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Performance of 3.75 kW Diesel Engine Using Different Blends of Jatropha Oil

机译：麻疯树油不同掺混物对3.75 kW柴油机的性能影响

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摘要

Petroleum consumption and its prices are increasing day by day. Moreover, the petroleum reserves in the world are rapidly depleting. Due to these reasons, there is a need for an alternative fuel for the compression ignition (CI) engine. The performance of a 3.75 kW diesel engine was evaluated using different blends of jatropha oil (JO) with diesel (HSD) as a fuel. The fuel samples were prepared by blending jatropha oil with diesel in the ratio of 0:100, 10:90, 20:80, 30:70 and 40:60. The performance parameters of diesel engines such as specific fuel consumption, exhaust gas temperature and brake thermal efficiency and exhaust emission parameters such as carbon monoxide, nitrogen oxides, smoke opacity and noise levels were measured and analysed at different engine loadings to optimise blending ratio of jatropha oil with high speed diesel (HSD) for use as an al- ternate fuel for compression ignition engines. The specific fuel consumption of the engine increased with increase with percentage of jatropha oil blended with diesel. The specific fuel consumption of the engine increased in the range of 1.56-14.4 % and 4.76-20.63 % at 80 and 100 % load, respectively, as compared to HSD with blending of jatropha oil in diesel from 10 to 40 %. The increase in blending of jatropha oil (JO) in HSD from 0 to 40 % increased exhaust gas temperature from 4.0 to 8.8. The highest brake thermal efficiency of the engine was 26.9 % at full load on the engine with HSD and it decreased with increase in percentage of jatropha oil in fuel blends at different loads on engine. The decrease in brake thermal efficiency was low (1.5 %) up to 20 % blending of jatropha oil in HSD and it increased sharply beyond 20 % blending. The blending of jatropha oil with HSD increased the CO emission. The increase in CO emission at 100 % load on the engine was 3.6, 4.2, 79, 79.6 % for 10, 20, 30 and 40 % blending of jatropha oil in HSD. The NOx emission increased with increase in engine load for all the fuels, i.e. HSD and blended fuels. The NOX emissions were reduced by 8.5, 28.2, 35.2 % with 20, 30 and 40 % blending of JO in HSD. The smoke opacity of the engine at lower loads decreased with increase with jatropha oil blending in HSD. There was no significant effect of blending of jatropha oil into diesel on noise levels of the engine at lower loads. The engine noise increased from 91.2 to 97.1 dB (A) with increase in load on the engine. Therefore, it may be concluded that the performance of CI engine with 10 % blending of jatropha oil was quite close to diesel fuel and performed better from exhaust emission norms.
机译：石油消费及其价格每天都在增长。而且，世界上的石油储备正在迅速消耗。由于这些原因，需要用于压燃式（CI）发动机的替代燃料。使用麻风树油（JO）与柴油（HSD）的不同混合物作为燃料，评估了3.75 kW柴油机的性能。通过将麻风树油与柴油以0：100、10：90、20：80、30：70和40:60的比例混合来制备燃料样品。在不同的发动机负荷下，测量并分析了柴油发动机的性能参数，例如比燃料消耗，废气温度和制动器热效率，以及废气排放参数，例如一氧化碳，氮氧化物，烟气不透明度和噪音水平，以优化麻疯树的混合比例含高速柴油（HSD）的机油用作压燃式发动机的替代燃料。随着麻疯树油与柴油的混合比例增加，发动机的单位燃料消耗量也增加。与将麻疯树油在柴油中掺混的HSD相比，在80和100％负载下，发动机的比燃料消耗分别增加了1.56-14.4％和4.76-20.63％。 HSD中麻疯树油（JO）的混合比例从0增加到40％，使废气温度从4.0增加到8.8。在带HSD的发动机上，发动机的最高制动热效率为26.9％，并且在发动机不同负载下，随着混合燃料中麻风树油的百分比增加而降低。在HSD中，最高可达20％的麻风树油混合时，制动热效率的降低很低（1.5％），而超过20％的混合油时，制动热效率却急剧上升。麻疯树油与HSD的混合增加了CO的排放。在HSD中混合10％，20％，30％和40％的麻风树油，发动机100％负载时CO排放量的增加分别为3.6％，4.2％，79％，79.6％。对于所有燃料，即HSD和混合燃料，NOx排放随着发动机负荷的增加而增加。通过在HSD中混合20％，30％和40％的JO，NOx排放量减少了8.5％，28.2％，35.2％。随着HSD中麻风树油的掺混，发动机在较低负荷下的烟气不透明度随麻疯树油的掺混度增加而降低。在较低负载下，麻疯树油与柴油的混合对发动机的噪音水平没有显着影响。随着发动机负荷的增加，发动机噪音从91.2 dB（A）增加到97.1 dB（A）。因此，可以得出结论，混合10％麻风树油的CI发动机的性能与柴油非常接近，并且在废气排放标准方面表现更好。

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  • 作者

    Rajiv Varshney; Anil K. Dubey; C. R. Mehta; B. R. Nayak;

  • 作者单位

    Department of Mechanical Engineering, Maulana Azad National Institute of Technology, Bhopal-462003, INDIA;

    Central Institute of Agricultural Engineering, Nabi- bagh, Bhopal - 462038, INDIA;

    Central Institute of Agricultural Engineering, Nabi- bagh, Bhopal-462038, INDIA;

    Department of Mechanical Engineering, Maulana Azad National Institute of Technology, Bhopal-462003, INDIA;

  • 收录信息 美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
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