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Effect of antioxidant on the performance and emission characteristics of a diesel engine fueled with palm biodiesel blends

机译：抗氧化剂对以棕榈生物柴油混合物为燃料的柴油发动机的性能和排放特性的影响

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摘要

Biodiesel is a clean-burning alternative fuel produced from renewable resources. However, it is susceptible to oxidative degradation due to autoxidation in the presence of oxygen, which hinders its widespread use. Antioxidant addition is a prospective solution to this problem. It is expected that antioxidants may affect the clean-burning characteristic of biodiesel. Palm biodiesel (PME) is the most used biodiesel in Malaysia. This paper presents an experimental investigation of the effect of antioxidant addition to palm biodiesel on engine performance and emission characteristics. PME was produced by transesterification using potassium hydroxide (KOH) as catalyst. Two monophenolic antioxidants, 2, 6-di-tert-butyl-4-methylphenol (BHA) and 2(3)-tert-butyl-4-methoxy phenol (BHT), were added at 1000 ppm concentration to 20% PME (B20) to study their effect. The addition of antioxidants increased oxidation stability without causing any significant negative effect on physicochemical properties. BHA showed greater capability to increase the stability of B20. A 42-kW, 1.8-L, four-cylinder diesel engine was used to carry out tests under conditions of constant load and varying speed. The results show that B20 and antioxidant-treated B20 produced 0.68-1.02% lower brake power (BP) and 4.03-4.71% higher brake specific fuel consumption (BSFC) compared to diesel. Both of the antioxidants reduced NOx by a mean of 9.8-12.6% compared to B20. However, compared to B20, mean increases in carbon monoxide (CO) and hydrocarbon (HC) emissions of 8.6-12.3% and 9.1-12.0%, respectively, were observed. The emission levels of the three pollutants were lower than those of diesel. Thus, B20 blends with added antioxidant can be used in diesel engines without any modifications.
机译：生物柴油是由可再生资源产生的清洁燃烧的替代燃料。然而，由于在氧气存在下的自氧化作用，其易于氧化降解，这阻碍了其广泛使用。添加抗氧化剂是解决该问题的一种前瞻性解决方案。预期抗氧化剂可能会影响生物柴油的清洁燃烧特性。棕榈生物柴油（PME）是马来西亚使用最多的生物柴油。本文提出了对棕榈生物柴油中添加抗氧化剂对发动机性能和排放特性的影响的实验研究。通过使用氢氧化钾（KOH）作为催化剂的酯交换反应生产PME。以1000 ppm的浓度向20％的PME（B20）中添加了两种单酚类抗氧化剂，即2，6，6-二叔丁基-4-甲基苯酚（BHA）和2（3）-叔丁基-4-甲氧基苯酚（BHT）。 ）研究其效果。抗氧化剂的添加增加了氧化稳定性，而对理化性质没有任何明显的负面影响。 BHA具有提高B20稳定性的更大能力。使用42千瓦，1.8升四缸柴油发动机在恒定负载和可变速度的条件下进行测试。结果表明，与柴油相比，B20和经过抗氧化剂处理的B20的制动功率（BP）降低0.68-1.02％，制动比燃料消耗（BSFC）升高4.03-4.71％。与B20相比，两种抗氧化剂均能使NOx降低9.8-12.6％。但是，与B20相比，一氧化碳（CO）和碳氢化合物（HC）的排放量分别增加了8.6-12.3％和9.1-12.0％。三种污染物的排放水平均低于柴油。因此，添加了抗氧化剂的B20共混物无需任何修改即可用于柴油发动机。

著录项

  • 来源
    《Energy Conversion & Management》 |2014年第3期|265-272|共8页
  • 作者

    I.M.Rizwanul Fattah; H.H.Masjuki; M.A.Kalam; M.Mofijur; M.J.Abedin;

  • 作者单位

    Centre for Energy Sciences, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia;

    Centre for Energy Sciences, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia;

    Centre for Energy Sciences, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia;

    Centre for Energy Sciences, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia;

    Centre for Energy Sciences, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Antioxidant; Palm biodiesel; Performance; Emission; NOx reduction; Diesel-biodiesel blend;

    机译：抗氧化剂棕榈生物柴油;性能;发射;减少氮氧化物柴油-生物柴油混合物;

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