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Pressure drop of HFC refrigerants inside evaporator and condenser coils as determined by CFD

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  • Smith, S. J.
  • Shao, L.
  • Riffat, S. B.

Abstract

This paper presents pressure-drop data for inside evaporator and condenser coils of refrigeration and air conditioning systems using hydrofluorocarbon (HFC) refrigerants and blends. Computational fluid dynamics (CFD) was used to simulate the two-phase flows of different refrigerants through two types of coil common to the evaporator and condenser components found in a typical vapour-compression system. A comparison of single-phase and two-phase flows is made with respect to pressure drop across the evaporator, firstly at constant temperature for single-phase saturated vapour, and secondly at increasing temperature with varying components such as density and viscosity for two-phase vapour. Pressure losses of HFC refrigerants and blends were compared with data for conventional refrigerants and data provided by other researchers.

Suggested Citation

  • Smith, S. J. & Shao, L. & Riffat, S. B., 2001. "Pressure drop of HFC refrigerants inside evaporator and condenser coils as determined by CFD," Applied Energy, Elsevier, vol. 70(2), pages 169-178, October.
    • Handle: RePEc:eee:appene:v:70:y:2001:i:2:p:169-178
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    Cited by:

    1. Comakli, K. & Simsek, F. & Comakli, O. & Sahin, B., 2009. "Determination of optimum working conditions R22 and R404A refrigerant mixtures in heat-pumps using Taguchi method," Applied Energy, Elsevier, vol. 86(11), pages 2451-2458, November.

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