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A comprehensive experimental investigation of green diesel as a fuel for Cl engines

机译：绿色柴油作为CL发动机燃料的全面实验研究

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摘要

Many possibilities have been explored so far for replacing petro-diesel with biodiesel and hybrid fuel, but none of these bio-fuels could completely substitute the petro-diesel with or without modification in the CI engine. In this perspective, renewable diesel or green diesel has been gaining popularity due to its higher cetane index and calorific value than that of petro-diesel, biodiesel, and hybrid fuel. This study investigates the production of green diesel from waste cooking oil (WCO) by hydro-processing and TBP distillation. The fuel properties of the green diesel thus produced were estimated using ASTM/EN standards and thereafter green diesel (G100) and its blends (G10, G20, G30 & G50) were used as fuel in a CI engine to analyze the effect on engine combustion, performance and emission characteristics. The results obtained were compared with petro-diesel, optimized biodiesel blend B30 and hybrid fuel (HB-1) to explore its efficacy under same experimental test rig and operating conditions. Over the entire loading conditions, green diesel blends showed higher BTE with lower BSEC. The emissions of CO, UHC and smoke opacity reduced, but a slight increase in NOX level was observed. The shorter ignition delay and higher cetane index of green diesel generated peaks of CP, HRR and ROPR near TDC as compared to the other tested fuels.
机译：到目前为止已经探讨了许多可能性，以用生物柴油和混合燃料取代石油柴油，但这些生物燃料都不可以将石油柴油与CI发动机中的修改完全替代。在这种观点中，由于其较高的十六烷值指数和热值，可再生柴油或绿色柴油在比石油柴油，生物柴油和混合燃料更高的热值，这一直受到普及。本研究通过水力加工和TBP蒸馏来研究从废食用油（WCO）的绿色柴油的生产。由此产生的绿色柴油的燃料特性使用ASTM / EN标准估计，然后使用绿色柴油（G100）及其共混物（G10，G20，G30和G50）作为CI发动机中的燃料，以分析对发动机燃烧的影响，性能和排放特征。将得到的结果与石油柴油，优化的生物柴油混合物B30和杂化燃料（HB-1）进行比较，以探讨其在相同实验试验台和操作条件下的功效。在整个装载条件下，绿色柴油混合物显示出较高的BSEC的BTE。 CO，UHC和烟雾不透明度的排放减少，但观察到NOx水平略有增加。与其他测试燃料相比，CP，HRR和ROF的绿色柴油产生峰的较短点火延迟和较高的CENID峰值指数。

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