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Title: TEST REPORT #33: Compressor Calorimeter Test of R-410A Alternative: R-32/R-134a Mixture Using a Scroll Compressor

This report investigates the tested performance of lower - GWP candidate refrigerant, 94.07 wt% R - 32 + 5.93 wt % R - 134 a mixture (hereafter referred to as R - 32/134a), as an alternative to baseline refrigerant R - 410 A using a 36,000 Btu/hr compressor calorimeter located at the Heat Exchanger Advanced Testing Facility at Oak Ridge National Laboratory . These tests were conducted during May and August 2013. R - 410A is a near - azeotropic blend of R - 32 and R - 125 with 0.5/0.5 mass fraction and has a GWP 100 of 2100. R - 32 and R - 134a are pure refrigerants and have GWP 100 of 716 and 1370 1, respectively. Based on the GWP 100 values of pure refrigerants and their mass fraction in the blend, GWP 100 of R - 32/134a, which is under development by National Refrigerant, is 755. This report compares various performance parameters, such as cooling capacity, compressor power, refrigerant mass flow rate, EER, isentropic efficiency and discharge temperature of the alternative refrigerant to that of R - 410 A.
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  1. ORNL
Publication Date:
OSTI Identifier:
Report Number(s):
ORNL/TM - 2013/414
R&D Project: BT0101000, BT0400000; 312856CE, 312856MN
DOE Contract Number:
Resource Type:
Technical Report
Research Org:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE; USDOE Office of Energy Efficiency and Renewable Energy (EERE), Building Technologies Program (EE-2J)
Contributing Orgs:
Air-Conditioning, Heating, and Refrigeration Institute
Country of Publication:
United States
42 ENGINEERING refrigerant; GWP candidate refrigerant; Heat Exchanger Advanced Testing Facility at Oak Ridge National Laboratory; Compressor Calorimeter Test Loop