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首页> 外文期刊>Energy Conversion & Management >Performance, combustion, and emission characteristics of a diesel engine fueled by biodiesel-diesel mixtures with multi-walled carbon nanotubes additives
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Performance, combustion, and emission characteristics of a diesel engine fueled by biodiesel-diesel mixtures with multi-walled carbon nanotubes additives

机译：生物柴油与多壁碳纳米管添加剂的混合物为燃料的柴油发动机的性能，燃烧和排放特性

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摘要

In this work, the effects of adding Multi-Walled Carbon nanotubes (MWCNTs) to Jojoba methyl ester diesel blended fuel (JB20D) on performance, combustion and emissions characteristics of a compression-ignition engine were experimentally investigated. The JB20D with 10, 20, 30, 40 and 50 mg/l of MWCNTs were examined at different engine loads and speeds. Compared to pure diesel, the use of JB20D without MWCNTs caused a slight decrease in the engine performance and an increase in the engine emissions at most examined conditions. The MWCNTs-B20D blended fuel attained a maximum increase of 16% in the brake thermal efficiency and a decrease of 15% in the brake specific fuel consumption at the dose level of 50 mg/l compared to JB20D. The MWCNTs-JB20D blended fuel also brought about an enhancement in combustion characteristics where the peak cylinder pressure, the maximum rate of pressure rise and the peak heat release rate were increased by 7%, 4%, and 4%, respectively, at the same dose level. According to the measured emissions, a significant reduction of engine emissions was achieved at the dose level of 20 mg/l, where NOx, CO, and UHC were reduced by 35%, 50%, and 60%, respectively. According to the obtained results, the recommended concentration of MWCNTs in JB20D was concluded to be 40 mg/l, which could give significant improvements in overall the parameters of engine performance and emissions with a good balance between them. (C) 2016 Elsevier Ltd. All rights reserved.
机译：在这项工作中，实验研究了在霍霍巴甲酯柴油混合燃料（JB20D）中添加多壁碳纳米管（MWCNT）对压燃式发动机的性能，燃烧和排放特性的影响。在不同的发动机负载和转速下，对含10、20、30、40和50 mg / l MWCNT的JB20D进行了检查。与纯柴油相比，在大多数检查条件下，使用不带MWCNT的JB20D会导致发动机性能略有下降，并且发动机排放也会增加。与JB20D相比，在50 mg / l的剂量水平下，MWCNTs-B20D混合燃料的制动热效率最高提高了16％，制动比燃料消耗降低了15％。 MWCNTs-JB20D混合燃料还提高了燃烧特性，在相同的条件下，气缸的峰值压力，最大升压率和峰值放热率分别提高了7％，4％和4％。剂量水平。根据测得的排放量，在20 mg / l的剂量水平下，发动机的排放量显着减少，其中NOx，CO和UHC分别减少了35％，50％和60％。根据获得的结果，得出结论，JB20D中的MWCNT推荐浓度为40 mg / l，这可以显着改善发动机性能和排放的总体参数，并在两者之间取得良好的平衡。 （C）2016 Elsevier Ltd.保留所有权利。

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