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首页> 外文期刊>American Journal of Mechanical and Industrial Engineering >Experimental Studies of Compression Ignition Diesel Engine UsingCNG and Pongamia Biodiesel in a Dual Fuel Mode
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Experimental Studies of Compression Ignition Diesel Engine UsingCNG and Pongamia Biodiesel in a Dual Fuel Mode

机译：CNG和Pongamia生物柴油在双燃料模式下压缩点火柴油机的实验研究

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The rapid depletion of energy resources and continuous increasing cost of petroleum based fuels with their pollution from diesel engine to environment has caused an interest to search for new alternate fuels such as vegetable oils, gaseous fuel. The main objective of this work is to evaluate performance and emission characteristics using CNG (compressed natural gas) and POME (Pongamia oil methyl ester) in a dual fuel mode where pongamia biodiesel used as a pilot fuel to ignite CNG gas. The engine tests were carried out for neat pongamia biodiesel, CNG flow rates of 0.3 kg/hr and 0.6 kg/hr with pongamia biodiesel in a dual fuel mode and obtained results are compared with diesel. In a dual fuel mode CNG flow rate of 0.6 kg/hr gives similar performance compared to diesel. The brake thermal efficiency for 0.6 kg/hr CNG-POME is 26.7% against 28.6% diesel at 75% of the load. In a dual fuel mode CO, CO CORR and hydro carbon emissions are higher at low load and at full load with increase in percentage of CNG CO, CO CORR and HC emissions are completely reduced to a certain extent. In a dual fuel mode COsub2/sub emission, smoke and NOsubx/sub emission also reduced compared to diesel and pongamia biodiesel. From comparison of all tested fuels CNG flow rate of 0.6 kg/hr with biodiesel is optimum having lower emissions with very little reduction in brake thermal efficiency.
机译：能源的迅速消耗和石油基燃料的成本不断增加，以及从柴油机到环境的污染，引起人们对寻找新的替代燃料（例如植物油，气态燃料）的兴趣。这项工作的主要目的是在双燃料模式下使用浮游生物柴油作为引燃CNG气体的先导燃料，使用CNG（压缩天然气）和POME（Pongamia油甲酯）来评估性能和排放特性。对发动机进行了纯净的浮游生物柴油发动机测试，以浮游生物生物柴油在双燃料模式下的CNG流量分别为0.3 kg / hr和0.6 kg / hr，并将获得的结果与柴油进行了比较。在双燃料模式下，0.6千克/小时的CNG流量与柴油相比具有相似的性能。在负载为75％时，CNG-POME 0.6 kg / hr的制动热效率为26.7％，而柴油为28.6％。在双燃料模式下，低负荷和满负荷下的CO CORR和碳氢化合物排放量都随着CNG CO百分比的增加而增加，CO CORR和HC排放物在一定程度上完全降低了。在双燃料模式下，与柴油和浮游生物相比，CO 2 排放，烟雾和NO x 排放也减少。通过所有测试燃料的比较，使用生物柴油的CNG流量为0.6 kg / hr最佳，排放更低，制动热效率几乎没有降低。

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