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首页> 外文期刊>International journal of green energy >AN EXPERIMENTAL INVESTIGATION ON PERFORMANCE, EMISSION, AND COMBUSTION CHARACTERISTICS OF A DIESEL ENGINE FUELED WITH METHYL ESTERS OF WASTE PORK LARD AND DIESEL BLENDS
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AN EXPERIMENTAL INVESTIGATION ON PERFORMANCE, EMISSION, AND COMBUSTION CHARACTERISTICS OF A DIESEL ENGINE FUELED WITH METHYL ESTERS OF WASTE PORK LARD AND DIESEL BLENDS

机译：掺有废猪油和柴油混合料的甲基酯的柴油机性能，排放和燃烧特性的实验研究

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The aim of this research work is to investigate the possibility of using methyl esters from animal fats as an alternative fuel for diesel. Biodiesel is an alternative fuel produced from different kinds of vegetable oils and animal fats. It is an oxygenated, non-toxic, sulfur free, biodegradable, and renewable fuel which can be used in diesel engines without any significant modification. In this research work, waste pork lard methyl ester (WPLME) is obtained from inedible animal tallow, namely, waste pork lard by base-catalyzed transesterification with methanol in the presence of potassium hydroxide (KOH) as catalyst. Properties of pure diesel, pure biodiesel (B100), and Us blends of 25%, 50%, and 75% by volume called B25, B50, and B75 are determined. The effects of waste pork lard methyl ester (biodiesel) addition to pure diesel on the performance, emission, and combustion characteristics of naturally aspirated, direct injection, diesel engine have been experimentally investigated at the maximum torque and constant engine speed of 1500 rpm. The experimental test results showed that the addition of WPLME to diesel slightly decreases the brake thermal efficiency of the engine and increases specific fuel consumption when compared to pure diesel. This is due to lower calorific value of WPLME. The brake thermal efficiency is decreased by 6.2% and specific fuel consumption is increased by 23.5% for pure WPLME (B100) when compared to pure diesel at full load of the engine. However for B25 biodiesel blend, the brake thermal efficiency is very close to pure diesel at full load of the engine. The significant improvement in reduction of carbon monoxide (CO), hydrocarbon (HC), oxides of nitrogen (NOx), and smoke emission is found for WPLME and Us blends during higher loading conditions. For pure WPLME, CO, HC, NOx, and smoke emission are decreased by 23.1%, 31.5%, 5.15%, and 64%, respectively, when compared to pure diesel at full load of the engine. WPLME exhibited lower heat release rate and shorter ignition delay when compared to pure diesel at full load conditions. On the whole, methyl esters of waste pork lard and its blends can be used as an alternative fuel for diesel in direct injection diesel engine without any significant engine modification.
机译：这项研究工作的目的是研究使用动物脂肪中的甲酯作为柴油替代燃料的可能性。生物柴油是由不同种类的植物油和动物脂肪生产的替代燃料。它是一种含氧，无毒，无硫，可生物降解和可再生的燃料，无需任何重大改动即可用于柴油发动机。在这项研究工作中，废弃的猪油甲酯（WPLME）是从不可食用的动物脂中得到的，即在氢氧化钾（KOH）作为催化剂存在下，通过甲醇与甲醇进行碱催化的酯交换反应而得到的。确定了纯柴油，纯生物柴油（B100）和25％，50％和75％体积的B25，B50和B75的US混合物的性能。在最大扭矩和恒定发动机转速1500 rpm的条件下，通过实验研究了纯柴油中废猪油甲酯（生物柴油）对自然吸气，直喷柴油发动机的性能，排放和燃烧特性的影响。实验测试结果表明，与纯柴油相比，在柴油中添加WPLME会稍微降低发动机的制动热效率并增加比燃料消耗。这是由于WPLME的热值较低。与纯WPLME（B100）相比，在发动机满负荷情况下，制动器的热效率降低了6.2％，比油耗增加了23.5％。但是，对于B25生物柴油混合物，在发动机满负荷时，制动器的热效率非常接近纯柴油。对于WPLME和Us共混物，在较高的负载条件下，其一氧化碳（CO），碳氢化合物（HC），氮氧化物（NOx）和烟气排放的减少都有显着改善。对于纯WPLME，与在发动机满载时的纯柴油相比，CO，HC，NOx和烟气排放分别减少了23.1％，31.5％，5.15％和64％。与纯柴油在满负荷条件下相比，WPLME的放热率更低，点火延迟更短。总体而言，废猪油的甲酯及其混合物可以用作直喷式柴油发动机的柴油替代燃料，而无需对发动机进行任何重大改动。

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