IMPACT OF CHANGING ABSORBER SHAPE ON AN AIR FLOW BEHAVIOR IN A THERMO-SOLAR CONVERTER

Authors

  • Hamidou Benzenine Department of Mechanical Engineering, Faculty of Science and Technology, University of BELHADJ Bouchaib, P.O.B. 284 RP, Ain Témouchent, 46000, Algeria, 2Laboratory of Energetic and Applied Thermal ETAP, Department of Mechanical Engineering ,Faculty of Technology, P.O.B. 230, University of Tlemcen, 13000, Algeria
  • Said Abboudi ICB, UMR 6303 CNRS, Department COMM UTBM, University of Bourgogne Franche-Comte, 90010 Belfort Cedex, France
  • Saim Rachid Laboratory of Energetic and Applied Thermal ETAP, Department of Mechanical Engineering ,Faculty of Technology, University of Tlemcen, 13000, Algeria

DOI:

https://doi.org/10.29121/ijoest.v5.i6.2021.248

Keywords:

Solar Energy, CFD, Heat Transfer, Thermo-Solar Converter

Abstract

In this paper, a two-dimensional numerical study of heat exchange by forced convection of an incompressible laminar flow in a solar air heater duct (SAH), which is equipped with a shoulder attached to the absorber, was performed. The impact of three locations of this shoulder and their three heights on friction losses, as well as the drag coefficient, the variations of velocity, and temperature at the exit section of the SAH, were analyzed for a volume flow rate in the range [20-80 m3/h.]. The results obtained numerically prove that the insertion of a shoulder on the absorber improves the heat transfer and the dynamics of the flow very significantly. An average temperature difference (inlet-outlet) of the collector of 23.51 °C at 29.94 °C and 50.64 °C at 67.53 °C is acquired respectively for the high and the low flow rates. This paper also showed that the height of the shoulder used can ensure an acceleration of the flow with an axial variation of the order of 1.25 up to 2.5 times (> twice) compared with the simple case.

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Published

2021-12-24

How to Cite

Benzenine, H., Abboudi, S. ., & Saim, R. (2021). IMPACT OF CHANGING ABSORBER SHAPE ON AN AIR FLOW BEHAVIOR IN A THERMO-SOLAR CONVERTER. International Journal of Engineering Science Technologies, 5(6), 74–86. https://doi.org/10.29121/ijoest.v5.i6.2021.248