Optimization of louvered-fin heat exchanger with variable louver angles
作者： Jiin-Yuh Jang , Chun-Chung Chen
DOI: 10.1016/J.APPLTHERMALENG.2015.08.009
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摘要: Abstract The optimization of the variable louver angle ( Δ θ ) and initial i for a louvered-fin heat exchanger was determined numerically using conjugate gradient method. area reduction ratio relative to plain surface objective function be maximized. A search optimal ), in ranges of +0° Δθ , at ReH = 133–1199 (Uin = 1.0–9.0 m/s). In order validate reliability numerical simulation procedure, comparison experimental results made with scaled-up testing. This article shows temperature louvered fin as from infrared thermovision simulation, respectively. images that both methods give similar distributions across entire fin. addition, it comparisons j f between results. show good agreements, maximum discrepancy 12%.
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