Abstract Solar energy is a widely available and sustainable energy that can be effectively utilized through solar air collectors (SACs) for various heating and drying purposes. Although SAC are economical and simple in design, their performance is often limited by low heat transfer efficiency. Enhancing absorber configurations can significantly improve thermal effectiveness and broaden their practical applications. This article examines the performance of a single‐pass solar air collector equipped with six distinct absorber plate designs: Flat Plate (FP), V‐shaped plate (VSP), Chevron plate (CP), Circular baffles (BP), Circular baffles with holes (BPH), and Alternate wing‐structured plate (AWSP). Experiments were performed for different air mass flow rates (0.015 and 0.035 kg/s) on the SAC. The different performance parameters were evaluated, that is, absorber plate temperature, outlet air temperature, Friction Factor (FF), Nusselt number (Nu), and thermal efficiency. The test result exhibited that AWSP achieved higher performance compared to all test plates under different conditions. The AWSP configuration achieved a maximum outlet temperature of 65.5°C, a Nusselt number of 119 at Re = 5500, and a peak thermal efficiency of 64%.
Prasad et al. (Thu,) studied this question.
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