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首页> 外文期刊>Arabian Journal for Science and Engineering >Biodiesel Production Process, Optimization and Characterization of Azadirachta indica Biodiesel in a VCR Diesel Engine
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Biodiesel Production Process, Optimization and Characterization of Azadirachta indica Biodiesel in a VCR Diesel Engine

机译：VCR柴油机中生物柴油的生产工艺，印A生物柴油的优化与表征

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Diesel engines are frequently employed in industries, transport and agriculture. The rapid consumption of fossil fuel in the transportation sector compels a search for alternative sources of fuel for internal combustion engines. Lower volatility, unsaturated fats and higher viscosity of crude oil are major problems to use vegetable oil straight away as fuel. The present work aims to conduct the experiments with different proportions of Azadirachta indica oil with diesel. The biodiesel used for the experimentation is prepared by two-step transesterification process considering the optimized parameters such as reaction time and concentration of catalyst. With different trials, the reaction time (90 min) and the concentration of catalyst (1%) were finalized. Experiments were conducted on a variable compression ratio diesel engine to determine various performance parameters and its exhaust emissions for different blend proportions at various loads. The brake thermal efficiency of biodiesel blends is very similar to that of diesel up to partial loads. Higher brake-specific fuel consumption (BSFC) is noticed for biodiesel blends than mineral diesel. At maximum load, BSFC is the same for all percentage of blends along with mineral diesel. The exhaust emissions such as CO and UHC are lower for different blends, while -NOx emission is more. By analyzing all the results with different blends of Azadirachta indica biodiesel, it is evident that it can be used as a promising alternative fuel for a diesel engine without further modifications in engine adjustments. Uncertainty analysis and repeatability tests were performed to check the accuracy of the results.
机译：柴油机经常用于工业，运输和农业。运输部门对化石燃料的快速消费迫使寻找内燃机的替代燃料来源。较低的挥发性，不饱和脂肪和较高的原油粘度是立即将植物油用作燃料的主要问题。目前的工作旨在用不同比例的印A油和柴油进行实验。考虑到优化的参数，例如反应时间和催化剂浓度，通过两步酯基转移法制备用于实验的生物柴油。通过不同的试验，最终确定了反应时间（90分钟）和催化剂浓度（1％）。在可变压缩比柴油发动机上进行了实验，以确定各种性能参数及其在各种负载下不同混合比例下的废气排放。在部分负荷下，生物柴油混合物的制动热效率与柴油非常相似。与生物柴油相比，生物柴油混合物的制动专用油耗（BSFC）更高。在最大负载下，所有掺混物以及矿物柴油的BSFC均相同。对于不同的混合气，CO和UHC等废气排放较低，而-NOx排放较高。通过分析印za（Azadirachta）in生物柴油的不同掺混物得出的所有结果，很明显，它可以用作柴油发动机的有希望的替代燃料，而无需在发动机调整中做进一步修改。进行不确定性分析和重复性测试以检查结果的准确性。

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