Cycle-to-cycle Transient Characteristics of Diesel Emissions during Starting 1999-01-3495
Changes in exhaust gas emissions during starting in a DI diesel engine were investigated. The THC after starting increased until around the 50th cycle when the fuel deposited on the combustion chamber showed the maximum, and THC then decreased to reach a steady value after about 1000 cycles when the piston wall temperature became constant. The NOx showed an initial higher peak just after starting, and increased to a steady value after about 1000 cycles. Exhaust odor had a strong correlation with THC, and at the early stage odor was stronger than would be expected from the THC concentration. The THC increased with increased fuel injection amounts, decreased cranking speeds, and fuels with higher viscosity, higher 90% distillation temperature, and lower ignitability.
Citation: Ogawa, H., Raihanl, K., Iizuka, K., and Miyamoto, N., "Cycle-to-cycle Transient Characteristics of Diesel Emissions during Starting," SAE Technical Paper 1999-01-3495, 1999, https://doi.org/10.4271/1999-01-3495. Download Citation
Author(s):
Hideyuki Ogawa, Khandoker A. Raihanl, Ken-ichi Iizuka, Noboru Miyamoto
Affiliated:
Hokkaido Univ.
Pages: 9
Event:
International Fuels & Lubricants Meeting & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Diesel Engines: Combustion and Emissions-SP-1484, SAE 1999 Transactions - Journal of Fuels and Lubricants-V108-4
Related Topics:
Combustion chambers
Diesel / compression ignition engines
Fuel injection
Starters and starting
Pistons
Nitrogen oxides
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