RESEARCH ON SELECTING A SUITABLE EARLY INJECTION ANGLE WHEN CONVERTING A DIESEL ENGINE TO USING DUAL FUEL DIESEL/ETHANOL

Abstract

This article presents the results of research on selecting a suitable early injection angle at full load when converting
a diesel engine to using dual fuel diesel/ethanol. The original diesel engine had a traditional mechanically controlled
diesel fuel system using a VE high-pressure distribution pump. The authors performed simulations with early injection
angles of 20o
CA, 15o
CA, 10o
CA (initial engine early injection angle is 20o
TK) when using diesel fuel and dual fuel 10%
ethanol (DE10) in mode 100 % load. The influence of early injection angle on power, torque and concentration of
emission components of a diesel/ethanol dual-fuel engine is analyzed and evaluated to select a reasonable early
injection angle. Research results show that the reasonable advance injection angle when using dual fuel 10% ethanol
(DE10) at 100% load mode is determined to be 15o
CA, a decrease of 5o
CA compared to the initial advance injection angle.