首页|Investigation of the combustion characteristics of a dual direct injection fuel (diesel-propane) strategy on a rapid compression expansion machine
Investigation of the combustion characteristics of a dual direct injection fuel (diesel-propane) strategy on a rapid compression expansion machine
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NETL
NSTL
Elsevier
For internal combustion engines, liquid petroleum gas (LPG) is a promising alternative fuel due to its typicalspecific calorific value. A rapid compression and expansion machine (RCEM) that resembles a compressionignition (CI) engine has been the subject of experimental research using a dual direct injection fuel. For thisapplication, 10 %–100 % diesel-propane (DP) is applied based on the percentage of the low heating value (LHV)with the propane injection timing varying from 0◦ to 40◦ before top dead center and maintaining the dieselinjection timing at 10◦ before top dead center (BTDC). The compression ratio was varied between 17 and 19 byadjusting the connecting rod of the RCEM. The outcome indicates that at the compression ratio of 17, propanepromoted no auto-ignition. Meanwhile, at a compression ratio (CR) of 19, the auto-ignition was enhanced andoccurred earlier as the amount of propane increased. However, a longer ignition delay was produced as thepropane fraction was above 60 %. The highest indicated thermal efficiency (ITE) was produced at a propanefraction of 40 % at 40~oBTDC. At propane fractions greater than 60 %, the highest efficiency was achieved at 20◦-30~oBTDC start of injection (SOI) of propane for both CR 17 and 19.
RCEMDual fuel engineLPG-dieselDirect injection
Ardhika Setiawan、Ocktaeck Lim
展开 >
Graduate School of Mechanical Engineering, University of Ulsan, San 29, Mugeo2-dong, Nam-gu, Ulsan, 44610, South Korea
School of Mechanical Engineering, University of Ulsan, San 29, Mugeo2-dong, Nam-gu, Ulsan, 44610, South Korea
NETL
NSTL
Elsevier
