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Experimental verification of the variable effect absorption refrigeration cycle

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  • Xu, Z.Y.
  • Wang, R.Z.

Abstract

A variable effect absorption refrigeration cycle is proposed which can obtain a rising COP (Coefficient of Performance) versus the rising generation temperature. This novel cycle could be applied for solar absorption cooling efficiently. In this paper, a 50 kw variable effect (also named as 1.n effect) absorption chiller using LiBr-water as working fluid was designed. Its rated condition is generation temperature of 125 °C, condensation temperature of 40 °C, absorption temperature of 35 °C and evaporation temperature of 5 °C. The variable effect absorption chiller was then manufactured and tested. Data from the experiment showed that the chiller can get a rising COP from 0.69 to 1.08 under generation temperature from 95 °C to 120 °C as it was expected. The average error between theoretical COP and experimental COP was 7.3%. Feasibility of the variable effect absorption chiller and the effectiveness of the design have been verified.

Suggested Citation

  • Xu, Z.Y. & Wang, R.Z., 2014. "Experimental verification of the variable effect absorption refrigeration cycle," Energy, Elsevier, vol. 77(C), pages 703-709.
    • Handle: RePEc:eee:energy:v:77:y:2014:i:c:p:703-709
    DOI: 10.1016/j.energy.2014.09.044
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    References listed on IDEAS

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    1. Zhai, X.Q. & Wang, R.Z., 2009. "A review for absorbtion and adsorbtion solar cooling systems in China," Renewable and Sustainable Energy Reviews, Elsevier, vol. 13(6-7), pages 1523-1531, August.
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    5. Xu, Z.Y. & Wang, R.Z. & Xia, Z.Z., 2013. "A novel variable effect LiBr-water absorption refrigeration cycle," Energy, Elsevier, vol. 60(C), pages 457-463.
    6. Izquierdo, M. & Marcos, J.D. & Palacios, M.E. & González-Gil, A., 2012. "Experimental evaluation of a low-power direct air-cooled double-effect LiBr–H2O absorption prototype," Energy, Elsevier, vol. 37(1), pages 737-748.
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