Experimental investigation on condensation heat transfer and pressure drop of R134a in a plate heat exchanger |
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| Authors: | Z-Y Shi J-P Chen V Grabenstein S Kabelac |
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| Institution: | (1) Institute of Refrigeration & Cryogenics, Shanghai Jiaotong University, Shanghai, 200240, China;(2) Institute of Thermodynamics, Helmut Schmidt University, 22043 Hamburg, Germany |
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| Abstract: | Condensation heat transfer of R134a in a vertical plate heat exchanger was investigated experimentally. The local heat transfer
coefficients are determined by means of the measured local wall temperatures. A differential energy balance model is developed
for data evaluation. It is found that the correlation proposed by Shah using Ψ and Z factors is suitable for condensation in plate heat exchangers and is adopted to fit the measured data. |
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