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Theoretical analysis using thermal efficiency concept in straight micro channel printed circuit heat exchanger 利用热效率概念对直式微通道印刷电路热交换器进行理论分析
Mechanical Engineering Advances Pub Date : 2023-08-21 DOI: 10.59400/mea.v1i1.66
Élcio Nogueira, Humberto Araújo Machado
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引用次数: 0
A theoretical approach to be applied in heat exchangers by using the thermal efficiency concept and the second law of thermodynamic 利用热效率概念和热力学第二定律在热交换器中应用的理论方法
Mechanical Engineering Advances Pub Date : 2023-08-21 DOI: 10.59400/mea.v1i1.92
Élcio Nogueira
{"title":"A theoretical approach to be applied in heat exchangers by using the thermal efficiency concept and the second law of thermodynamic","authors":"Élcio Nogueira","doi":"10.59400/mea.v1i1.92","DOIUrl":"https://doi.org/10.59400/mea.v1i1.92","url":null,"abstract":"A review of the concepts of thermal efficiency and thermal and hydraulic irreversibilities is presented, applying the second law of thermodynamics and thermodynamic Bejan number. An example problem, typical of thermal heat exchange between two fluids, is given, with a dimensionless solution for parallel and counterflow flows. The quantities of interest presented through the example are thermal efficiency, thermal effectiveness, thermal irreversibility, the relationship between outlet and inlet temperatures versus the number of thermal units, and outlet temperature for hot fluid. The theory presented in this review has been applied to numerous problems related to heat exchangers over the last three years, as per references.","PeriodicalId":509420,"journal":{"name":"Mechanical Engineering Advances","volume":"44 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139349711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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