Browse Publications Technical Papers 2001-01-1808
2001-12-01

Engine Performance and Exhaust Gas Emissions Characteristics of (CNG/Diesel) Dual-Fuel Engine 2001-01-1808

Single-cylinder diesel engines are widely utilized in Malaysia to generate electricity on small scales in open markets and rural areas. This paper represents a brief study carried out to: (1) understand the nature of exhaust emissions (NOx, CO and CO2) when adopting a dual fuel system using Compressed Natural Gas (CNG) in a single-cylinder, stationary diesel engine, and (2) compare the dual-fuel emission and engine performance results to those of diesel. The use of CNG is considered a possible solution for reducing the toxic emissions from these engines. This work shows that by using the dual fuel system, NOx, CO and CO2 concentrations in the exhaust gases were, on average, reduced by 54%, 59% and 31% respectively when the engine runs at maximum-load operating conditions. The average power output from the engine operating at dual fuel was 10% higher than that operating on diesel over the tested range of engine speeds.

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