Numerical Study of Heat Transfer Enhancement for a Flat Plate Solar Collector by Adding Metal Foam Blocks

  • Mohammed Abdulraouf Nima, Ass. Prof. Dr. College of Engineering-University of Baghdad
  • Ali Mohammed Ali, MSc student College of Engineering-University of Baghdad
Keywords: Solar water collector, metal foam, finite volume method, Iraq climate.

Abstract

Numerical study has been conducted to investigate the thermal performance enhancement of flat plate solar water collector by integrating the solar collector with metal foam blocks.The flow is assumed to be steady, incompressible and two dimensional in an inclined channel. The channel is provided with eight foam blocks manufactured form copper. The Brinkman-Forchheimer extended Darcy model is utilized to simulate the flow in the porous medium and the Navier-Stokes equation in the fluid region. The energy equation is used with local thermal equilibrium (LTE) assumption to simulate the thermofield inside the porous medium. The current investigation covers a range of solar radiation intensity at 09:00 AM, 12:00 PM, and 04:00 PM on the 8th of July 2016 under Iraq climate conditions, and a range of Reynolds number of (207<Re<625). The results show that the insertion of metal foam blocks caused a reduction in the absorber plate temperature and the possible enhancement in the heat transfer coefficient is more than 80% and as a result, the collector exhaust temperature will increase.

 

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Published
2017-11-26
How to Cite
Nima, M. and Ali, A. (2017) “Numerical Study of Heat Transfer Enhancement for a Flat Plate Solar Collector by Adding Metal Foam Blocks”, Journal of Engineering, 23(12), pp. 13-32. Available at: http://joe.uobaghdad.edu.iq/index.php/main/article/view/401 (Accessed: 18February2020).