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首页> 外文期刊>Transportation Research >Effect on direct injection naturally aspirated diesel engine characteristics fuelled by pine oil, ceiba pentandra methyl ester compared with diesel
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Effect on direct injection naturally aspirated diesel engine characteristics fuelled by pine oil, ceiba pentandra methyl ester compared with diesel

机译：与柴油相比，以松油，木棉五味子甲酯为燃料的直喷自然吸气柴油机性能的影响

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This paper explores the experimental investigation of the performance, emission and combustion characteristics of bio fuels from ceiba pentandra methyl ester (CPME), ceiba pentandra methyl ester-pine oil blends (CPMEP) and pine oil and the results are compared with diesel. In ceiba pentandra seed oil the CPME yield is 92% by using transesterification process with the optimum conditions of 560 rpm, reaction time 58 min, catalyst concentration 13 g and methanol amount 500 ml. The viscosity of CPME is high when compare with diesel. So the low viscosity of pine oil is blended with CPME and it can be directly used in diesel engine without any modification. At different loads the Pine oil, CPME and CPMEP blends were used in direct injection naturally aspirated compression ignition engine. The outcomes exhibited that at full load conditions for CPME and CPMEP blends increased brake specific fuel consumption, and decreased brake thermal efficiency, CO, HC emissions. NOx emissions decreased and smoke emissions are increased on CPME and CPMEP blends, expect B25 blend compared with diesel. The combustion analysis like the heat release rate, peak cylinder pressure, cumulative heat release rate and ignition delay for CPME, CPMEP blends slightly lower and combustion duration higher than diesel and pine oil. At the Same engine operating condition, the engine fuelled with pine oil the values of brake thermal efficiency 4.79%, peak cylinder pressure, heat release rate, cumulative heat release rate and ignition delay are increased. Brake specific fuel consumption, CO, HC, and smoke were 9.46%, 16.66%, 14.89% and 8.33% decreased. However, the NOx emission is 8.29% higher than that of diesel. Experimental fuels up to B50 (50% pine oil and 50% CPME) blends have proved good potential for future energy is needed. (C) 2016 Elsevier Ltd. All rights reserved.
机译：本文探讨了木棉五味子甲酯（CPME），木棉五味子酮-松油共混物和松油的生物燃料的性能，排放和燃烧特性的实验研究，并将结果与​​柴油进行了比较。在木棉五味子籽油中，采用酯交换工艺，最佳条件为560 rpm，反应时间58分钟，催化剂浓度13 g和甲醇量500 ml，CPME收率为92％。与柴油相比，CPME的粘度较高。因此，低粘度的松油与CPME混合使用，无需进行任何修改即可直接用于柴油发动机。在不同的负荷下，将松油，CPME和CPMEP混合物用于直接喷射自然吸气压缩点火发动机。结果表明，在满载条件下，CPME和CPMEP混合物会增加制动器的特定燃料消耗，并降低制动器的热效率，CO，HC排放量。 CPME和CPMEP混合燃料的NOx排放降低，烟气排放增加，预计B25混合燃料与柴油相比。 CPME，CPMEP的燃烧分析（如放热率，峰值气缸压力，累积放热率和点火延迟）比柴油和松油略低，燃烧持续时间更长。在相同发动机工况下，使用松油作为燃料的发动机的制动热效率值为4.79％，峰值气缸压力，放热率，累积放热率和点火延迟值增加。制动器的单位油耗，CO，HC和烟气分别降低了9.46％，16.66％，14.89％和8.33％。但是，NOx排放量比柴油排放量高8.29％。事实证明，最高掺入B50的实验燃料（50％的松油和50％的CPME）掺混物有很大的潜力，需要将来的能源。 （C）2016 Elsevier Ltd.保留所有权利。

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