To optimize the flow distribution in concentric glass tube solar air collector with various configuration of manifolds

Vishal Dabra () and Avadhesh Yadav
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Vishal Dabra: National Institute of Technology
Avadhesh Yadav: National Institute of Technology

Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, 2022, vol. 24, issue 9, No 17, 10902-10923

Abstract: Abstract As per the objective of the present experimental investigation, influence of various configurations of manifolds for optimum flow distribution in concentric glass tube solar air collector (CGTSAC) has been analyzed for transient conditions. Based on the previous studies it was found that the performance of solar air collector is robustly dependent on the flow distribution and decreases with non-uniform flow distribution. For evaluating four different flow distribution arrangements, the experimental setup of CGTSAC is installed at N.I.T., Kurukshetra (29°58′ (latitude) North and 76°53′ (longitude) East), India, and tested with various configurations of manifolds at different operating conditions. The experimental data have been recorded and found that the maximum exit air temperature is 53.1 and 52.9 °C, and the average values of COPt are 0.2731 and 0.2943 at air mass flow rate of 26.6 and 34.2 kg/h respectively with series flow arrangement. Also, the circular fin is introduced in CGTSAC to enhance the performance of the series flow arrangement by increasing the heat transfer.

Keywords: Concentric glass tube; Flow distribution; Manifold; Solar air collector; Transient performance (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1007/s10668-021-01888-x

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