Measurement of flame temperature and soot amount for effective NOx and PM reduction in a heavy duty diesel engine
More details
Hide details
Company friend of New A.C.E. Institute Co. Ltd., Japan.
Publication date: 2019-10-01
Combustion Engines 2019,179(4), 32–39
To reduce exhaust NOx and smoke, it is important to measure flame temperature and soot amount in combustion chamber. In diesel combustion it is effective to use the two-color method for the measurement of the flame temperature and KL factor, which is related with soot concentration. The diesel flame was directly and continuously observed from the combustion chamber at running engine condition by using a bore scope and a high-speed video camera. The experimental single cylinder engine has 2.0-liter displacement and has the ability with up to five times of the boost pressure than the naturally aspirated engine by external super-charger. The devices of High Boost, Wide Range and High EGR rate at keeping a relatively high excess air ratio were installed in this research engine in order to reduce exhaust NOx emission without smoke deterioration from diesel engines. The video camera nac GX-1 was used in this study. From observed data under the changing EGR rates, the flame temperature and KL factor were obtained by the software of two-color method analysis. The diesel combustion processes are understood well by analyzing high-speed movies of the diesel flame motion and its temperature. The NOx and smoke are mutually related to maximum flame temperature and also it is possible to reduce simultaneously both NOx and soot emissions by high EGR rate in a single cylinder diesel engine.
SHUNDOH, S., KAKEGAWA, T., TSUJIMURA, K., KOBAYASHI, S. a study on combustion of direct injection diesel engine with 150 MPa injection pressure. Proceedings of International Symposium COMODIA 90. 1990, 607-612.
WOODS, M., KAMO, R., BRYZIK, W. High pressure fuel injection for high power density diesel engines. SAE Technical Paper 2000-01-1186. 2000. DOI: 10.4271/2000-01-1186.
ITOH, S., NAKAMURA, K. Reduction of diesel exhaust gas emission with common rail system. Journal of JSAE. 2001, 55(9), 46-52.
AOYAGI, Y., KUNISHIMA, E., ASAUIMI, Y. et al. Diesel combustion and emission using high boost and high injection pressure in a single cylinder engine. JSME International Journal, Series B. 2005, 48(4), 648-655.
ENDO, S., OTANI, T., KAKINAI, A. An improvement of pumping loss of high boosted diesel engines. SAE Technical Paper 885102. 1988. DOI: 10.4271/885102.
SUGIHARA, H., NAKAGAWA, H., SHOUYAMA, K., YAMAMOTO, A. Hino New K13C diesel engine equipped with common rail type fuel injection equipment. Engine Technology. 1999, 1(4), 40-45.
TSUJITA, M., NIINO, S., ISHIZUKA, T. et al. Advanced fuel economy in Hino New P11C turbocharged and charge-cooled heavy duty diesel engine. SAE Technical Paper 930272. 1993. DOI: 10.4271/930272.
STOVER, T., REICHENBACH, D., LIFFERTH, E. The Cummins Signature 600 heavy-duty diesel engine. SAE Technical Paper 981035. 1998, DOI: 10.4271/981035.
AOYAGI, Y., OSADA, H., MISAWA, M. et al. Advanced diesel combustion using of wide range, high boosted and cooled EGR system by single cylinder engine. SAE Technical Paper 2006-01-0077. 2006. DOI: 10.4271/2006-01-0077.
KNECHT, W. European emission legislation of heavy duty diesel engines and strategies for compliance. Proceedings of the Thermo-and fluid Dynamic Processes in Diesel Engines (THIESEL 2000), 2000, 289-302.
ADACHI, T., AOYAGI, Y., KOBAYASHI, M. et al. Effective NOx reduction in high boost, wide range and high EGR rate in a heavy duty diesel engine. SAE Technical Paper 2009-01-1438. 2009. DOI: 10.4271/2009-01-1438.
Japan Ministry of Environment, About New Automotive Emission Standards in future (8th Report) (in Japanese), 2005.
The international council on clean transportation (icct), NOx emissions from heavy-duty and light-duty diesel vehicles in the EU: Comparison of real-world performance and current type-approval requirement. Briefing, December 2016.
KAMIMOTO, T., MATSUOKA, S., MATSUI, Y., AOYAGI, Y. PIME. 1975, C96/75, 139.
AOYAGI, Y., KAMIMOTO, T., MATSUI, Y., MA-TSUOKA, S. A gas sampling study on the formation processes of soot and NO in a DI diesel engine. SAE Technical Paper 800254. 1980, DOI: 10.4271/800254.
AHN, S.G., KAMIMOTO, T., MATSUI, Y., MATSUOKA, S. Transaction of JSAE. 1981, 47(417), 896-903.
TATE, R. Journal of the ILASS-Japan. 2009, 18(63), 103-110.
KOBAYASHI, S., SAKAI, T., NAKAHIRA, T. et al. Measurement of flame temperature distribution in D.I. diesel engine with high pressure fuel injection. SAE Technical Paper 920692. 1992, DOI: 10.4271/920692.
AOYAGI, Y., ASAUMI, Y., KUNISHIMA, E., HA-RADA, A. Visualized analysis of a pre-mixed diesel combustion under the high boosting engine condition. Proceedings of International Symposium COMODIA 2001. 2001, 434-440.
GENZALE, C.L., REITZ, R.D., MUSCULUS, M.P.B. Effects of jet-bowl and jet-jet interactions on late-injection low-temperature heavy-duty diesel combustion. Proceedings of the Thermo-and Fluid Dynamic Processes in Diesel Engines (THIESEL 2008). 2008, 277-297.
KUWAHARA, K., KAWAI, T., ANDO, H. Influence of flow field structure after the distortion of tumble on lean-burn flame structure. Proceedings of International Symposium COMODIA 94. 1994, 89-94.
MANCARUSO, E., MEROLA, S.S., VAGLIECO, B.M. Study of the multi-injection combustion process in a transparent direct injection common rail diesel engine by means of optical techniques. International Journal of Engine Research. 2008, 9(6), 483-498.
SHIOZAKI, T., MIYASHITA, A., AOYAGI, Y., JOKO, I. The analysis of combustion flame in a DI diesel engine (part 2-hydroxyl radical emission versus temperature). Proceedings of International Sympo-sium COMODIA 94. 1994, 23-528.
FUJINO, R., AOYAGI, Y., OSADA, H. et al. Direct observation of clean diesel combustion using a bore scope in a single cylinder HDDE. SAE Technical Paper 2009-01-0645. 2009. DOI: 10.4271/2009-01-0645.
AOYAGI, Y., OSADA, H., SHIMADA, K., TATE, R. High EGR rate combustion and its flame temperature observed by a bore scope system in a heavy duty diesel engine. Proceedings of the Thermo-and fluid Dynamic Processes in Diesel Engines (THIESEL 2012). 2012.
AOYAGI, Y. Improvement of BSFC and effective NOx and PM reduction by high EGR rates in heavy duty diesel engine. Combustion Engines. 2017, 171(4), 4-10. DOI: 10.19206/CE-2017-401.
World-wide trends in powertrain system development in light of emissions legislation, fuels, lubricants, and test methods
Combustion Engines
Impact of the use of comfort devices on the exhaust toxic compounds from a modern PC car with spark ignition engine
Maciej Siedlecki, Jerzy Merkisz, Michał Dobrzyński, Kamil Kubiak
Combustion Engines