A new correlation for heat capacities
- Georgia Inst. of Tech., Atlanta, GA (United States). School of Chemical Engineering
The simple correlation given here estimates heat capacities for saturated vapors and liquids over the entire two-phase region. The technique is accurate near the critical point, and correctly predicts limiting behavior of the heat capacities of saturated phases. It can also predict, without using splines, the rapid changes in heat capacities that occur near the critical point, but it predicts only gradual changes elsewhere. To generate model parameters for a chemical or azeotropic mixture, the critical temperature and saturated heat-capacity measurements at three different temperatures must be known. These data are then used to compute two adjustable parameters, which in turn yield the heat capacities of the liquid or vapor. The properties and adjustable parameters for 31 refrigerants are listed in Tables 1, 2, and 3.
- OSTI ID:
- 7109352
- Journal Information:
- Chemical Engineering (New York); (United States), Journal Name: Chemical Engineering (New York); (United States) Vol. 101:6; ISSN CHEEA3; ISSN 0009-2460
- Country of Publication:
- United States
- Language:
- English
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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
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ALKANES
ALKENES
BOILING POINTS
CHLOROFLUOROCARBONS
COMPILED DATA
DATA
ENTHALPY
FLUID FLOW
FLUIDS
HYDROCARBONS
INFORMATION
MATHEMATICAL MODELS
NUMERICAL DATA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
PHYSICAL PROPERTIES
REFRIGERANTS
SPECIFIC HEAT
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
TWO-PHASE FLOW
WORKING FLUIDS