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Engine performance of a single cylinder direct injection diesel engine fuelled with blends of Jatropha Curcas oil and stardard diesel fuel

机译:单缸直喷式柴油发动机的发动机性能,以麻疯树油和标准柴油燃料的混合物为燃料

摘要

Blends of Jatropha Curcas oil and standard diesel fuel were evaluated (without pre-heating). The engine tests for the blends were performed in a Petter single cylinder direct injection diesel engine under steady state conditions at high loads. Engine speeds between 1300-1700 rpm were selected for the engine tests. Torque, power output, specific fuel consumption, in cylinder pressure, ignition delay, rate of heat released and exhaust composition were evaluated. The tested blends between 10-20% of oil shown lower effective torque and power output joint to a higher specific fuel consumption related to the lower heating value of Jatropha oil compared to diesel fuel. Lower pressure peaks and rates or pressure rises were observed when Jatropha blends are used. A decrease in the rate of heat released and shorter ignition delay were observed for the blends. Decreases in HC and CO emissions were observed for blends compared to diesel fuel. Both alternatives assessed shown that the differences observed compared to diesel fuel, can be partially restored with engines regulation. The use of Jatropha oil in order to be a partial or full alternative to the use of diesel fuel for energy production was achieved.
机译:对麻风树油和标准柴油的混合物进行了评估(不进行预热)。掺混物的发动机测试是在稳定状态下高负荷的Petter单缸直喷柴油发动机中进行的。选择1300-1700 rpm的发动机转速进行发动机测试。评估了扭矩,功率输出,比燃料消耗,气缸压力,点火延迟,放热率和排气成分。经测试的10%至20%的机油混合比显示出较低的有效扭矩和功率输出,以及较高的比燃料消耗,这是由于麻风树油的热值低于柴油。当使用麻风树属共混物时,观察到较低的压力峰值和速率或压力升高。观察到掺合物的放热速率降低并且点火延迟缩短。与柴油相比,混合燃料的HC和CO排放量下降。两种评估方法均表明,与柴油相比,可以通过调节发动机部分地恢复所观察到的差异。实现了使用麻风树油,以部分替代或完全替代柴油用于能源生产。

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