The combustion characteristics of compression ignition engine fuelled partially by LPG-Diesel blends (Simulation study)

This paper proposes a numerical investigation of the behavior dual diesel-Liquefied Petroleum Gas (LPG) engine. Numerical analysis is performed with aid simulation program Diesel-RK. Three volumetric LPG blends: 5 % LPG, 8 and 10%LPG are inducted air intake for single cylinder,4-stroke, constant speed diesel engine fixed compression ratio 15.5/1. No dramatic change in combustion pressure seen 5%,8%, 10% compared to case 0% (diesel only). Diesel's maximum energy production 32.53 (1/deg.) at 365 degrees BTDC, this lowered 30.28 same crank angle when using LPG. Maximum temperature rise little bit by 0.14 0.41 10 Increasing injection rate reduces efficiency mechanical slightly. The results found slight increase NOx considerable reduction captured Bosch smoke number (BSN) used diesel. obtained validated findings other researchers.