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Simulation and optimization of a LiBr solar absorption cooling system with evacuated tube collectors

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  • Assilzadeh, F.
  • Kalogirou, S.A.
  • Ali, Y.
  • Sopian, K.

Abstract

Solar radiation is a clean form of energy, which is required for almost all natural processes on earth. Solar-powered air-conditioning has many advantages when compared to a conventional electrical system. This paper presents a solar cooling system that has been designed for Malaysia and similar tropical regions using evacuated tube solar collectors and LiBr absorption unit. The modeling and simulation of the absorption solar cooling system is carried out with TRNSYS program. The typical meteorological year file containing the weather parameters for Malaysia is used to simulate the system. The results presented show that the system is in phase with the weather, i.e. the cooling demand is large during periods that the solar radiation is high. In order to achieve continuous operation and increase the reliability of the system, a 0.8m3 hot water storage tank is essential. The optimum system for Malaysia's climate for a 3.5kW (1 refrigeration ton) system consists of 35m2 evacuated tubes solar collector sloped at 20°.

Suggested Citation

  • Assilzadeh, F. & Kalogirou, S.A. & Ali, Y. & Sopian, K., 2005. "Simulation and optimization of a LiBr solar absorption cooling system with evacuated tube collectors," Renewable Energy, Elsevier, vol. 30(8), pages 1143-1159.
    • Handle: RePEc:eee:renene:v:30:y:2005:i:8:p:1143-1159
    DOI: 10.1016/j.renene.2004.09.017
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    References listed on IDEAS

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    1. Ghaddar, N.K. & Shihab, M. & Bdeir, F., 1997. "Modeling and simulation of solar absorption system performance in Beirut," Renewable Energy, Elsevier, vol. 10(4), pages 539-558.
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