کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5451294 | 1513072 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Early development of unsteady convective laminar flow in an inclined channel using CFD: Application to PV panels
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Early development of unsteady convective laminar flow in an inclined channel using CFD: Application to PV panels Early development of unsteady convective laminar flow in an inclined channel using CFD: Application to PV panels](/preview/png/5451294.png)
چکیده انگلیسی
The aim of this study is to investigate the heat transfer and flow dynamics in inclined PV panels. For this purpose, a numerical study of the early stage regime of natural convection flow in an inclined plane channel asymmetrically heated at a 510 W/m2 uniform heat flux, corresponding to the average annual solar heat flux in France, has been performed. Numerical simulations are presented for two-dimensional, laminar and unsteady flow using the finite volume approach. The results showed appearance of large-scale flow instabilities which will develop and propagate until the development of a pocket-like vortex (reversed flow). Moreover, for large channel inclination angles (α = +20° and α = â20° with regard to the vertical position) the heat transfer rate is shown to be low. The maximal increase and decrease in mass flow rate are 7% for α = â20° and 21% for α = +20° respectively, compared to that of vertical channel.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solar Energy - Volume 146, April 2017, Pages 221-229
Journal: Solar Energy - Volume 146, April 2017, Pages 221-229
نویسندگان
Cédric Hemmer, Aissa Abidi Saad, Catalin Viorel Popa, Guillaume Polidori,