Honeywell RefrigerantsReduced GWP Refrigerants Heat Pump SystemsJanuary 11, 2019

AGENDA

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➢Overview of Refrigerant Options

➢Performance Evaluation in Reversible Heat Pump

➢Conclusions

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Current Refrig.N Series

Non Flammable (A1)L Series

Mildly Flammable (A2L)

R-123GWP= 79

R-134aGWP=1430

R-22GWP=1810

R-404AGWP=3922

R-410AGWP=2088

Note: All GWP values from the IPCC, “AR4”

Solstice® ze(R-1234ze(E))

GWP<1

Solstice® zd(R-1233zd(E))

GWP=1

Solstice® N13(R-450A)

GWP=604

Solstice® N20GWP=988

Solstice® N40(R-448A)

GWP=1387

Solstice® yf(R-1234yf)

GWP<1

Solstice® L20(R-444B)

GWP=295

Solstice® L40X(R-455A)

GWP=148

Solstice® L41y(R-452B)

GWP=698

Commercial Refrigeration

High Temperature Heat Pump

Stationary A/CHeat Pump

Commercial Refrigeration

Self-Contained Refrigeration

Commercial A/C

MP Chillers

Solstice® N40(R-448A)

GWP=1387

Solstice® L41z(R-447B)

GWP=740

MP Chillers

HP Chillers

Solstice® HFO Blends for Low, Medium & High Pressure Applications

Overview of Refrigerant Options

HDR146GWP=733

HDR126

GWP=141

HDR147GWP=399

HDR142

GWP=89

Fluid HGWP=1

HDR-127GWP=1

HDR-148GWP=1

HDR137(R-515B*)GWP=292

*Provisional ASHRAE number

R466A*GWP=733

LP Chillers

Heat Pump Water Heater

Heat Pump Water Heater

Stationary A/CHeat Pump

Heat Pump Water Heater

HDR-147GWP=399

HDR-146 CharacteristicsR32/R125/CF3I (49%/11.5%/39.5%)

➢ A1 ASHRAE classification

➢ HDR-146 received preliminary A1 classification (R-466A)

➢ Official WEEL OEL for CF3I received at 500 (Class “A”, low toxicity)

➢ Last year, WEEL committee assigned OEL of 500 based on toxicity test results

➢ CF3I was assigned provisional number R-13I1 with A1 (non-flammable, non-

toxic) ASHRAE classification

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TESTS CONDITIONS: AHRI STANDARD 210

PERFORMANCE OF R-410A REPLACEMENTS

Name ASHRAEGWP

(AR4)

Q

(AHRI A)

COP

(AHRI B)

Flow

rate

Diff. Tdisch

(°C)Pdisch

Comp.

Ratio

Evap.

Glide (K)

R410A A1 2088 100% 100% 100% 0 100% 100% 0.1

R32 A2L 675 105% 100% 70% + 17.2 102% 100% 0.0

R466A

(HDR-146)A1 733 99% 100% 105% + 8.0 95% 99% 1.2

HDR-147 A1 399 95% 103% 108% + 10.8 89% 100% 3.8

➢ HDR146 (GWP<750)

➢ Closest match to R410A’s performance. Can be used with same size/design

of compressor and heat exchangers

➢ Small evaporator glide shows no significant impact on heating mode (frost

formation)

➢ HDR147(GWP<400)

➢ Capacity within 5% of R410A with slightly better efficiency. Will need slightly

higher compressor displacement.5

PERFORMANCE EVALUATION (3 Ton, 13 SEER R410A Heat Pump)

➢ Blends were tested with EEV to match R410A superheat (based on mid-point)

➢ HDR146 shows close match in capacity and HDR147 shows capacity within 5%

➢ Both, HDR146 and HDR147 show higher efficiency at high ambient conditions

Higher efficiency

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R466A

DISCHARGE TEMPERATURE7

➢ Discharge temperature of HDR-146 is close to R410A (significant advantage

over R32)

50

60

70

80

90

100

110

120

130

140D

isch

arge

Te

mp

era

ture

[De

g. C

]

R410A R32 HDR-146

Cooling Heating49oC Ambient Temperature

Compressor Maximum DischargeTemperature

CONCLUDING REMARKS

• This work introduced R466A, a replacement for R410A that fulfills

regulations (GWP<750), maintains high level of energy efficiency, and

provides the same level of safety (ASHRAE class 1).

• Experimental evaluation in typical residential heat pump system show

the energy efficiency has a close match to R410A at typical ambient

temperatures.

• It was also found that this refrigerant provide significant higher

efficiency at high ambient temperatures (+5% at 55C).

• Currently working with the industry to evaluate many types of

compressors, heat exchangers and systems.

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QUESTIONS

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