January 16 th, 2014 New York City

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1 Compressor Calorimeter Test of R-404A Alternative Refrigerants ARM-31a, D2Y-65, L-40, and R-32/R- 134a (50/50) in Medium Temperature Refrigeration Scroll Compressor Som Shrestha Omar Abdelaziz January 16 th, 2014 New York City

2 Overview Compressor Calorimeter Test Results 2 Presentation name

3 Test Setup Instrument Measured Accuracy RTDs Temperature ± 0.4 F T, P Condenser Sub Cooler SC Glycol Cond Glycol Mass Flow Sensor Power and Energy Meter Pressure Transmitter Pressure Transmitter Refrigerant mass flow rate Compressor and evaporator power Refrigerant pressure, high pressure side Refrigerant pressure, low pressure side ±0.10% ±0.5% 0.25% F.S. [750 psia] 0.25% F.S. [200 psia] 3 Presentation name

4 Test Conditions Test condition: 70 F to 140 F SDT in 10 F increments -10 F to 35 F SST in 5 F increments Either 20 F or 40 F superheat or 65 F suction temperature Cooling capacity normalized for 0 F subcooling Max discharge temperature 275 F Properties of refrigerants were calculated using REFPROP version 9.0 (Lemmon et al., 2010). Interaction parameters and mixture files provided by the refrigerant manufacturers were used in REFPROP to calculate properties of the alternative refrigerants (except for R-32/R- 134a mixture) tested. 4 Presentation name

5 Manufacturer's Compressor Performance Data Evaporating ( F) / Condensing ( F) 20 / 120 Return Gas ( F) / Liquid to Expansion Valve ( F) 65 / 120 Capacity (Btu/hr) Power (Watts) 3320 Current (Amps) 15.6 EER (Btu/Wh) 7.1 Mass Flow (lbs/hr) 495 The measured cooling capacity and EER were within ± 2.7% and ± 0.2%, respectively, of the manufacturer s data. Intermediate tests confirmed repeatability of cooling capacity within 0.45% and EER within 0.5% at standard test conditions. 5 Presentation name

6 Alternative Refrigerants Tested Refrigerant Components Mass Fraction, % GWP 100 R-404A R-125 / R-143a / R-134a 44/52/ ARM-31a R-32 / R-134a / R-1234yf 28/21/51 490* D2Y-65 R-32 / R-1234yf 35/65 253* L-40 R-32 / R-152a / R-1234yf / R-1234ze(E) 40/10/20/30 302* R-32/R-134a R-32 / R-134a 50.5/ * * Calculated based on GWP of pure refrigerants and their mass fraction in the blend 6 Presentation name

7 Results Refrigerant ARM-31a D2Y-65 L-40 R-32 + R-134a mixture Test Condition Deviation from baseline (R-404A) EER (%) Capacity (%) Discharge Temperature ( F) Evap 20 F/ Cond 120 F +9.7% -5.6% +24 Over the range -4.4% to +22.8% -18.5% to +6.5% +16 to +36 Evap 20 F/ Cond 120 F +6.5% +0.6% +26 Over the range -4.2% to +14.6% -11.0% to +9.7% +18 to +36 Evap 20 F/ Cond 120 F +9.8% -4.9% +37 Over the range -5.4% to +24.7% -20.0% to +8.9% +25 to +53 Evap 20 F/ Cond 120 F +4.2% +3.8% +63 Over the range -7.6% to +15.2% -12.6% to +18% +38 to Presentation name

8 Results Saturation Discharge Temperature, F EER Ratio Saturation Suction Temperature, F 8 Presentation name

9 Results Saturation Discharge Temperature, F Capacity Ratio Saturation Suction Temperature, F 9 Presentation name

10 Results Saturation Discharge Temperature, F Discharge Temperature Difference, F Saturation Suction Temperature, F 10 Presentation name

11 Results Saturation Discharge Temperature, F Discharge Temperature Difference, F Saturation Suction Temperature, F 11 Presentation name

12 Conclusions EER and cooling capacity for all four alternative refrigerants are higher than that of R-404A at higher SST SDT and lower at lower SST and SDT Discharge temperatures of all the alternative refrigerants were significantly higher than that of R-404A at all the test conditions Note: Complete test data and other details are provided at the AHRI AREP 2013 as test report number Presentation name

13 Acknowledgements Funding from DOE-BTO and Mr. Antonio Bouza, HVAC&R, and Water Heating TDM at the U.S. DOE for his support Dr. Isaac Mahdereka, Mr. Vishaldeep Sharma, Randy Linkous, and Brian Goins, for their support Dr. Xudong Wang from AHRI for his support Arkema, Daikin, Honeywell, and National Refrigerants for providing lower-gwp alternative refrigerants to test 13 Presentation name

14 References ANSI/AHRI , Standard for Performance Rating of Positive Displacement Refrigerant Compressors and Compressor Units ANSI/ASHRAE Standard , Methods of Testing for Rating the Performance of Lemmon, E.W. Huber, M.L., and McLinden, M. O., 2010, NIST Standard Reference Database 23, NIST Reference Fluid Thermodynamic and Transport Properties REFPROP. Version 9.0 User's Guide, November Som Shrestha, Vishaldeep Sharma, Omar Abdelaziz, Compressor Calorimeter Test of R-404A Alternatives ARM-31a, D2Y- 65, L-40, and R-32/R-134a (50/50), TEST REPORT #21, Air- Conditioning, Heating, and Refrigeration Institute Low-GWP Alternative Refrigerants Evaluation Program al_reports/ahri%20low-gwp%20arep-rpt-021.pdf 14 Presentation name

15 Thank You! Som Shrestha 15 Presentation name

16 Appendix 16 Presentation name

17 Results: EER Ratios EER ARM 31a / EER R 404A ARM-31a Suction Dew Point Temperature, F EER L 40 / EER R 404A L Suction Dew Point Temperature, F Discharge Dew Point Temp ( F) Discharge Dew Point Temp ( F) EER D2Y 65 / EER R 404A D2Y-65 Suction Dew Point Temperature, F EER R32 + R 134a mixture / EER R 404A R32 + R-134a Suction Dew Point Temperature, F Discharge Dew Point Temp ( F) Discharge Dew Point Temp ( F) Presentation name

TEST REPORT #65. Compressor Calorimeter Test of Refrigerant L-41-2 (R-447A) in a R-410A Scroll Compressor

TEST REPORT #65. Compressor Calorimeter Test of Refrigerant L-41-2 (R-447A) in a R-410A Scroll Compressor Air-Conditioning, Heating, and Refrigeration Institute (AHRI) Low-GWP Alternative Refrigerants Evaluation Program (Low-GWP AREP) TEST REPORT #65 Compressor Calorimeter Test of Refrigerant L-41-2 (R-447A)