TY - JOUR
T1 - Thermal Efficiency Improvements with Split Primary Fuel Injections in Semi-Premixed Diesel Combustion with Multi-Peak Shaped Heat Release
AU - Inaba, Kazuki
AU - Masuko, Yosuke
AU - Zhang, Yanhe
AU - Kobashi, Yoshimitsu
AU - Shibata, Gen
AU - Ogawa, Hideyuki
N1 - Funding Information:
This work was supported by Council for Science, Technology and Innovation (CSTI), Cross-ministerial Strategic Innovation Promotion Program (SIP), “Innovative combustion technology” (funding agency: JST).
Publisher Copyright:
© 2019 SAE Japan and SAE International.
PY - 2019/12/19
Y1 - 2019/12/19
N2 - To improve the combustion characteristics in semi-premixed diesel combustion, consisting in the first-stage premixed combustion of the primary fuel injection and the second-stage spray combustion of the secondary injection, the effect of splitting the primary injection was investigated in a diesel engine and analyzed with a CFD. The indicated thermal efficiency improves due to reductions in heat transfer losses to the in-cylinder wall and the combustion noise is suppressed with the split primary injections. The CFD analysis showed that the reduction in heat transfer loss with the split primary injections is due to a decrease in the combustion quantity near the combustion chamber wall.
AB - To improve the combustion characteristics in semi-premixed diesel combustion, consisting in the first-stage premixed combustion of the primary fuel injection and the second-stage spray combustion of the secondary injection, the effect of splitting the primary injection was investigated in a diesel engine and analyzed with a CFD. The indicated thermal efficiency improves due to reductions in heat transfer losses to the in-cylinder wall and the combustion noise is suppressed with the split primary injections. The CFD analysis showed that the reduction in heat transfer loss with the split primary injections is due to a decrease in the combustion quantity near the combustion chamber wall.
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U2 - 10.4271/2019-01-2170
DO - 10.4271/2019-01-2170
M3 - Conference article
AN - SCOPUS:85084417809
SN - 0148-7191
JO - SAE Technical Papers
JF - SAE Technical Papers
IS - December
T2 - 2019 JSAE/SAE Powertrains, Fuels and Lubricants International Meeting, JSAE 2019
Y2 - 26 August 2019 through 29 August 2019
ER -