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Performance and Emission Characteristics of Producer Gas Operated Dual Fuel Diesel Engine with Cooling Cleaning System

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Document pages: 12 pages

Abstract: The performance and emission characteristics of liquid fuel-producer gas operated dual-fuel engine depend on the quality of producer gas (PG) as tar content and temperature. In the present work cooling cleaning system has been adopted for the gasifier-engine system to reduce the tar content and cool the PG before inducting into the combustion chamber of the diesel engine. The experiments were conducted on 5.2 kW, DI, 4 strokes, diesel engine operated at 1500 rpm. It has been observed, improved performance and reduced emission levels for the dual-fuel operation of the engine with the use of cooling cleaning system. Experimental results showed that the brake thermal efficiency increased by 2-12 for the diesel HOME-PG dual-fuel engine operation and tar content of PG was reduced from 320mg Nm3 to about 55mg Nm3 entering to the engine. Also, the emission levels were reduced, such as hydrocarbon 11.1 -19 and carbon monoxide 10.5 -20 compared to the wet filter provided with the gasifier-engine system. However, NOx emission levels were increased by 8 because of higher temperature due to the combustion of improved quality of PG. The temperature of the PG after the cooling cleaning system was reduced to 310C-340C which is the requirement for the diesel engine operation.

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