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Wadekar, V Wagner equation, for vapour pressure, Wake, Coles law of the, Wall layer transmissivity, Wall temperature: Wallis correlations: Wallis criterion, for transition from stratified to annular flow, applications in condensation, Walz' method, for laminar boundary layers, Waste heat boilers, Waste water, fouling by, Water:
critical heat flux values for, in tubes (table), emissivity of gaseous, fouling, design of heat exchangers for, liquid, properties of pool boiling curve for, at atmospheric pressure, quality, effect on fouling, saturated properties: supercritical properties of,
Thermophysical Properties at Critical and Supercritical Pressures
superheated gaseous:
Watertube boiler, Wavelengths, of blackbody radiation, Waves, interfacial, effect on film condensation on vertical surface, Wavy fins, in plate fin exchangers, Webb, D R Webb, R L Weber, M, Weber number, Weil, C J Welded channel head, in shell-and tube heat exchanger, Welded fins: Welded plate exchangers: Welding: Welds: Wentz and Thodos equation, for fixed-bed pressure drop, Wet-bulb temperature, Wettability, of surface, effect on pool boiling, Whalley and Hewitt correlations: White-Metzner model, for non-Newtonian fluid, Wicks, for heat pipes: Wilday, A J Wildsmith, G, Wills-Johnson flow stream analysis method for segmentally baffled shell-and-tube heat exchangers, Wilson, D I Window zone, in shell-and-tube heat exchangers: Winter, H H, Wire matrix inserts, in heat exchangers, Wirth, K E, Wispy annular flow, regions of occurrence of, Work (in exergy analysis) Working fluid, selection of for heat pipe,

Index

HEDH
A B C D E F G H I J K L M N O P Q R S T U V W
Wadekar, V Wagner equation, for vapour pressure, Wake, Coles law of the, Wall layer transmissivity, Wall temperature: Wallis correlations: Wallis criterion, for transition from stratified to annular flow, applications in condensation, Walz' method, for laminar boundary layers, Waste heat boilers, Waste water, fouling by, Water:
critical heat flux values for, in tubes (table), emissivity of gaseous, fouling, design of heat exchangers for, liquid, properties of pool boiling curve for, at atmospheric pressure, quality, effect on fouling, saturated properties: supercritical properties of,
Thermophysical Properties at Critical and Supercritical Pressures
superheated gaseous:
Watertube boiler, Wavelengths, of blackbody radiation, Waves, interfacial, effect on film condensation on vertical surface, Wavy fins, in plate fin exchangers, Webb, D R Webb, R L Weber, M, Weber number, Weil, C J Welded channel head, in shell-and tube heat exchanger, Welded fins: Welded plate exchangers: Welding: Welds: Wentz and Thodos equation, for fixed-bed pressure drop, Wet-bulb temperature, Wettability, of surface, effect on pool boiling, Whalley and Hewitt correlations: White-Metzner model, for non-Newtonian fluid, Wicks, for heat pipes: Wilday, A J Wildsmith, G, Wills-Johnson flow stream analysis method for segmentally baffled shell-and-tube heat exchangers, Wilson, D I Window zone, in shell-and-tube heat exchangers: Winter, H H, Wire matrix inserts, in heat exchangers, Wirth, K E, Wispy annular flow, regions of occurrence of, Work (in exergy analysis) Working fluid, selection of for heat pipe,
X Y Z
W Water: supercritical properties of,
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Thermophysical Properties at Critical and Supercritical Pressures

DOI 10.1615/hedhme.a.000539

5.5.16 Thermophysical properties at critical and supercritical pressures

I. L. Pioro

Prior to a general discussion on thermophysical properties of fluids at critical and supercritical pressures it is important to define special terms and expressions used at these conditions. For better understanding of these terms and expressions a thermodynamic diagram is shown in Figure 1.

Figure 1 Pressure-temperature diagram for water

A. Definitions of selected terms and expressions related to critical and supercritical regions1

Compressed fluid is a fluid at a pressure above the critical pressure but at a temperature below the critical temperature.

Critical point (also called a critical state) is the point where the distinction between the liquid and gas (or vapor) phases disappears, i.e., both phases have the same temperature, pressure and volume. The critical point is characterized by the phase state parameters Tcr, pcr and Vcr, which have unique values for each pure substance.

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