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Parabolic trough collector is a widely used solar collector. The flow field and heat transfer characteristics of the perforated vortex generator with periodically staggered arrangement in the rectangular absorber are simulated for Re=10000~50000. TiO2-Cu / water nanofluid is used as the heat transfer fluid. The effects of blocking ratio (h ⁄ =0.7) and perforation diameter 𝑑 on the heat transfer and flow resistance in the channel are analyzed. The results show that the perforated baffle with h ⁄ =0.7, d=2.5 has the best comprehensive performance of heat transfer in the channel for all selected Re.
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
Yuhan Zhao,Hailin Zhang, andYinxiao Zhan
"Study on heat transfer characteristics of parabolic trough collector enhanced by vortex generator", Proc. SPIE 12979, Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023), 129793I (6 February 2024); https://doi.org/10.1117/12.3015205
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Yuhan Zhao, Hailin Zhang, Yinxiao Zhan, "Study on heat transfer characteristics of parabolic trough collector enhanced by vortex generator," Proc. SPIE 12979, Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023), 129793I (6 February 2024); https://doi.org/10.1117/12.3015205