{"title":"利用数值和实验方法分析使用麻风树生物柴油的柴油发动机的性能和排放情况","authors":"Tatiana Morosukb, Jinming Panc, Cross Mark","doi":"10.21608/jssae.2024.261996.1214","DOIUrl":null,"url":null,"abstract":"Diesel engines are the primary source of power in many types of transport applications, so many countries are currently working to reduce the vehicle exhaust emissions from diesel engines. Jatropha oil methyl ester was mixed in various amounts (20%, 40%, 60%, 80%, and 100%) during an experimental investigation to assess diesel engines' efficiency and emissions at different engine speeds, such as 500 rpm and steps increase with 250 till 1500 rpm. For various blending ratios at each speed, the engine was run at no load, quarter, half, three quarters, and full load. The brake thermal efficiency, the exhaust gas's temperature, and the brake specific fuel consumption (BSFC) are the performance characteristics that are assessed, whilst the exhaust emissions include the specific emissions of O 2 , CO, CO 2 , and NO x . Combustion modeling for the fuel was done using ANSYS Fluent to predict the performance and emissions for diesel and biodiesel fuels. It was found from both the simulated and the experimental results that the use of biodiesel blends causes a 21% decrease in brake thermal efficiency and a 32% increase in brake-specific fuel consumption. The use of biodiesel fuel blends results in a rise in exhaust gas temperature. Increased biodiesel content in fuel blends results in a reduction in specific emission of CO 2 . The results suggest that biodiesel made from oils that are not suitable for human consumption, such as Jatropha, may be a suitable replacement for diesel fuel in diesel engines","PeriodicalId":17094,"journal":{"name":"Journal of Soil Sciences and Agricultural Engineering","volume":"18 6","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Analyzing the Performance and Emissions of Diesel Engines with Jatropha Biodiesel Using Both Numerical and Experimental Methods\",\"authors\":\"Tatiana Morosukb, Jinming Panc, Cross Mark\",\"doi\":\"10.21608/jssae.2024.261996.1214\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Diesel engines are the primary source of power in many types of transport applications, so many countries are currently working to reduce the vehicle exhaust emissions from diesel engines. Jatropha oil methyl ester was mixed in various amounts (20%, 40%, 60%, 80%, and 100%) during an experimental investigation to assess diesel engines' efficiency and emissions at different engine speeds, such as 500 rpm and steps increase with 250 till 1500 rpm. For various blending ratios at each speed, the engine was run at no load, quarter, half, three quarters, and full load. The brake thermal efficiency, the exhaust gas's temperature, and the brake specific fuel consumption (BSFC) are the performance characteristics that are assessed, whilst the exhaust emissions include the specific emissions of O 2 , CO, CO 2 , and NO x . Combustion modeling for the fuel was done using ANSYS Fluent to predict the performance and emissions for diesel and biodiesel fuels. It was found from both the simulated and the experimental results that the use of biodiesel blends causes a 21% decrease in brake thermal efficiency and a 32% increase in brake-specific fuel consumption. The use of biodiesel fuel blends results in a rise in exhaust gas temperature. Increased biodiesel content in fuel blends results in a reduction in specific emission of CO 2 . The results suggest that biodiesel made from oils that are not suitable for human consumption, such as Jatropha, may be a suitable replacement for diesel fuel in diesel engines\",\"PeriodicalId\":17094,\"journal\":{\"name\":\"Journal of Soil Sciences and Agricultural Engineering\",\"volume\":\"18 6\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-02-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Soil Sciences and Agricultural Engineering\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.21608/jssae.2024.261996.1214\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Soil Sciences and Agricultural Engineering","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.21608/jssae.2024.261996.1214","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
柴油发动机是许多运输应用的主要动力来源,因此许多国家目前都在努力减少柴油发动机的汽车尾气排放。在一项实验调查中,麻风树油甲酯以不同的比例(20%、40%、60%、80% 和 100%)混合,以评估柴油发动机在不同发动机转速(如 500 rpm)下的效率和排放情况。对于每种转速下的不同混合比例,发动机分别在空载、四分之一、一半、四分之三和全负荷下运行。评估的性能特征包括制动热效率、废气温度和制动比油耗(BSFC),而废气排放包括 O 2、CO、CO 2 和 NO x 的具体排放量。 使用 ANSYS Fluent 对燃料进行了燃烧建模,以预测柴油和生物柴油燃料的性能和排放。模拟和实验结果表明,使用生物柴油混合燃料会导致制动热效率降低 21%,制动油耗增加 32%。使用生物柴油混合燃料会导致废气温度升高。混合燃料中生物柴油含量的增加导致二氧化碳的具体排放量减少。研究结果表明,用麻风树等不适合人类食用的油类制成的生物柴油,可能是柴油发动机中柴油燃料的合适替代品。
Analyzing the Performance and Emissions of Diesel Engines with Jatropha Biodiesel Using Both Numerical and Experimental Methods
Diesel engines are the primary source of power in many types of transport applications, so many countries are currently working to reduce the vehicle exhaust emissions from diesel engines. Jatropha oil methyl ester was mixed in various amounts (20%, 40%, 60%, 80%, and 100%) during an experimental investigation to assess diesel engines' efficiency and emissions at different engine speeds, such as 500 rpm and steps increase with 250 till 1500 rpm. For various blending ratios at each speed, the engine was run at no load, quarter, half, three quarters, and full load. The brake thermal efficiency, the exhaust gas's temperature, and the brake specific fuel consumption (BSFC) are the performance characteristics that are assessed, whilst the exhaust emissions include the specific emissions of O 2 , CO, CO 2 , and NO x . Combustion modeling for the fuel was done using ANSYS Fluent to predict the performance and emissions for diesel and biodiesel fuels. It was found from both the simulated and the experimental results that the use of biodiesel blends causes a 21% decrease in brake thermal efficiency and a 32% increase in brake-specific fuel consumption. The use of biodiesel fuel blends results in a rise in exhaust gas temperature. Increased biodiesel content in fuel blends results in a reduction in specific emission of CO 2 . The results suggest that biodiesel made from oils that are not suitable for human consumption, such as Jatropha, may be a suitable replacement for diesel fuel in diesel engines