A Survey Of Solar Dish Cavity Receivers Geometries
Recent scholarly efforts have extensively explored the efficacy of solar dish concentrators through both numerical simulations and empirical investigations. These studies predominantly scrutinize the interplay between solar receiver geometry and the dual objectives of minimizing heat loss while amp...
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| Language: | English |
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Al-Nahrain Journal for Engineering Sciences
2025-07-01
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| Series: | مجلة النهرين للعلوم الهندسية |
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| Online Access: | https://nahje.com/index.php/main/article/view/1159 |
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| author | Sarmad S. A. Talib Ra'ad K. Mohammed Al Dulaimi |
| author_facet | Sarmad S. A. Talib Ra'ad K. Mohammed Al Dulaimi |
| author_sort | Sarmad S. A. Talib |
| collection | DOAJ |
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Recent scholarly efforts have extensively explored the efficacy of solar dish concentrators through both numerical simulations and empirical investigations. These studies predominantly scrutinize the interplay between solar receiver geometry and the dual objectives of minimizing heat loss while amplifying thermal efficiency. This comprehensive review synthesizes the spectrum of research dedicated to examining various cavity receiver geometries alongside their optimization techniques when integrated with parabolic dish collectors. We systematically assess configurations, including flat-sided, cylindrical, conical, and hemispherical designs. Our findings highlight that for an inlet temperature set at 200oC, the conical cavity receiver is distinguished by an exergy efficiency of 30%, a thermal efficiency approximating 70%, and an optical efficiency nearing 87%, maintaining a working fluid temperature range of 650°C to 750°C. The elevated operational temperatures, coupled with the inherent geometry of the cavity, accentuate the significance of mitigating heat losses attributed to convection, conduction, and radiation, as these factors critically impinge on system performance. Additional variables such as cavity inclination angle, diameter-to-depth ratio, tubing contour, and material selection are identified as instrumental in influencing cavity heat losses. Consequently, the pursuit of an optimized cavity receiver geometry emerges as a pivotal area of study. Drawing upon the issues analyzed, we propose strategic recommendations and conclude with insightful remarks poised to guide future research endeavors.
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| format | Article |
| id | doaj-art-0a76024f2de0484db3b557e2c73295d0 |
| institution | DOAJ |
| issn | 2521-9154 2521-9162 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Al-Nahrain Journal for Engineering Sciences |
| record_format | Article |
| series | مجلة النهرين للعلوم الهندسية |
| spelling | doaj-art-0a76024f2de0484db3b557e2c73295d02025-08-20T03:14:35ZengAl-Nahrain Journal for Engineering Sciencesمجلة النهرين للعلوم الهندسية2521-91542521-91622025-07-0128210.29194/NJES.28020240A Survey Of Solar Dish Cavity Receivers Geometries Sarmad S. A. Talib0Ra'ad K. Mohammed Al Dulaimi 1Department of Mechanical Engineering, Al-Nahrain University, Baghdad, Iraq.Department of Mechanical Engineering, Al-Nahrain University, Baghdad, Iraq. Recent scholarly efforts have extensively explored the efficacy of solar dish concentrators through both numerical simulations and empirical investigations. These studies predominantly scrutinize the interplay between solar receiver geometry and the dual objectives of minimizing heat loss while amplifying thermal efficiency. This comprehensive review synthesizes the spectrum of research dedicated to examining various cavity receiver geometries alongside their optimization techniques when integrated with parabolic dish collectors. We systematically assess configurations, including flat-sided, cylindrical, conical, and hemispherical designs. Our findings highlight that for an inlet temperature set at 200oC, the conical cavity receiver is distinguished by an exergy efficiency of 30%, a thermal efficiency approximating 70%, and an optical efficiency nearing 87%, maintaining a working fluid temperature range of 650°C to 750°C. The elevated operational temperatures, coupled with the inherent geometry of the cavity, accentuate the significance of mitigating heat losses attributed to convection, conduction, and radiation, as these factors critically impinge on system performance. Additional variables such as cavity inclination angle, diameter-to-depth ratio, tubing contour, and material selection are identified as instrumental in influencing cavity heat losses. Consequently, the pursuit of an optimized cavity receiver geometry emerges as a pivotal area of study. Drawing upon the issues analyzed, we propose strategic recommendations and conclude with insightful remarks poised to guide future research endeavors. https://nahje.com/index.php/main/article/view/1159Cavity ReceiverSolar Dish GeometryParabolic Dish Collectors |
| spellingShingle | Sarmad S. A. Talib Ra'ad K. Mohammed Al Dulaimi A Survey Of Solar Dish Cavity Receivers Geometries مجلة النهرين للعلوم الهندسية Cavity Receiver Solar Dish Geometry Parabolic Dish Collectors |
| title | A Survey Of Solar Dish Cavity Receivers Geometries |
| title_full | A Survey Of Solar Dish Cavity Receivers Geometries |
| title_fullStr | A Survey Of Solar Dish Cavity Receivers Geometries |
| title_full_unstemmed | A Survey Of Solar Dish Cavity Receivers Geometries |
| title_short | A Survey Of Solar Dish Cavity Receivers Geometries |
| title_sort | survey of solar dish cavity receivers geometries |
| topic | Cavity Receiver Solar Dish Geometry Parabolic Dish Collectors |
| url | https://nahje.com/index.php/main/article/view/1159 |
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