Thermal Efficiency of Double Pass Solar Collector with Longitudinal Fins Absorbers | Science Publications

American Journal of Applied Sciences

Ahmad Fudholi¹  Kamaruzzaman Sopian¹  Mohd H. Ruslan¹  Mohd. Y. Othman¹  Muhammad Yahya¹ 

关键词: Double pass solar collector;    fins absorbers;    thermal efficiency;    solar collector;   

DOI  :  10.3844/ajassp.2011.254.260

学科分类：自然科学（综合）

来源: Science Publications

【 摘 要 】

Problem statement: One of the most important components of a solar energy system is thesolar collector. The performances of double-pass solar collector with longitudinal fins absorbers areanalyzed. Approach: The study involves a theoretical study to investigate the effect of mass flow rate,number and height of fins on efficiency, which involves steady-state energy balance equations on thelongitudinal fins absorber of solar collectors. The theoretical solution procedure of the energyequations uses a matrix inversion method and making some algebraic rearrangements. Results: Thecollector efficiency increases as the number and height of fins increases. For a mass flow rate 0.02-0.1kg/s, the double-pass solar collectors are efficiency about 36-73% in upper fins (type I), 37-75% inlower fins (type II) and 46-74% in upper and lower fins (type III). Conclusion: The efficiency of thecollector is strongly dependent on the flow rate, efficiency increase is about 35%.

【 授权许可】

Unknown