Evaluation of engine performance and emission with methyl ester of Karanja oil

Perspectives in science Pub Date : 2016-09-01 DOI:10.1016/j.pisc.2016.04.040

Shikha Gangil, Ranjana Singh, Priyanka Bhavate, Divya Bhagat, Bharat Modhera

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引用次数: 15

Abstract

Biodiesel has been considered as potential alternative to petroleum diesel with the renewable origin for the existing compression ignition engine. The main objective of the present work is evaluating performance and emission characteristics of diesel engine for various blends (B20, B40, B60, B80 and B100) of Karanja biodiesel and commercial diesel. The experimental investigation was carried out in IC (internal combustion) at variable loads and compared with conventional diesel fuel with respect to engine performance parameters i.e. brake specific fuel consumption (BSFC), brake specific power consumption (BSEC), brake thermal efficiency (η-B.Th), for varying load conditions. The results obtained indicated the better fuel properties and engine performance at B40. For all cases, BSFC reduced with increase in load. It can be observed that the BSEC for various blends is lower as compared with that of diesel fuel. The availability of oxygen in the Karanja oil methyl ester-diesel fuel blend may be the reason for the lower BSEC. Brake thermal efficiency is increased due reduced heat loss with increased in load. It was found that the emission level of CO and HC level decreased with increased in blend proportion in diesel fuel. NO_x emission increased with increase in blend proportion in diesel fuel.

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Karanja油品甲酯对发动机性能及排放的评价

生物柴油已被认为是现有压缩点火发动机的潜在可再生燃料，可替代石油柴油。目前工作的主要目的是评估Karanja生物柴油和商用柴油的各种混合物(B20, B40, B60, B80和B100)的柴油发动机的性能和排放特性。在变负荷内燃机下进行了试验研究，并与传统柴油在变负荷条件下的发动机性能参数，即制动比油耗(BSFC)、制动比功耗(BSEC)、制动热效率(η-B.Th)进行了比较。结果表明，在B40条件下，燃料性能和发动机性能较好。在所有情况下，BSFC都随着负荷的增加而减小。可以观察到，与柴油相比，各种混合物的BSEC都较低。Karanja油甲酯-柴油混合燃料中氧气的可用性可能是BSEC较低的原因。制动热效率增加，由于减少热损失与增加的负荷。结果表明，柴油中CO和HC的排放水平随混合比例的增加而降低。柴油中NOx排放量随混合比例的增加而增加。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Perspectives in science

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