کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10293869 512437 2016 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Exergy based performance evaluation of solar air heater with arc-shaped wire roughened absorber plate
ترجمه فارسی عنوان
ارزیابی عملکرد بر مبنای اگزرژی از بخاری هوا خورشیدی با صفحه ای جذب شده خرد شده سیم قوس شکل
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
Exergy efficiency analysis is an useful method to evaluate overall performance of solar thermal systems as it takes into consideration of useful energy output and consequent pumping power requirement. In present work, an investigation on exergetic performance evaluation of solar air heater with arc-shaped wire rib roughened absorber plates has been made analytically by employing mathematical model and the results have been compared with a plane absorber plate solar air heater for similar operating conditions. The exergetic efficiency curves as a function of Reynolds number (Re) and temperature rise parameter (ΔT/I) for different roughness parameters have been plotted. The maximum enhancement in exergetic efficiency of roughened solar air heater as compared to smooth absorber plate solar air heater has been found as 56% corresponding to relative roughness height (e/D) = 0.0422. The design plots, exhibiting the optimum combination of roughness parameters, can be used to design arc shaped wire rib roughened solar air heater.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Renewable Energy - Volume 96, Part A, October 2016, Pages 233-243
نویسندگان
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