The influence of injection timing on the combustion characteristics for the heterogeneous combustion field using impinging injection

• Autorzy: Kawakami T.

Identyfikatory

DOI

10.5604/01.3001.0012.4343

• Języki publikacji: EN

Abstrakty

EN

It is very important to achieve the low particulate and low emissions under high power operation conditions in practical industrial engine and turbine combustion. Several techniques for reducing the emissions have been proposed and a large amount of experimental data has been published. It is well known that the combustion field in practical industrial diesel engine are strongly influenced by the behaviour of injection, distribution of droplets and the premixed ratio of the combustion chamber. As the first step of this study, experiments have been carried out to examine the combustion characteristics of heterogeneous combustion field by using impinging injection and Split injection in a closed chamber. The combustion chamber is equipped with pintle type injection nozzles on each of the opposite walls along the length of the bomb. In this study, we call it “impinging injection” when the injection is performed at same time by two nozzles facing each other and “split injection” when the impinging injection is performed at two different timing. The main conclusions are as follows: 1) the most suitable conditions of injection timing exists for improving the maximum burning pressure and total burning time by using impinging injection; 2) the flame speed can be possible to control by using impinging injection timing from the ignition; 3) the heat release rate for Split injection is larger than that of standard impinging injection.

Słowa kluczowe

EN

impinging injection; split injection; heat release rate

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2018
• Tom: Vol. 25, No. 3
• Strony: 283--288
• Opis fizyczny: Bibliogr. 13 poz., rys.

Twórcy

autor

Kawakami T.

• Faculty of Science and Engineering Hosei University Kajino-cho, Koganei, Tokyo 184-8584 Japan

Bibliografia

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• [3] Tsutsumi, Y., Hoshina, K., Iijima, A., Shoji, H., Analysis of the combustion characteristics of HCCI engine operationg on DME and methane, SAE Paper No. 2007-32-0041, 2007.
• [4] Lim, O. T., et al., The fuel unmixedness effect on DME HCCI combustion using rapid compression and expansion machine, SAE Paper No. 2007-42-0042, 2007.
• [5] Daisho, Y., et al., Contolling combustion and exhaust emissions in a direct-injection diesel engine dual-fueled with natural gas, SAE Paper, No. 952436, 1995.
• [6] Tomita, E., et al., Effects of EGR and early injection of diesel fuel on combustion characte-ristics and exhaust emissions in a methane dual fuel engine, SAE Paper No. 2002-01-2723, 2002.
• [7] Hill, P. G., et al., NOx reduction from heavy-duty diesel engine with direct injection of natural gas and cooled exhaust gas recirculation, International Journal of Engine Research, Vol. 5, No. 2, pp. 175-191, 2003.
• [8] Tomita, E., et al., Combustion characteristics and performance of supercharged micro-pilot natural gas engine, Proceedings of FISITA 2006 World Automotive Congress, Paper No. F2006 p230, pp. 1-10, 2006.
• [9] Ozaki, J., Iida, N., Effect of degree of unmixedness on HCCI combustion based on experiment and numerical analysis, SAE Paper No. 2006-32-0046, 2006.
• [10] Sugiyama, H., Kawakami, T., Influence of blend fuels on combustion characteristics for small diesel engine, Small Engine Technology Conference SAE of JAPAN and SAE International, 20076523/2007-32-0023, 2007.
• [11] Kawakami, T., Combustion characteristics for small diesel engine by using emulsified blend fuels of vegetable oil and light oil, Journal of KONES Powertrain and Transport, Vol. 18, No. 4, pp. 185-190, 2011.
• [12] Kawakami, T., A study of emission reduction by using alcohol blend fuel for small diesel engine, Journal of KONES Powertrain and Transport, Vol. 21, No. 1, pp. 125-130, 2014.
• [13] Kawakami, T., Experimental study of emission reduction by using alcohol blended fuel for small gasoline engine, Journal of KONES Powertrain and Transport, Vol. 22, No. 2, pp. 115-120, 2015.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).