科研之友
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摘要
This study was carried out to compare the effects of purification methods for water washed and dry washed biodiesel fuels on the performance characteristics of a compression ignition engine. Biodiesel was produced from waste cooking oil and purified by dry-washing using Amberlite and water respectively. The fuel properties showed that except for the heating value and density which were the same, other properties tested were marginally different. The water-washed (B100W) and dry-washed (B100D) biodiesel fuels were compared for performance using a four-cylinder diesel engine. The tests were carried out at full load and varying engine speed between 1000 rpm to 2800 rpm. The torque, brake power, specific fuel consumption, brake thermal efficiency and smoke density were analyzed. Results showed that at maximum speed, the brake power, torque, brake thermal efficiency and exhaust gas temperature for B100D was 4.5%, 4.4%, 5.69% and 3% lower compared to B100W respectively. The specific fuel consumption of dry-washed biodiesel was 3.2% higher than that of water-washed biodiesel. Smoke emission decreased by 0.1% for water-washed biodiesel compared to dry-washed biodiesel. Except for brake thermal efficiency, diesel fuel performed better than both biodiesel fuel samples. Both B100D and B100W biodiesel samples performed poorly in terms of torque, power and specific fuel consumption compared to diesel. Diesel showed the highest smoke emission at all engine speeds. There were some noticeable differences in the performance and smoke emissions of both biodiesel fuel samples.
- 出版日期2016-10
