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An investigation on Cl engine characteristics using pork lard methyl ester at various injection pressures and injection timings

机译：各种注射压力和喷射定时用猪肉甲基酯的CL发动机特性研究

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In recent years, exponential growth in population and accompanying surges in energy demands have created huge power requirements. This study explores pork lard methyl ester (PLME) produced from waste pork lards, an economically competitive contender to food grade oils. Using pork lards for biodiesel production serves the dual purpose of cheap biodiesel production and safe disposal of pork lards from meat processing facilities. The objective of this study is to compare the performance, emission, and combustion characteristics of PLME20-fuelled diesel engines under different combinations of injection pressures and injection timings. Experimental results have shown that efficiency is increased by 3% when injection pressure is increased to 240 bar with retarded injection timing of 21 degrees before top dead center (bTDC) at full load. The brake-specific energy consumption is found to decrease by 1.88 MJ/kWh for the same blend (PLME20 at 240 bar, 21 degrees bTDC). In the emission point of view, hydrocarbon and carbon monoxide emissions are found to be decreased drastically for increased pressure with retardation of injection timing. However, nitrogen oxide emission is found to be increased for higher injection pressures. Hence, PLME of 20% blend in compression ignition engine exhibits better characteristics with the higher injection pressures and retardation of injection timing.
机译：近年来，人口的指数增长和能源需求飙升都产生了巨大的电力要求。本研究探讨了从废猪肉猪油生产的猪肉甲基酯（PLME），这是一种经济竞争性竞争者对食品级油。使用猪肉猪油用于生物柴油生产服务于肉类加工设施的廉价生物柴油生产和安全处置猪肉的双重目的。本研究的目的是在注射压力和喷射定时的不同组合下比较PLME20燃料柴油发动机的性能，发射和燃烧特性。实验结果表明，当注射压力增加到240巴时，效率提高了3％，在全载下的顶部死亡中心（BTDC）之前21度的延迟注射时间为21度。在相同的混合物（240巴特，21度BTDC）中，发现特定于制动的能量消耗可降低1.88 mJ / kWh（PLME20，21度BTDC）。在发射的视角中，发现烃和一氧化碳排放被急剧下降，以增加具有注射正时的延迟的压力。然而，发现氮氧化物排放增加以增加更高的注射压力。因此，在压缩点火发动机中的20％混合物的PLME具有更好的特性，具有更高的注射压力和注射正时的延迟。

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