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Heat Capacity (Vapor at Constant Pressure) at 25 °C and 1 atm 0.204 kcal/kg·K Vapor Pressure at 25 °C 666.1 kPa Heat of Vaporization at Boiling Point 217.2 kJ/kg (93.4 Btu/lb) Thermal Conductivity at 25 °C, liquid 0.0824 W/m·K (0.0478 Btu/hr·ft°F) Thermal Conductivity at 25 °C vapor at 1 atm 0.0145 W/m·K (0.00836 Btu/hr·ft°F)
1,1,1,2-Tetrafluoroethane (also known as norflurane (), R-134a, Klea 134a, Freon 134a, Forane 134a, Genetron 134a, Green Gas, Florasol 134a, Suva 134a, HFA-134a, or HFC-134a) is a hydrofluorocarbon (HFC) and haloalkane refrigerant with thermodynamic properties similar to R-12 (dichlorodifluoromethane) but with insignificant ozone depletion potential and a lower 100-year global warming ...
It should not be confused with the much more commonly used HFC gas R-134a, nor confused with the isomeric compound 1,1,2-trifluoroethane. 1,1,1-Trifluoroethane has a critical temperature of 73 °C. [ 1 ]
A Assuming an altitude of 194 metres above mean sea level (the worldwide median altitude of human habitation), an indoor temperature of 23 °C, a dewpoint of 9 °C (40.85% relative humidity), and 760 mmHg sea level–corrected barometric pressure (molar water vapor content = 1.16%). B Calculated values *Derived data by calculation.
The table is sortable by each of the following refrigerant properties (scroll right or reduce magnification to view more properties): Type/prefix (see legends) ASHRAE number; IUPAC chemical name; molecular formula; CAS registry number / blend name; Atmospheric lifetime in years; Semi-empirical ozone depletion potential, ODP (normalized to be 1 ...
A representative pressure–volume diagram for a refrigeration cycle. Vapour-compression refrigeration or vapor-compression refrigeration system (VCRS), [1] in which the refrigerant undergoes phase changes, is one of the many refrigeration cycles and is the most widely used method for air conditioning of buildings and automobiles.
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Once two of the three reduced properties are found, the compressibility chart can be used. In a compressibility chart, reduced pressure is on the x-axis and Z is on the y-axis. When given the reduced pressure and temperature, find the given pressure on the x-axis. From there, move up on the chart until the given reduced temperature is found.