{"title":"一个不可逆的涡轮机损失了多少功?","authors":"H. Struchtrup , M.A. Rosen","doi":"10.1016/S1164-0235(02)00068-7","DOIUrl":null,"url":null,"abstract":"<div><p>The question of how much work is lost in an adiabatic turbine due to its irreversibilities finds different answers when discussed on basis of the isentropic efficiency, or with the exergy method. In this contribution, we seek to clarify why the two viewpoints lead to quite distinct results for the lost work. In particular, we discuss how the “reversible work” of the exergy method could be realized and how to recover the “recoverable work of friction”. The difference between both approaches is explained.</p></div>","PeriodicalId":100518,"journal":{"name":"Exergy, An International Journal","volume":"2 3","pages":"Pages 152-158"},"PeriodicalIF":0.0000,"publicationDate":"2002-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1164-0235(02)00068-7","citationCount":"16","resultStr":"{\"title\":\"How much work is lost in an irreversible turbine?\",\"authors\":\"H. Struchtrup , M.A. Rosen\",\"doi\":\"10.1016/S1164-0235(02)00068-7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The question of how much work is lost in an adiabatic turbine due to its irreversibilities finds different answers when discussed on basis of the isentropic efficiency, or with the exergy method. In this contribution, we seek to clarify why the two viewpoints lead to quite distinct results for the lost work. In particular, we discuss how the “reversible work” of the exergy method could be realized and how to recover the “recoverable work of friction”. The difference between both approaches is explained.</p></div>\",\"PeriodicalId\":100518,\"journal\":{\"name\":\"Exergy, An International Journal\",\"volume\":\"2 3\",\"pages\":\"Pages 152-158\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2002-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/S1164-0235(02)00068-7\",\"citationCount\":\"16\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Exergy, An International Journal\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1164023502000687\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Exergy, An International Journal","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1164023502000687","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
The question of how much work is lost in an adiabatic turbine due to its irreversibilities finds different answers when discussed on basis of the isentropic efficiency, or with the exergy method. In this contribution, we seek to clarify why the two viewpoints lead to quite distinct results for the lost work. In particular, we discuss how the “reversible work” of the exergy method could be realized and how to recover the “recoverable work of friction”. The difference between both approaches is explained.
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