This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Development of LPG SI and CI Engines for Heavy Duty Vehicles
Technical Paper
2000-05-0166
Annotation ability available
Sector:
Event:
Language:
English
Abstract
Development of LPG SI and CI engines for heavy duty vehicles has been carried out. In order to measure the performance and emissions of an LPG lean burn SI engine, the piston cavity, swirl ratio, and propane-butane fuel ratio were varied and tested. Compared to the bathtub and dog dish cavities, the nebula type cavity showed the best performance in terms of cyclic variation and combustion duration. High swirl improved combustion by achieving a high thermal efficiency and low NOx emissions. A feasibility study of an LPG DI diesel engine also has been carried out to study the effectiveness of the selected cetane enhancing additives:Di-tertiary-butyl peroxide (DTBP). When more than 5 wt% DTBP was added to the base fuel, stable engine operation over a wide range of engine loads was possible. The thermal efficiency of LPG fueled operation was found to be comparable to diesel fuel operation at DTBP levels over 5 wt%. Exhaust emissions measurements showed that NOx and smoke levels can be significantly reduced using the LPG+DTBP fuel blend compared to a light diesel fuel at the same experimental conditions.
Recommended Content
Authors
- Shinichi Goto - 1) Mechanical Engineering Laboratory, 1-2 Namiki, Tsukuba, Japan 2) Nissan Diesel Motor Ltd., 1-1, Ageo-shi, Saitama, Japan 3) Iwatani International Corporation, 21-8 Nishi-shimbashi 3-Chome, Minato-Ku, Tokyo, Japan
- Daeyup Lee - 1) Mechanical Engineering Laboratory, 1-2 Namiki, Tsukuba, Japan 2) Nissan Diesel Motor Ltd., 1-1, Ageo-shi, Saitama, Japan 3) Iwatani International Corporation, 21-8 Nishi-shimbashi 3-Chome, Minato-Ku, Tokyo, Japan
- Naoya Harayama - 1) Mechanical Engineering Laboratory, 1-2 Namiki, Tsukuba, Japan 2) Nissan Diesel Motor Ltd., 1-1, Ageo-shi, Saitama, Japan 3) Iwatani International Corporation, 21-8 Nishi-shimbashi 3-Chome, Minato-Ku, Tokyo, Japan
- Fumitaka Honjo - 1) Mechanical Engineering Laboratory, 1-2 Namiki, Tsukuba, Japan 2) Nissan Diesel Motor Ltd., 1-1, Ageo-shi, Saitama, Japan 3) Iwatani International Corporation, 21-8 Nishi-shimbashi 3-Chome, Minato-Ku, Tokyo, Japan
- Hiroki Ueno - 1) Mechanical Engineering Laboratory, 1-2 Namiki, Tsukuba, Japan 2) Nissan Diesel Motor Ltd., 1-1, Ageo-shi, Saitama, Japan 3) Iwatani International Corporation, 21-8 Nishi-shimbashi 3-Chome, Minato-Ku, Tokyo, Japan
- Hidekazu Honma - 1) Mechanical Engineering Laboratory, 1-2 Namiki, Tsukuba, Japan 2) Nissan Diesel Motor Ltd., 1-1, Ageo-shi, Saitama, Japan 3) Iwatani International Corporation, 21-8 Nishi-shimbashi 3-Chome, Minato-Ku, Tokyo, Japan
- Yoshitaka Wakao - 1) Mechanical Engineering Laboratory, 1-2 Namiki, Tsukuba, Japan 2) Nissan Diesel Motor Ltd., 1-1, Ageo-shi, Saitama, Japan 3) Iwatani International Corporation, 21-8 Nishi-shimbashi 3-Chome, Minato-Ku, Tokyo, Japan
- Makihiko Mori - 1) Mechanical Engineering Laboratory, 1-2 Namiki, Tsukuba, Japan 2) Nissan Diesel Motor Ltd., 1-1, Ageo-shi, Saitama, Japan 3) Iwatani International Corporation, 21-8 Nishi-shimbashi 3-Chome, Minato-Ku, Tokyo, Japan
Topic
Citation
Goto, S., Lee, D., Harayama, N., Honjo, F. et al., "Development of LPG SI and CI Engines for Heavy Duty Vehicles," SAE Technical Paper 2000-05-0166, 2000.Also In
References
- Goto, S. et al. 1996 LPG engine research and development in Japan Int'l Congress on Transportation Electronics (Convergence '96)
- Lee, D. et al. 1999 Observation of Flame Propagation in an LPG Lean Burn SI Engine SAE paper 1999-01-0570
- Goto, S. et al. 1999 Performance and emissions of an LPG lean-burn engine for heavy duty vehicles SAE paper 1999-01-1513
- Lee, D. et al. 1999 Spectroscopic Investigation of the Combustion Process in an LPG Lean-Burn SI Engine SAE paper 1999-01-3510
- Goto, S. et al. 1999 Development of an LPG DI Diesel Engine using Cetane Number Enhancing Additives SAE paper 1999-01-3602
- Lee, D. et al. 2000 Chemical Kinetic Study of a Cetane Number Enhancing Additive for an LPG DI Diesel Engine SAE paper 2000-01-0193
- Warth, V et al. 1998 Computer aided design of gas-phase mechanisms- Application to the modeling of normal butane oxidation Combust. Flame 114 81
- Griffiths, J.F. et al. 1990 Experimental and numerical studies of the combustion of ditertiary butyl peroxide in the presence of oxygen at low pressures in a mechanically stirred closed vessel Combust. Flame 81 304 316
- Hidaka, Y. et al. High-temperature pyrolysis of ketene in shock waves Combust. Flame 99 18 28
- Inomata, T. et al. 1990 The role of additives as sensitizers for the spontaneous ignition of hydrocarbons Twenty-third Symp. (Int') on Combust., The Combustion Institute 1759-1766
- Kee, R.J. et al. 1993 Chemkin-II:A FORTRAN Chemical Kinetics Package for the Analysis of Gas Phase Chemical Kinetics, Sandia Laboratories Report, SAND 89-8009B
- Muller, C. et al. 1995 THERGAS:a computer program for the evaluation of thermochemical data of molecules and free radicals in the gas phase J.Chem. Phys. 92 1154 1178