlieren imaging. Experiments in Fluids. 2010, 48, 59-68.
 
14.
HIROSE, I., HITOMI, M. Mazda’s way to more efficient internal combustion engines. MTZ. 2016, 5(77).
 
15.
It’s all about flow, http://www.ai-online.com (accessed 18.05.2017).
 
16.
KAWAMOTO, N., NAIKI, K., KAWAI, T. et al. Development of new 1.8-liter engine for hybrid vehicles. SAE Technical Paper 2009-01-1061, 2009.
 
17.
KOWALEWICZ, A. Podstawy procesów spalania. WNT, Warszawa 2000.
 
18.
LaVision GmbH, www.lavision.de (accessed 15.07.2016).
 
19.
Main components required for PIV setup, http://www.andor.com (accessed 16.04.2018).
 
20.
MERCER, C. Optical metrology for fluids, combustion and solids. Springer. 2003.
 
21.
MERKISZ, J., PIELECHA, J. Observations from PEMS testing of combustion engines of different applications. Combustion Engines. 2018, 174(3), 40-55. DOI: 10.19206/CE-2018-305.
 
22.
PANIGRAHI, P.K., MURALIDHAR, K. Schlieren and shadowgraph methods in heat and mass transfer. Springer. 2012.
 
23.
PERINI, F., MILEC, P.C., REITZ, R.D. A comprehensive modeling study of in-cylinder fluid flows in a high-swirl, light-duty optical diesel engine. Computers & Fluids. 2013, 105, 113-124.
 
24.
PIELECHA, I., CIEŚLIK, W., BOROWSKI, P. et al. Reduction of the number of cylinders in internal combustion engines – contemporary trends in downsizing. Combustion Engines. 2014, 159(4), 12-25.
 
25.
PIELECHA, I., CIEŚLIK, W., SZAŁEK, A. Operation of electric hybrid drive systems in varied driving conditions. Eksploatacja i Niezawodnosc – Maintenance and Reliability. 2018, 20(1), 16-23. DOI. 10.17531/ein.2018.1.3.
 
26.
PIELECHA, J. (red.), Badania emisji zanieczyszczeń silników spalinowych. Wydawnictwo Politechniki Poznańskiej, Poznań 2017.
 
27.
SETTLES, G.S. Schlieren and shadowgraph techniques. Visualizing phenomena in Transparent Media. Springer. 2001.
 
28.
Skład benzyn i olejów napędowych, metody ich produkcji, http://www.vmc.org.pl (dostęp z dnia 27.03.2018).
 
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