第二代新型生物燃料蜜莲甲酯的生产与应用：CRDI CI发动机的燃烧、性能及排放分析

IF 10.9 1区工程技术 Q1 ENERGY & FUELS

Energy Conversion and Management Pub Date : 2025-04-05 DOI:10.1016/j.enconman.2025.119774

K.V. Pradeep , K.P. Ravikumar , K. Santhosh , C.S. Kavitha , B. Kuldeep , Rangappa S. Keri

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引用次数: 0

摘要

本研究探讨了Michelia Champaca methyl easter （MCME）对单缸共轨直喷（CRDI）柴油发动机特性的影响，该发动机在恒定转速1500 rpm下运行，负载（25%,50%，75%和100%）不同。生物柴油的生产涉及两个步骤的酯交换过程，产生的含含油香甲酯（MCME）的物理化学性质符合ASTM标准。试验燃料由不同浓度的柴油和MCME （B5、B10、B15和B20）混合制成。燃烧分析表明，在75%负荷下，B5混合燃料的峰值缸压为62.72 bar，净放热率（NHRR）为57.98 J/ g，与纯柴油非常接近。平均气体温度（MGT）随着生物柴油浓度的增加而降低，B5在75%负荷下达到1200.46°C。性能评估显示，B5的制动热效率（BTE）降低了3.71%，而B20则降低了12.37%。排放分析表明，在75%负荷下，B20可显著减少碳氢化合物（HC）和一氧化碳（CO），其中HC减少19.23%，CO减少33.34%。然而，氮氧化物（NO）排放量随着生物柴油比例的增加而增加。研究结果表明，低浓度的生物柴油混合物，特别是B5，提供了一种可持续的替代燃料，对发动机性能的影响最小，在典型的操作条件下具有显著的排放效益。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Production and application of Michelia Champaca methyl ester as a novel second-generation biofuel: Combustion, performance, and emission analysis in CRDI CI engines

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Production and application of Michelia Champaca methyl ester as a novel second-generation biofuel: Combustion, performance, and emission analysis in CRDI CI engines

This study explores the effect of Michelia Champaca methyl easter (MCME) on engine characteristics of single cylinder Common Rail Direct Injection (CRDI) diesel engine, operating at a constant speed of 1500 rpm with varying loads (25 %, 50 %, 75 %, and 100 %). Biodiesel production involved a two-step transesterification process, yielding Michelia Champaca Methyl Ester (MCME) with physicochemical properties aligned with ASTM standards. Test fuels were prepared as blends of diesel and MCME at varying concentrations (B5, B10, B15, and B20). Combustion analysis revealed that the B5 blend achieved a peak cylinder pressure of 62.72 bar and a net heat release rate (NHRR) of 57.98 J/deg at 75 % load, closely matching neat diesel. Mean gas temperature (MGT) decreased with increasing biodiesel concentration, with B5 recording 1200.46 °C at 75 % load. Performance evaluation showed a minor 3.71 % reduction in brake thermal efficiency (BTE) for B5, while B20 experienced a 12.37 % reduction.

Emissions analysis indicated significant reductions in hydrocarbons (HC) and carbon monoxide (CO), with B20 reducing HC by 19.23% and CO by 33.34% at 75% load. However, nitrogen oxide (NO) emissions increased with higher biodiesel ratios. The results suggest that low-concentration biodiesel blends, particularly B5, provide a sustainable alternative fuel with minimal impact on engine performance and significant emission benefits under typical operating conditions.

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来源期刊

Energy Conversion and Management 工程技术-力学

CiteScore

19.00

自引率

11.50%

发文量

1304

审稿时长

17 days

期刊介绍： The journal Energy Conversion and Management provides a forum for publishing original contributions and comprehensive technical review articles of interdisciplinary and original research on all important energy topics. The topics considered include energy generation, utilization, conversion, storage, transmission, conservation, management and sustainability. These topics typically involve various types of energy such as mechanical, thermal, nuclear, chemical, electromagnetic, magnetic and electric. These energy types cover all known energy resources, including renewable resources (e.g., solar, bio, hydro, wind, geothermal and ocean energy), fossil fuels and nuclear resources.