Natural Gas Vehicle (NGV) Engine Performance Testing

Abdullah Firdaos, Mohd Lidin (2008) Natural Gas Vehicle (NGV) Engine Performance Testing. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Natural Gas Vehicle (NGV) looks like the other vehicle. The difference in NGV is the power source that the vehicles use. NGV use natural gas like Liquid Petroleum Gas (LPG) and Compressed Natural Gas (CNG) as the power source. Natural gas is acknowledged as being the mainstream alternative fuel. In Malaysia, pollution is not the only reason to introduce natural gas-power vehicles but economic is another factor. Besides, the country has massive, under exploited natural gas reserve. Natural gas reserve is four times larger than oil reserve. As such, a study has been conducted on vehicle that power by natural gas. This research aims to study the engine performance of vehicle using natural gas system and gasoline system. Compressed Natural Gas (CNG) is common gas use for NGV. It has been accepted widely as an alternative to gasoline. The engine performance parameters that can be determined are power, torque, and airfuel ratio (AFR). Torque is a good indicator of an engine ability to do work. Power is defined as the rate of work of the engine. The fuel consumption for both systems also can be calculated from the AFR value. The engine performance testing is conducted to show the performance for both systems. The chassis dynamometer can be used to handle the testing. The expected result from this testing is the engine performance using NGV system is less than using gasoline system. The suggestion to improve the engine performance using NGV system will be make. The comparison result for both engine systems is important. The good engine performance with less emission and economical for users is main target for manufacturer while producing the vehicle.

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