Next Article in Journal
System Design and Analysis of a Directly Air-Assisted Turbocharged SI Engine with Camshaft Driven Valves
Previous Article in Journal
The Use of Energy Storage Systems for Supporting the Voltage Needs of Urban and Suburban Railway Contact Lines
Article Menu

Export Article

Open AccessArticle
Energies 2013, 6(4), 1821-1842; doi:10.3390/en6041821

Analytical and Experimental Study of Recycling Baffled Double-Pass Solar Air Heaters with Attached Fins

Energy and Opto-Electronic Materials Research Center, Department of Chemical and Materials Engineering, Tamkang University, Tamsui, New Taipei City 25137, Taiwan
*
Author to whom correspondence should be addressed.
Received: 25 January 2013 / Revised: 14 March 2013 / Accepted: 14 March 2013 / Published: 28 March 2013
View Full-Text   |   Download PDF [376 KB, uploaded 17 March 2015]   |  

Abstract

The study of the heat transfer of solar air heaters with a new design using an absorbing plate with fins and baffles, which facilitate the recycling of flowing air, is reported. The mathematical formulation and analytical analysis for such a recyclic baffled double-pass solar air heater were developed theoretically. The performance of the device was studied experimentally as well. The theoretical predicted and experimental results were compared with another design, i.e., a downward-type single-pass solar air heater without recycle and double-pass operations reported in our previous work. Significant improvement in heat-transfer efficiency is achieved with the baffle and fin design due to the recycling heating and the extended heat transfer area. The effects of mass flow rate and recycle ratio on the heat-transfer efficiency enhancement as well as on the power consumption increment are also discussed.
Keywords: heat-transfer efficiency; double-pass; solar air heater; fins attached; baffles heat-transfer efficiency; double-pass; solar air heater; fins attached; baffles
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Ho, C.D.; Chang, H.; Wang, R.C.; Lin, C.S. Analytical and Experimental Study of Recycling Baffled Double-Pass Solar Air Heaters with Attached Fins. Energies 2013, 6, 1821-1842.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top