Prosopis juliflora methyl ester (PJME) was produced from a non edible feedstock found in the arid and semi-arid regions all over the globe. The Biodiesel from this species was produced with respect to optimum transesterification process variables. An experimental investigation was done using the Methyl ester in a DI diesel engine to estimate the performance, combustion and emission characteristics at a brake power of 5.2 KW and an unvarying speed of 1500 rpm. Experimental studies on the methyl ester revealed that there was a decrease in the brake thermal efficiency by 8.34 % and increase in the emission of Carbon monoxide (CO), unburnt hydrocarbon (HC) and smoke by 10.7 %, 16 % and 11 %, respectively. PJME exhibited NO_x emission of 10.71 %, lower heat release rate (HRR) of 23 %, and 7 % peak pressure when compared to neat diesel under 100 % loading condition. From the successive experiments conducted with Prosopis juliflora methyl ester, B20 Biodiesel blend was found the best suitable blend for marine engines as the results almost matches with the neat diesel. Also, biodiesel from this non edible species proved that it was an inherent source for alternative fuel, with environmental benefits.

中文翻译：

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大花无花果甲酯生产及其对DI柴油机的影响研究

从世界各地的干旱和半干旱地区发现的一种不可食用的原料生产的Prosopis juliflora甲酯（PJME）。就最佳酯交换过程变量而言，生产了该物种的生物柴油。在DI柴油机中使用甲基酯进行了实验研究，以估计制动功率为5.2 KW和恒定转速为1500 rpm时的性能，燃烧和排放特性。对甲酯的实验研究表明，制动热效率降低了8.34％，一氧化碳（CO），未燃烧的碳氢化合物（HC）和烟气的排放分别增加了10.7％，16％和11％。 。PJME展示了NO _x与100％负载条件下的纯柴油相比，排放量降低了10.71％，放热率（HRR）降低了23％，峰值压力降低了7％。通过使用Prosopis juliflora甲酯进行的连续实验，发现B20生物柴油混合物是最适合船用发动机的混合物，因为其结果几乎与纯柴油匹配。同样，来自这种非食用物种的生物柴油证明，它是替代燃料的固有来源，具有环境效益。