Das Amar Kumar, Behera Shibaprasad, Mohanty Swopneswar, Behera Nilakantha, Mohanty Kirtiswarup
Department of Mechanical Engineering, Gandhi Institute For Technology (GIFT) Autonomous, Bhubaneswar, Odisha, Pin-752054, India.
Environ Sci Pollut Res Int. 2023 Nov 27. doi: 10.1007/s11356-023-31091-6.
The current energy challenges in agriculture, industry, and transportation are aggravated by insufficient liquid petroleum fuels, strained by rapid depletion, and higher demand in the international market. Existing environmental pollution due to higher fossil fuel consumption, certainly draws the attention of many researchers to identify a better alternative fuel concerning engine efficiency and exhaust emissions. Waste plastic oil (WPO) derived by thermo-catalytic pyrolysis is found to be a promising alternative fuel due to it's similar fuel properties to diesel. WPO contains long-chain hydrocarbons and high-molecular-weight aromatics which can be eliminated by fractional distillation, resulting in the production of distilled waste plastic oil (DPO). Ethanol is added in addition to DPO in the diesel fuel mixture in order to improve combustion for better performance and reduce emissions. The current study focused on the preparation of homogenous fuel mixtures (DPO/ethanol/diesel) to evaluate it's engine efficiency and exhaust emissions as compared to pure diesel and confirmed that it has the potential to be an alternate fuel for the CI engine. Test engine trials were performed to determine the potential engine characteristics, for instance, thermal efficiency, specific fuel consumptions, and exhaust temperature, by using various fuel mixtures (80D10DPO10E, 70D15DPO15E, 60D20DPO20E, 50D25DPO25E) under different loading conditions of the test engine. Major pollutants including unburned hydrocarbon, carbon monoxide, and nitrogen oxides were measured by a standard emission analyzer. The BTE was increased by 3.7%, and the BSFC was 16.67% less for the 60D20DPO20E mixture so as to diesel at full load. CO emission was found to comparatively increase at higher concentrations and decrease at higher loads. Compared to diesel, the NOx and HC emission were shown to be lowered at low loads and increased at higher loads. The study concluded that the fuel mixture of 60D20DPO20E showed the best engine performance and reduced emissions as compared to diesel.
农业、工业和交通运输领域当前面临的能源挑战，因液体石油燃料不足、快速枯竭以及国际市场需求增加而加剧。化石燃料消耗增加导致的现有环境污染，无疑吸引了众多研究人员关注，以寻找在发动机效率和尾气排放方面更好的替代燃料。通过热催化热解获得的废塑料油（WPO），因其与柴油相似的燃料特性，被视为一种有前景的替代燃料。WPO含有长链烃和高分子量芳烃，可通过分馏去除，从而生产出蒸馏废塑料油（DPO）。在柴油燃料混合物中除了加入DPO还添加乙醇，以改善燃烧性能、提升性能并减少排放。当前研究聚焦于制备均质燃料混合物（DPO/乙醇/柴油），以评估其与纯柴油相比的发动机效率和尾气排放，并证实其有潜力成为压燃式发动机的替代燃料。通过在测试发动机的不同负载条件下使用各种燃料混合物（80D10DPO10E、70D15DPO15E、60D20DPO20E、50D25DPO25E）进行测试发动机试验，以确定潜在的发动机特性，如热效率、特定燃料消耗和排气温度。主要污染物，包括未燃烧的碳氢化合物、一氧化碳和氮氧化物，通过标准排放分析仪进行测量。在满负荷时，60D20DPO20E混合物的制动热效率提高了3.7%，制动比油耗比柴油低16.67%。发现一氧化碳排放在较高浓度下相对增加，在较高负载下减少。与柴油相比，氮氧化物和碳氢化合物排放在低负载时降低，在高负载时增加。研究得出结论，与柴油相比，60D20DPO20E燃料混合物表现出最佳的发动机性能并减少了排放。
