Performance Characteristics of a Small Engine Fueled by Liquefied Petroleum Gas
This paper presents the results of an investigation on the performance characteristics of a small spark ignition (SI) engine fueled by liquefied petroleum gas (LPG) to be compared with gasoline fueled. The LPG delivery systems used was fuel injection while carburetor was used for gasoline. In the experiment, wide open throttle (WOT) was run on a four stroke single cylinder engine that was coupled to a 20 kW generator dynamometer to measure the engine performance such as engine torque, and fuel consumption. Others parameters included are brake power (BP), brake specific fuel consumption (BSFC) and brake thermal efficiencies (BTH). The results were compared, analyzed and suggestions were made for modification for further improvement of using LPG in a small SI engine. It was found that the engine fueled by LPG had a lower performance compared to the gasoline fueled engine.
KeywordsEngine Internal combustion Liquefied petroleum gas (LPG) Spark ignition (SI)
I would like to give my highest praise to my entire colleague and who has directly or indirectly involved in this project. Also special acknowledge to Professor Dr. Horizon Walker Gitano Briggs for their lending of LPG conversion kits to Engine Performance Laboratory, Universiti Kuala Lumpur Malaysian Spanish Institute.
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