Influence of Renewable Fuels and Nanoparticles Additives on Engine Performance and Soot Nanoparticles Characteristics

M. Fayad, Azher M. Abed, S. Omran, Alaa Abdulhady Jaber, Amerah A Radhi, H. Dhahad, M. Chaichan, T. Yusaf
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Abstract

The fuel combustion in diesel engines can be improved by adding nanomaterials to the fuel which result in an reduction in pollutant emissions and enhance the quality of fuel combustion. The engine performance and soot nanoparticles characteristics were evaluated in this study with adding nanoparticles of copper oxide (CuO2) to the rapeseed methyl ester (RME) and diesel under variable engine speeds. The addition of CuO2 to the RME significantly improve brake thermal efficiency (BTE) and decline the brake specific fuel consumption (BSFC) by 23.6% and 7.6%, respectively, compared to the neat RME and diesel fuel. The inclusion CuO2 nanoparticles into the RME and diesel led to decrease the concentration and number of particulate matter (PM)by 33% and 17% in comparison with neat RME and diesel without nano additives, respectively. Moreover, PM is significantly decreased by 31.5% during the RME combustion in comparison with neat RME and diesel under various engine speeds. It was also obtained that the number of emitted particles (npo) reduced by 23.5% with adding nanoparticles to the RME in comparison with diesel, while the diameter of soot nanoparticles (dpo) increased by 8.6% in comparison with diesel. Furthermore, the addition CuO2 to the RME decreased the size and number of particles more than to the diesel fuel.
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可再生燃料和纳米颗粒添加剂对发动机性能和烟尘纳米颗粒特性的影响
在柴油发动机中加入纳米材料可以改善燃料燃烧,从而减少污染物排放,提高燃料燃烧质量。本研究通过在油菜籽甲酯(RME)和柴油中添加氧化铜纳米颗粒(CuO2),在变转速下对发动机性能和烟尘纳米颗粒特性进行了评价。与纯RME和柴油相比,在RME中添加CuO2可显著提高制动热效率(BTE),降低制动比油耗(BSFC),分别降低23.6%和7.6%。与未添加纳米添加剂的纯RME和柴油相比,添加CuO2纳米颗粒可使RME和柴油的颗粒物(PM)浓度和数量分别降低33%和17%。在不同的发动机转速下,与纯RME和柴油相比,RME燃烧时PM显著降低了31.5%。与柴油相比,在RME中加入纳米颗粒后,排放颗粒物(npo)数量减少了23.5%,而烟尘纳米颗粒(dpo)直径则增加了8.6%。此外,在RME中添加CuO2比在柴油中添加CuO2更能减少颗粒的大小和数量。
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来源期刊
CiteScore
4.50
自引率
16.00%
发文量
83
审稿时长
8 weeks
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