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JSIR Vol.67(03) [March 2008] >

Title: Numerical simulation of fin and tube condenser in a R22 system charged with R407C
Authors: Rani, T Usha
Balachander, P
Keywords: R22
Fin and tube condenser
Heat transfer
Local method of analysis
Numerical simulation
Issue Date: Mar-2008
Publisher: CSIR
Abstract: Present study simulates condensation heat transfer and pressure drop characteristics of R407C, when it is charged in an air-cooled fin and tube condenser designed for R22 utilizing the local method of analysis. In this analysis, heat exchanger is divided into segments or multiple control volumes, with the outlet of one control volume being the inlet to an adjacent control volume, and so on. The properties of refrigerants viz., liquid as well as vapour phase density, viscosity, specific heat, thermal conductivity and enthalpy are calculated using subroutines from National Institute of Standards and Technology software package REFPROP. Refrigerant side as well as airside heat transfer and pressure drop are computed using reported correlations.
Page(s): 209-218
ISSN: 0022-4456
Source:JSIR Vol.67(03) [March 2008]

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