Top Glass Cover Effect on the Performance of a Parabolic Trough Solar Receiver
DOI:
https://doi.org/10.54172/nkr1d641Keywords:
Parabolic Solar collector, Solar energy, Thermal efficiency, Top-glass cover, Energy balanceAbstract
Solar energy is a promising solution to the rapidly increasing energy consumption. The parabolic trough collector (PTC) can be a practical solution, particularly in providing domestic water heating in developing countries. The impact of the glass envelope on PTC performance has been investigated extensively. However, only a few studies have investigated the effects of a flat-top glass cover. This study examines the impact of a top glass cover on the PTC performance by manufacturing two identical PTCs, one with a top glass cover and the other without a top cover. The top-covered collector showed a higher maximum absorber surface temperature (11%) and higher maximum water temperature (4%) than the temperatures of uncovered PTC. The results also showed that the theoretical efficiency was %56.9 and the experimental efficiency was %50.4. Installing the glass cover has led to a gain in theoretical thermal efficiency by 5% and in experimental thermal efficiency by 4%. The study recommends that future studies improve the reflecting mirrors and increase the size of the prototype.
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Copyright (c) 2024 Mohamed Eltarkawe, Ali A.A. Adam, Hasan A. H. Husayn (Author)
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