Collector Efficiency by Single Pass of Solar Air Heaters with and without Using Fins

Authors

  • Foued Chabane University of Biskra
  • Noureddine Moummi University of Biskra
  • Said Benramache University of Biskra
  • Djamel Bensahal University of Biskra
  • Okba Belahssen University of Biskra

DOI:

https://doi.org/10.4186/ej.2013.17.3.43

Keywords:

Design of experiments, efficiency, solar energy, fins, temperature, heat transfer, ambient temperature.

Abstract

This paper presents the study of heat transfer in a solar air heater by using new design of solar collector. The collector efficiency in a single pass of solar air heater without, and with using fins attached under the absorbing plate has been investigated experimentally. Due to the adding the fins inferior an absorber plate, the desirable effect of increasing the heat transfer coefficient compensates for the undesirable effect of decreasing the driving force (temperature difference) of heat transfer, while the attached fins provide an enlarged heat transfer area. In this study, the absorbing plate of solar collector is attached with fins for further improved performance. The improvements of collector efficiencies in the single pass solar air heaters with, and without fins attached; increase with increasing the mass flow rate, especially for operating at lower air flow rate. Experiments were performed for two air mass flow rates of 0.012 and 0.016 kg/s. Moreover; the maximum efficiency obtained for the 0.012 and 0.016 kg/s with, and without fins were 40.02, 51.50% and 34.92, 43.94% respectively. A comparison of the results of the mass flow rates by solar collector with, and without fins shows a substantial enhancement in the thermal efficiency.

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Author Biographies

Foued Chabane

Mechanical Laboratory, Mechanics Department, Faculty of Sciences and Technology, University of Biskra, Algeria

Noureddine Moummi

Mechanical Laboratory, Mechanics Department, Faculty of Sciences and Technology, University of Biskra, Algeria

Said Benramache

Mechanical Laboratory, Mechanics Department, Faculty of Sciences and Technology, University of Biskra, Algeria

Djamel Bensahal

Mechanics Department, Faculty of Sciences and Technology, University of Biskra, Algeria

Okba Belahssen

Mechanical Laboratory, Mechanics Department, Faculty of Sciences and Technology, University of Biskra, Algeria

Published

Vol 17 No 3, Apr 7, 2013

How to Cite

[1]
F. Chabane, N. Moummi, S. Benramache, D. Bensahal, and O. Belahssen, “Collector Efficiency by Single Pass of Solar Air Heaters with and without Using Fins”, Eng. J., vol. 17, no. 3, pp. 43-55, Apr. 2013.