AHRI Low GWP Alternative Refrigerants Evaluation Program (Low GWP AREP)
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1 AHRI Low GWP Alternative Refrigerants Evaluation Program (Low GWP AREP) 2014 Purdue Conferences Xudong Wang and Karim Amrane Air Conditioning, Heating, and Refrigeration Institute (AHRI)
2 Low GWP AREP Introduction Cooperative research & testing program to identify suitable alternatives to high GWP refrigerants Evaluation of candidates strongly desired by OEMs assess research & development needs accelerate industry s response to environmental challenges avoid duplicative work The program is NOT to prioritize refrigerants, rather test and present objective results in a consistent manner The program started in March 2011 Phase I testing was completed in 2013 Phase II testing is newly launched in 2014 new refrigerants high ambient testing Final reports available to the public
3 Low GWP AREP Phase I 38 refrigerants were evaluated in Phase I testing Phase I was completed at the end of 2013: Submitted Reports Approved Available to the Public Low GWP AREP Conference was held on January 16, 2014 in New York City. 19 technical presentations from 16 test companies more than 150 attendees
4 Refrigerants in Phase I Testing Baseline Refrigerant Composition (Mass%) Classification GWP 100 R22 ARM 32a R 32/R 125/R 134a/R 1234yf (25/30/25/20) A1* 1577 LTR4X R 32/R 125/R 134a/R 1234ze(E) (28/25/16/31) A1* 1295 D52Y R 32/R 125/R 1234yf (15/25/60) A2L* 979 L20 R 32/R 152a/R 1234ze(E) (45/20/35) A2L* 331 LTR6A R 32/R 744/R 1234ze(E) (30/7/63) A2L* 206 R290 R A3 <20 R1270 R A3 <20 R717 R B2L <1 *estimated safety group rating, a safety group has not yet been assigned by ASHRAE in accordance with requirements of ASHRAE Standard
5 Refrigerants in Phase I Testing Baseline Refrigerant Composition (Mass%) Classification GWP 100 AC5X R 32/R 134a/R 1234ze(E) (7/40/53) A1* 622 ARM 41a R 32/R 134a/R 1234yf (6/63/31) A1* 943 D 4Y R 134a/R 1234yf (40/60) A1* 574 N13a R 134a/R 1234yf/R 1234ze(E) (42/18/40) A1* 604 N13b R 134a/R 1234ze(E) (42/58) A1* 604 R 134a XP 10 R 134a/R 1234yf (44/56) A1* 631 AC5 R 32/R 152a/R 1234ze(E) (12/5/83) A2L* 92 ARM 42a R 134a/R 152a/R 1234yf (7/11/82) A2L* 117 R1234yf R1234yf 100 A2L 4 R1234ze R1234ze 100 A2L 6 R600a R600a 100 A3 <20 R290/R600a R290/R600a (40/60) A3* <20 *estimated safety group rating, a safety group has not yet been assigned by ASHRAE in accordance with requirements of ASHRAE Standard
6 Refrigerants in Phase I Testing Baseline Refrigerant Composition (Mass%) Classification GWP 100 ARM 32a R 32/R 125/R 134a/R 1234yf (25/30/25/20) A1* 1577 DR 33 R 32/R 125/R 134a/R 1234yf (24/25/26/25) A1* 1410 R404A N40a R 32/R 125/R 134a/R 1234yf/R 1234ze(E) (25/25/21/9/20) A1* 1346 N40b R 32/R 125/R 134a/R 1234yf (25/25/20/30) A1* 1331 ARM 30a R 32/R 1234yf (29/71) A2L* 199 ARM 31a R 32/R 134a/R 1234yf (28/21/51) A2L* 491 D2Y65 R 32/R 1234yf (35/65) A2L* 239 DR 7 R 32/R 1234yf (36/64) A2L* 246 L40 R 32/R 152a/R 1234yf/R 1234ze(E) (40/10/20/30) A2L* 285 R 32 R A2L 675 R 32/R 134a R 32/R 134a (50/50) A2L* 1053 R290 R A3 <20 *estimated safety group rating, a safety group has not yet been assigned by ASHRAE in accordance with requirements of ASHRAE Standard
7 Refrigerants in Phase I Testing Baseline Refrigerant Composition (Mass%) Classification GWP 100 ARM 70a R 32/R 134a/R 1234yf (50/10/40) A2L* 482 D2Y60 R 32/R 1234yf (40/60) A2L* 272 DR 5 R 32/R 1234yf (72.5/27.5) A2L* 490 R410A HPR1D R 32/R 744/R 1234ze(E) (60/6/34) A2L* 407 L41a R 32/R 1234yf/R 1234ze(E) (73/15/12) A2L* 494 L41b R 32/R 1234ze(E) (73/27) A2L* 494 R32 R A2L 675 R32/R134a R 32/R 134a (95/5) A2L* 713 R32/R152a R 32/R 152a (95/5) A2L* 647 *estimated safety group rating, a safety group has not yet been assigned by ASHRAE in accordance with requirements of ASHRAE Standard
8 Overview of Testing in Phase I Sixteen (16) U.S. companies/organizations and five (5) international companies/organizations are conducting tests Six (6) refrigerant producers supplied thirty eight (38) refrigerant candidates Tests cover the following applications Air conditioners and heat pumps (air source, water source, VRF, unitary, mini split) (11) Chillers (screw (3), centrifugal(1)) Refrigeration (commercial refrigerator (1), ice machine(2)) Transport refrigeration (1) Bus air conditioning (2) Compressors (10)
9 Testing Methods and Conditions Testing companies follow industry wide accepted standards to conduct tests Equipment type Method of Testing Performance Rating Compressor ASHRAE Standard 23 AHRI Standard 540 Unitary Air Conditioners and Heat Pumps ASHRAE Standard 37 AHRI Standard 210/240 Water Source Heat Pumps ISO Standard ISO Standard Chillers (centrifugal, rotary screw, and reciprocating) ASHRAE Standard 30 AHRI Standard 550/590 Ice Makers ASHRAE Standard 29 AHRI Standard 810 Commercial Refrigerators ASHRAE Standard 72 AHRI Standard 1200/1201 Ductless VRF AHRI Standard 1230 AHRI Standard 1230
10 Tests Conducted in Phase I Compressor calorimeter test (18 reports) System drop in test (20 reports) only minor modifications are allowed System soft optimization test (3 reports) systems are modified for the alternative refrigerants using standard production line components
11 Example of Test Results in Phase I Compressors Hermetic reciprocating (115V/60Hz/single phase/8.77cm 3 ) Hermetic scroll (208/230V/60Hz/single phase/50.96cm 3 )
12 Example of Test Results in Phase I Residential HPs Seven air source heat pumps (2~8 ton)
13 Example of Test Results in Phase I Residential HPs
14 Example of Test Results in Phase I Ice Makers (ambient temperature: 32 C; water temperature 21 C)
15 Example of Test Results in Phase I Chillers
16 Conclusions and Future Work Phase I testing completed in 2013 It appears unlikely that a single refrigerant will replace R 22, R 134a, R 404A, and R 410A. The results should not be viewed as universally applicable. Some results showed inconsistency, and warrant further investigation in the future. Phase II testing started in Twenty two test entities submitted their test plans. Compressor (9) Drop in (14) Soft optimization (7) Some tests cover gaps in Phase I: Rooftop unit High ambient conditions
17 AHRI Low GWP AREP Phase II 25 new refrigerant candidates proposed: Baseline Refrigerants R-134a R-404A R-410A R-22/R-407C R-123 Alternative Refrigerant Candidates Classifications according to ASHRAE Standard 34 A1 A2L A2 BRB36 ARM-32b, ARM-35, D42Yb, D42Yz, DR-34, N-40c 2, R-442A 6 ARM-32c, D542HT, DR-91, R-442A 6 ARC-1, R1233zd(E) ARM-20a, ARM-20b, HDR110 ARM-71a, DR-5A, HPR2A L L DR-3, L-20a 5 LPR1A ARM-25a Some samples in Phase I will also be available for testing in Phase II.
18 Acknowledgments Testing Entities: ARMINES MINES ParisTech BITZER Bristol Compressor International Inc. Carrier Corporation Carlyle Compressor Climate Master Daikin Applied America s, Inc. Daikin Industries Ltd Danfoss Embraco Brazil Embraco Slovakia Sro Emerson Climate Technologies Friedrich Air Conditioning Company, LTD. Follett Corporation GD Midea Air conditioning Equipment Co.,Ltd Goodman Manufacturing Hillphoenix Hussmann Johnson Controls, Inc. Kold Draft International, LLC Lennox Industries Inc. LG Electronics Manitowoc Ice, Inc. Oak Ridge National Laboratory Shanghai Hitachi Electrical Appliances CO.,LTD Tecumseh Company Co. Thermo King / Ingersoll Rand Trane/ Ingersoll Rand University of Maryland WaterFurnace International Inc Zamil Air Conditioners Refrigerant Suppliers Arkema, Inc. ComStar Intermational Inc Daikin Industries Ltd E.I.du Pont de Nemours&Co Honeywell International, Inc Mexichem Fluor, Inc National Refrigerants, Inc
19 Thank you for your attention!
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