Fluids / R-134a (saturated liquid)

Thermal conductivity of R-134a (saturated liquid) vs temperature

Thermal conductivity in W/(m·K), from -40 to 60 °C along the saturation curve. The chart and the table below are the same numbers; the table is the one you can copy.

Thermal conductivity W/(m·K)
Thermal conductivity of R-134a (saturated liquid) in W/(m·K), from -40 to 60 °C-40 °C — 0.1043 W/(m·K)-30 °C — 0.1013 W/(m·K)-20 °C — 0.0982 W/(m·K)-10 °C — 0.0951 W/(m·K)0 °C — 0.092 W/(m·K)10 °C — 0.0889 W/(m·K)20 °C — 0.0858 W/(m·K)30 °C — 0.0827 W/(m·K)40 °C — 0.0796 W/(m·K)50 °C — 0.0765 W/(m·K)60 °C — 0.0734 W/(m·K)0.0750.080.0850.090.0950.1-40-30-20-100102030405060Temperature (°C)Thermal conductivity (W/(m·K))
R-134a (saturated liquid) — everything else at 20 °C (default)
Density1,236.8 kg/m³
Vapour pressure572.1 kPa
Latent heat of vaporisation182.3 kJ/kg
Dynamic viscosity0.228 mPa·s
Specific heat1.405 kJ/(kg·K)
Thermal conductivity by temperature
Temperature (°C)Thermal conductivity (W/(m·K))Row
-400.1043published
-300.1013published
-200.0982published
-100.0951published
00.092published
100.0889published
200.0858published
300.0827published
400.0796published
500.0765published
600.0734published

Rows marked published land exactly on a source anchor and are the tabulated figure. The rest are this library’s interpolation between the two anchors either side — good enough to design with, and said out loud so you can decide that for yourself.

NIST REFPROP / ASHRAE Handbook—Fundamentals, Ch. 30, saturated liquid line · validated -40 to 60 °C · interpolated between 11 published anchors (values held, not extrapolated, past the ends) · saturated state only