Compressor Calorimeter Test of

Refrigerant Blend R449A

Miguel Boscan

Jan-21, 2016

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Refrigerants

Lubricant

/ BSE32 (Solest 31-HE)

No Modifications

Other Info

/ Testing Standard: EN13771-1:2003

/ Refrigerant data source: ASEREP v3.5.0

Test Setup

Refrigerant GWP (AR4) Composition

(Mass %)

R404A 3922 R125/R143a/R134a

(44/52/4)

R449A 1397 R32/R125/R134a,R1234yf

(24/25/26/25)

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Ecoline Series

/ 4GE-23Y-40P

Semi-hermetic reciprocating compressor

380-420V / 3 / 50Hz (1450 RPM)

2984CFH @ 50Hz (3604CFH @ 60Hz)

Compressor

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Operating Range

RGT: 20°C (68°F)

Subcooling: 0 K

Test Conditions

Min Max

SST -45°C (-49°F) 0°C (32°F)

SDT 20°C (68°F) 60°C (140°F)

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Results − Capacity Comparison

80%

85%

90%

95%

100%

105%

110%

115%

120%

-40 -35 -30 -25 -20 -15 -10 -5 0

Cap

acit

y (R

44

9A

/R4

04

A)

Saturated Suction Temperature °C (°F)20°C RGT, 0 K SC

Compressor Capacity(R449A/404A)

Tc=60°C

Tc=45°C

Tc=40°C

Tc=20°C

(-40) (-31) (-22) (-13) (-4) (5) (14) (23) (32)

R404A (140°F)

(113°F)

(104°F)

( 68°F)

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Results − Power Comparison

80%

85%

90%

95%

100%

105%

110%

115%

120%

-40 -35 -30 -25 -20 -15 -10 -5 0

Po

we

r (

R4

49

A/R

40

4A

)

Saturated Suction Temperature °C (°F)20°C RGT, 0 K SC

Power(R449A/404A)

Tc=60°C

Tc=45°C

Tc=40°C

Tc=20°C

(-40) (-31) (-22) (-13) (-4) (5) (14) (23) (32)

R404A (140°F)

(113°F)

(104°F)

( 68°F)

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Results − COP Comparison

80%

85%

90%

95%

100%

105%

110%

115%

120%

-40 -35 -30 -25 -20 -15 -10 -5 0

CO

P (

R4

49

A/R

40

4A

)

Saturated Suction Temperature °C (°F)20°C RGT, 0 K SC

COP(R449A/404A)

Tc=60°C

Tc=45°C

Tc=40°C

Tc=20°C

(-40) (-31) (-22) (-13) (-4) (5) (14) (23) (32)

R404A (140°F)

(113°F)

(104°F)

( 68°F)

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Results − Discharge Gas Temperature Data

20

40

60

80

100

120

140

160

-50 -40 -30 -20 -10 0

DG

T(°

C)

Saturated Suction Temperature °C (°F)20°C RGT, 0 K SC

DGT (R-404A)

Tc=60°C

Tc=45°C

Tc=40°C

Tc=20°C

20.0

40.0

60.0

80.0

100.0

120.0

140.0

160.0

-50 -40 -30 -20 -10 0

DG

T(°

F)Saturated Suction Temperature °C (°F)

20°C RGT, 0 K SC

DGT (R449A)

Tc=60°C

Tc=45°C

Tc=40°C

Tc=20°C

(320)

(284)

(248)

(212)

(176)

(140)

(104)

(68)

(-58) (-40) (-22) (-4) (14) (32) (-58) (-40) (-22) (-4) (14) (32)

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95%

100%

105%

110%

115%

120%

125%

130%

135%

140%

-40 -35 -30 -25 -20 -15 -10 -5 0

Dis

char

ge S

H (

R4

49

A/R

40

4A

)

Saturated Suction Temperature °C (°F)20°C RGT, 0 K SC

Discharge Gas Superheat(R449A/404A)

Tc=60°C

Tc=45°C

Tc=40°C

Tc=20°C

Results −

Discharge Gas Temperature Comparison

(-40) (-31) (-22) (-13) (-4) (5) (14) (23) (32)

(140°F)

(113°F)

(104°F)

( 68°F)

R404A

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/ Capacity

At the lower SST and SDTs of the tested conditions

R449A has lower capacity than R404A

As SST or SDT decreases

R449A has a reduction in capacity as a ratio to R404A

Summary

Refrigerant Capacity Power COP

R449A

Over Entire

Test Range-19% to +5% -16% to -10 -4% to +17%

Average -7.4% -13.4% +6.8%

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/ Power

At all test conditions

R449A used less power than R404A

As SST or SDT decreases

R449A has a reduction in power as a ratio to R404A

Summary

Refrigerant Capacity Power COP

R449A

Over Entire

Test Range-19% to +5% -16% to -10 -4% to +17%

Average -7.4% -13.4% +6.8%

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Summary

/ COP

As the SST and SDT decrease, the reduction of power was

greater than the reduction in capacity (as a ratio to R404A)

COP for R449A is greater than R404A at nearly all tested

conditions

At the lowest tested condition for SST and SDT

-35°C (-31°F) / +20°C (68°F)

R449A COP was lower than R404A

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/ Discharge Gas Temperature / Discharge Gas Superheat

At all tested conditions

R449A greater than R404A

approx. 5 K (8°F) to 20 K (37°F) higher

Discharge Superheat is 13 to 35% higher for R449A

Summary

Refrigerant∆ DischargeTemperature

∆ DischargeTemperature

Discharge Superheat

R449A

Over Entire

Test Range5 K to 20 K 8°F to 37°F +13% to +35%

Average 12.8 K 23°F +23%

Thank you