Experimental Measurements of Condensation Heat Transfer Coefficients for Refrigerant HFO-1234yf

Paper #:
  • 2013-01-1493

Published:
  • 2013-04-08
Citation:
Mathur, G., "Experimental Measurements of Condensation Heat Transfer Coefficients for Refrigerant HFO-1234yf," SAE Int. J. Passeng. Cars - Mech. Syst. 6(2):1001-1012, 2013, https://doi.org/10.4271/2013-01-1493.
Pages:
12
Abstract:
Experimental tests were conducted on a parallel flow condenser with HFO-1234yf as the working fluid on an AC system bench to determine average and local heat transfer coefficients during condensation of HFO-1234yf for mass flow rates that are typically encountered from idle to highway speeds (800 to 3000 rpms). A condenser from MY 2008 medium-sized sedan was used for this investigation. All original OEM parts were used with the alternate refrigerant. Same TXV set-point was used with HFO-1234yf. The magnitude of the measured heat transfer coefficient for condensation was found to be 8~12% lower in comparison to HFC-134a. The magnitudes of the pressure drop during condensation were of the same magnitude as HFC-134a system. The information from this investigation can be used to in the design of condensers for mobile air conditioning systems with HFO-1234yf as the working fluid.
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