{"title":"Simulating the influence of EGR on NOx emission of the diesel engine with CHEMKIN","authors":"Liwei Zhao","doi":"10.1117/12.2646085","DOIUrl":null,"url":null,"abstract":"Based on the Closed Internal Combustion HCCI Engine Simulator model in CHEMKIN, this paper simulates the NOx emission of a four-stroke single-cylinder non-supercharged 135 diesel engine operating at different exhaust gas circulation rates and temperatures. Simulation experiments and analysis find that when the exhaust gas is cooled, the maximum temperature of in-cylinder combustion and the emission of NOx decrease with the increase of the exhaust gas circulation rate; when the recirculated exhaust gas is not cooled, the maximum temperature of the in-cylinder combustion barely changes with different exhaust gas circulation rates, and the NOx emission will not be greatly decreased.","PeriodicalId":390588,"journal":{"name":"Conference on Materials Chemistry and Environmental Engineering","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2022-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Conference on Materials Chemistry and Environmental Engineering","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1117/12.2646085","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Based on the Closed Internal Combustion HCCI Engine Simulator model in CHEMKIN, this paper simulates the NOx emission of a four-stroke single-cylinder non-supercharged 135 diesel engine operating at different exhaust gas circulation rates and temperatures. Simulation experiments and analysis find that when the exhaust gas is cooled, the maximum temperature of in-cylinder combustion and the emission of NOx decrease with the increase of the exhaust gas circulation rate; when the recirculated exhaust gas is not cooled, the maximum temperature of the in-cylinder combustion barely changes with different exhaust gas circulation rates, and the NOx emission will not be greatly decreased.
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