Assessing the Suitability of DME for Powering SI Engines by Analyzing In-Cylinder Pressure Change

Abstract

This article discusses an analysis of in-cylinder pressure change during combustion of LPG-DME fuel in IC engines. The aim of the study is to present a method for assessing the possibility of using DME as a combustion activator, and to establish its impact on the process. The study proposes a method for assessing the shift of the maximum value of cylinder pressure as a parameter which enables the impact of DME on the combustion process to be evaluated. The method was developed on the basis of bench tests carried out on an SI engine with a capacity of 1.6 dm3.

Keywords

• internal combustion engine
• indicator diagram
• dynamics
• DME
• alternative fuel
• in-cylinder pressure