transport properties of dupont(tm) suva(r) refrigerants ... · equations for property estimation...
TRANSCRIPT
Product Information
DuPont™ Suva®
refrigerants
Transport Properties ofDuPont™ Suva® Refrigerants:DuPont™ Suva® 404A (HP62)DuPont™ Suva® HP80DuPont™ Suva® HP81
Viscosity, Thermal Conductivityand Heat Capacity for theLiquid and Vapor
ART 18
Transport Properties ofDuPont™ Suva® Refrigerants
Suva® 404A (HP62) Suva® HP80 Suva® HP81
English Units Page
Saturated Liquid Viscosity ..................................................................................................... 2
Saturated Liquid Thermal Conductivity ................................................................................... 3
Saturated Liquid Heat Capacity ............................................................................................. 4
Vapor Viscosity at One Atmosphere ..................................................................................... 5
Vapor Viscosity At High Pressure ..................................................................................... 6–8
Vapor Thermal Conductivity at One Atmosphere .................................................................... 9
Vapor Thermal Conductivity at High Pressure ................................................................ 10–12
Vapor Heat Capacity ..................................................................................................... 13–15
Vapor Heat Capacity Ratio ............................................................................................ 16–18
Equations for Property Estimation ....................................................................................... 19
Metric Units
Saturated Liquid Viscosity ................................................................................................... 20
Saturated Liquid Thermal Conductivity ................................................................................. 21
Saturated Liquid Heat Capacity ........................................................................................... 22
Vapor Viscosity at One Atmosphere ................................................................................... 23
Vapor Viscosity At High Pressure ................................................................................. 24–26
Vapor Thermal Conductivity at One Atmosphere .................................................................. 27
Vapor Thermal Conductivity at High Pressure ................................................................ 28–30
Vapor Heat Capacity ..................................................................................................... 31–33
Vapor Heat Capacity Ratio ............................................................................................ 34–36
Equations for Property Estimation ....................................................................................... 37
Table o f Contents
2
R404A
3
R404A
4
R404A
5
R404A
6
R404A Vapor Viscosity
7
8
9
R404A
10
R404A Vapor Thermal Conductivity
11
12
13
R404A Vapor Heat Capacity
14
15
16
R404A Vapor Heat Capacity Ratio
17
18
Equat ions for Property Est imat ion
English UnitsCurves have been fitted to the measured data to obtain the following equations forestimation of properties within the ranges specified.
Liquid Viscosity in cP (–50°F to 160°F)Suva® 404A µ = 0.231 – 1.838E-3 T + 8.502E-6 T2 – 2.361E-8 T3
Suva® HP80 µ = 0.239 – 1.815E-3 T + 8.207E-6 T2 – 2.259E-8 T3
Suva® HP81 µ = 0.246 – 1.807E-3 T + 8.133E-6 T2 – 2.258E-8 T3
Liquid Thermal Conductivity in Btu/hr ft °F (–80°F to 160°F)Suva® 404A k = 0.0480 – 1.102E-4 T + 4.244E-8 T2 – 7.685E-10 T3
Suva® HP80 k = 0.0491 – 1.199E-4 T + 1.493E-8 T2 – 3.077E-10 T3
Suva® HP81 k = 0.0521 – 1.248E-4 T + 4.461E-8 T2 – 6.403E-10 T3
Liquid Heat Capacity in Btu/lb °F (–40°F to 140°F)Suva® 404A Cp = 0.306 + 4.083E-4 T – 1.194E-6 T2 + 8.056E-8 T3
Suva® HP80 Cp = 0.290 + 2.362E-4 T – 3.443E-7 T2 + 3.695E-8 T3
Suva® HP81 Cp = 0.287 + 2.403E-4 T – 3.045E-8 T2 + 3.179E–8 T3
Vapor Viscosity at One Atmosphere in cP (–20°F to 300°F)Suva® 404A µ = 0.01054 + 2.130E-5 TSuva® HP80 µ = 0.01124 + 2.154E-5 TSuva® HP81 µ = 0.01118 + 2.124E-5 T
Vapor Thermal Conductivity at One Atmosphere in Btu/lb ft °F (–20°F to 300°F)Suva® 404A k = 0.00620 + 2.046E-5 TSuva® HP80 k = 0.00564 + 2.181E-5 TSuva® HP81 k = 0.00530 + 2.155E-5 T
Where T = Temperature, °F
19
20
R404A
21
R404A
22
R404A
23
R404A
24
R404A Vapor Viscosity
25
26
27
R404A
28
R404A Vapor Thermal Conductivity
29
30
31
R404A Vapor Heat Capacity
32
33
34
R404A Vapor Heat Capacity Ratio
35
36
Equat ions for Property Est imat ion
Metric UnitsCurves have been fitted to the measured data to obtain the following equations forestimation of properties within the ranges specified.
Liquid Viscosity in µPa•s (–50°C to 70°C)Suva® 404A µ = 180.7 – 2.460 T + 2.020E-2 T2 – 1.377E-4 T3
Suva® HP80 µ = 188.5 – 2.447 T + 1.956E-2 T2 – 1.317E-4 T3
Suva® HP81 µ = 196.1 – 2.437 T + 1.928E-2 T2 – 1.326E-4 T3
Liquid Thermal Conductivity in mW/m °C (–50°C to 70°C)Suva® 404A k = 76.7 – 0.333 T + 1.38E-4 T2 – 1.06E-5 T3
Suva® HP80 k = 77.8 – 0.349 T + 1.55E-4 T2 – 1.08E-5 T3
Suva® HP81 k = 82.6 – 0.363 T + 2.11E-4 T2 – 1.41E-5 T3
Liquid Heat Capacity in J/g °C (–40°C to 60°C)Suva® 404A Cp = 1.345 + 4.435E-3 T + 6.914E-5 T2 + 2.113E-6 T3
Suva® HP80 Cp = 1.255 + 2.791E-3 T + 5.556E-5 T2 + 8.231E-7 T3
Suva® HP81 Cp = 1.238 + 2.280E-3 T + 3.862E-5 T2 + 9.053E-7 T3
Vapor Viscosity at One Atmosphere in µPa•s (–20°C to 150°C)Suva® 404A µ = 11.22 + 3.835E-2 TSuva® HP80 µ = 11.93 + 3.876E-2 TSuva® HP81 µ = 11.86 + 3.823E-2 T
Vapor Thermal Conductivity at One Atmosphere in mW/m °C (–20°C to 150°C)Suva® 404A k = 11.86 + 6.36E-2 TSuva® HP80 k = 10.97 + 6.78E-2 TSuva® HP81 k = 10.36 + 6.70E-2 T
Where T = Temperature, °C
37
(4/05) 235499 Printed in U.S.A.[Replaces: H-49740-1]Reorder No.: H-49740-2
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The information contained herein is based on technical data and tests which we believe to be reliable and is intended for use by persons havingtechnical skill, at their own discretion and risk. Because conditions of use are outside of DuPont control, we can assume no liability for resultsobtained or damages incurred through the application of the data presented.
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