{"title":"压力和不混合对模型燃气轮机燃烧室NOx排放的影响分析","authors":"Yuangang Wang, Soon-Been Park, Chae-Hoon Sohn","doi":"10.15231/jksc.2023.28.3.036","DOIUrl":null,"url":null,"abstract":"Pressure effects on NOx emission in a gas turbine combustor are numerically investigated in the present study. Initially, fully premixed flame condition with air and fuel injection at the combustor inlet is examined. Increasing pressure leads to a 0.08% rise in flame temperature and a significant 30% increase in NOx emissions. Technically premixed flame condition is then conducted. NOx emissions rise from 1.3 to 3 bar but decline beyond 3 bar due to combined pressure and mixing effects. Applying the NOx emission calibration formula, which accounts for pressure-induced changes while eliminating mixing influence, reveals a direct link between increased pressure and higher NOx emissions.","PeriodicalId":42247,"journal":{"name":"Journal of the Korean Society of Combustion","volume":null,"pages":null},"PeriodicalIF":0.7000,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Analysis of the Effects of Pressure and Unmixedness on NOx Emissions in a Model Gas Turbine Combustor\",\"authors\":\"Yuangang Wang, Soon-Been Park, Chae-Hoon Sohn\",\"doi\":\"10.15231/jksc.2023.28.3.036\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Pressure effects on NOx emission in a gas turbine combustor are numerically investigated in the present study. Initially, fully premixed flame condition with air and fuel injection at the combustor inlet is examined. Increasing pressure leads to a 0.08% rise in flame temperature and a significant 30% increase in NOx emissions. Technically premixed flame condition is then conducted. NOx emissions rise from 1.3 to 3 bar but decline beyond 3 bar due to combined pressure and mixing effects. Applying the NOx emission calibration formula, which accounts for pressure-induced changes while eliminating mixing influence, reveals a direct link between increased pressure and higher NOx emissions.\",\"PeriodicalId\":42247,\"journal\":{\"name\":\"Journal of the Korean Society of Combustion\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.7000,\"publicationDate\":\"2023-09-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of the Korean Society of Combustion\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.15231/jksc.2023.28.3.036\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"ENGINEERING, MECHANICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the Korean Society of Combustion","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.15231/jksc.2023.28.3.036","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
Analysis of the Effects of Pressure and Unmixedness on NOx Emissions in a Model Gas Turbine Combustor
Pressure effects on NOx emission in a gas turbine combustor are numerically investigated in the present study. Initially, fully premixed flame condition with air and fuel injection at the combustor inlet is examined. Increasing pressure leads to a 0.08% rise in flame temperature and a significant 30% increase in NOx emissions. Technically premixed flame condition is then conducted. NOx emissions rise from 1.3 to 3 bar but decline beyond 3 bar due to combined pressure and mixing effects. Applying the NOx emission calibration formula, which accounts for pressure-induced changes while eliminating mixing influence, reveals a direct link between increased pressure and higher NOx emissions.
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