El Kouche Amal, El Ajouri Oumaima, Aroudam Elhassan
{"title":"抛物面槽式集热器温度分布的CFD模拟","authors":"El Kouche Amal, El Ajouri Oumaima, Aroudam Elhassan","doi":"10.3103/S0003701X23600303","DOIUrl":null,"url":null,"abstract":"<p>The aim of this paper is to assess the thermal performance of a parabolic trough collector where the thermophysical characteristics of the heat transfer fluid, the glass envelope, and the absorber pipe are temperature dependent for which we have created our own mathematical correlations. The structure of a parabolic trough collector consists of a reflecting mirror, a heat transfer fluid circulating in an absorber tube that is covered by a glass envelope. The studied model has been subjected to seasonal variations (solstices and equinoxes days) of solar radiation along with the concentrated heat flux reflected from the parabolic trough mirror for conditions at Tetouan city, Morocco. The amount of diffuse and beam solar radiation required has been modelled using the solar load model under Ansys Fluent software environment. The estimation of the heat transfer mechanism of our model has been done by solving Navier Stokes equations, also, the solar discrete ordinate model (DO) has been used to simulate radiation heat exchange on the receiver. The results have shown that the temperature of the heat collector element reaches its maximum values at equinoxes days compared to solstices days, also, it is found that the use of temperature-dependent properties enhances the thermal performance of the model by 1.4%.</p>","PeriodicalId":475,"journal":{"name":"Applied Solar Energy","volume":null,"pages":null},"PeriodicalIF":1.2040,"publicationDate":"2023-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"CFD Simulation of Temperature Distribution in a Parabolic Trough Collector\",\"authors\":\"El Kouche Amal, El Ajouri Oumaima, Aroudam Elhassan\",\"doi\":\"10.3103/S0003701X23600303\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The aim of this paper is to assess the thermal performance of a parabolic trough collector where the thermophysical characteristics of the heat transfer fluid, the glass envelope, and the absorber pipe are temperature dependent for which we have created our own mathematical correlations. The structure of a parabolic trough collector consists of a reflecting mirror, a heat transfer fluid circulating in an absorber tube that is covered by a glass envelope. The studied model has been subjected to seasonal variations (solstices and equinoxes days) of solar radiation along with the concentrated heat flux reflected from the parabolic trough mirror for conditions at Tetouan city, Morocco. The amount of diffuse and beam solar radiation required has been modelled using the solar load model under Ansys Fluent software environment. The estimation of the heat transfer mechanism of our model has been done by solving Navier Stokes equations, also, the solar discrete ordinate model (DO) has been used to simulate radiation heat exchange on the receiver. The results have shown that the temperature of the heat collector element reaches its maximum values at equinoxes days compared to solstices days, also, it is found that the use of temperature-dependent properties enhances the thermal performance of the model by 1.4%.</p>\",\"PeriodicalId\":475,\"journal\":{\"name\":\"Applied Solar Energy\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.2040,\"publicationDate\":\"2023-10-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Applied Solar Energy\",\"FirstCategoryId\":\"1\",\"ListUrlMain\":\"https://link.springer.com/article/10.3103/S0003701X23600303\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"Energy\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Solar Energy","FirstCategoryId":"1","ListUrlMain":"https://link.springer.com/article/10.3103/S0003701X23600303","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Energy","Score":null,"Total":0}
CFD Simulation of Temperature Distribution in a Parabolic Trough Collector
The aim of this paper is to assess the thermal performance of a parabolic trough collector where the thermophysical characteristics of the heat transfer fluid, the glass envelope, and the absorber pipe are temperature dependent for which we have created our own mathematical correlations. The structure of a parabolic trough collector consists of a reflecting mirror, a heat transfer fluid circulating in an absorber tube that is covered by a glass envelope. The studied model has been subjected to seasonal variations (solstices and equinoxes days) of solar radiation along with the concentrated heat flux reflected from the parabolic trough mirror for conditions at Tetouan city, Morocco. The amount of diffuse and beam solar radiation required has been modelled using the solar load model under Ansys Fluent software environment. The estimation of the heat transfer mechanism of our model has been done by solving Navier Stokes equations, also, the solar discrete ordinate model (DO) has been used to simulate radiation heat exchange on the receiver. The results have shown that the temperature of the heat collector element reaches its maximum values at equinoxes days compared to solstices days, also, it is found that the use of temperature-dependent properties enhances the thermal performance of the model by 1.4%.
期刊介绍:
Applied Solar Energy is an international peer reviewed journal covers various topics of research and development studies on solar energy conversion and use: photovoltaics, thermophotovoltaics, water heaters, passive solar heating systems, drying of agricultural production, water desalination, solar radiation condensers, operation of Big Solar Oven, combined use of solar energy and traditional energy sources, new semiconductors for solar cells and thermophotovoltaic system photocells, engines for autonomous solar stations.