Volume 1, Issue 1 (energy managment 2011)                   JEM 2011, 1(1): 57-65 | Back to browse issues page

XML Persian Abstract Print

Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Khorasanizadeh H, Sabzpooshani M, Abdollahi Taheri R. Numerical analysis of wind effect on performance of unglazed transpired solar collector. JEM. 2011; 1 (1) :57-65
URL: http://energy.kashanu.ac.ir/article-1-27-en.html
Abstract:   (10845 Views)
Considering problems associated with nonrenewable fuels such as pollution and high cost, efforts are being made to develop use of renewable energy sources like solar energy. Solar collectors could often be employed as important devices for thermal applications. Unglazed Transpired Collector (UTC) is a modern preheating and heating equipment used for ventilating air or drying crops. Heat transfer in the UTC is accomplished by passing air through holes of the unglazed collector. In this study, the effect of wind stream parallel to the collector surface on its performance is investigated using numerical techniques. The study is based on total energy balance where new equations are incorporated in order to consider the wind effect. The results show that increasing the wind velocity may decrease or increase the collector efficiency depending on the incoming air approach velocity. This is due to opposite effects of wind and radiation heat losses with convection heat transfer from collector surface to inlet air. Moreover, the heat exchange effectiveness increases with increasing the wind velocity for any approach velocity.
Full-Text [PDF 310 kb]   (1793 Downloads)    
Type of Study: Research | Subject: Special
Received: 2012/07/24 | Published: 2011/10/15

Add your comments about this article : Your username or Email:

Rights and permissions
  This work is licensed under a This work is licensed under a Creative Common International License..

© 2022 CC BY-NC 4.0 | Energy Engineering & Management

Designed & Developed by : Yektaweb