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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Vacuum equipment, operational problems of, Vacuum operation, of reboilers, Valle, A, Valves: Vaned bends, single-phase flow and pressure drop in, Vapor blanketing, as mechanism of critical heat flux, Vapor injection, effect of on boiling heat transfer in tube bundles, Vapor-liquid disengagement, in kettle reboilers, Vapor-liquid separation, for evaporators, Vapor mixtures, condensation of, Vapor pressure, Vapor recompression, in evaporation, Vaporization, choice of evaporator type for, Vaporizer, double bundle, constructional features, Vapors, saturation properties of, Vapors, properties of superheated, Vasiliev, L, Vassilicos, J C, Velocity defect law: Velocity distribution: Velocity fluctuations, in turbulent pipe flow, Velocity ratio (slip ratio): Venting of condensers Vertical condensers: Vertical cylindrical fired heater, Vertical pipes: Vertical surfaces: Vertical thermosiphon reboilers: Vessels of non-circular cross section, design to ASME VIII code, Vessels of rectangular cross section, EN13445 guidance for, Vetere method, for enthalpy of vaporisation, Vibrated beds, heat transfer to, Vibration: Vinyl acetate: Vinyl benzene: Vinyl chloride: Virial equation: Virk equation for maximum drag reduction, Visco-elastic fluids, flow of, Viscometric functions (non-Newtonian flow), methods of determining, Viscosity:
of emulsions, of fluids at elevated pressure, of heat transfer media,
Properties of Heat Transfer Media
of heavy water, liquid, effect on critical heat flux in pool boiling, of liquid water, of liquids below their boiling point, of multicomponent mixtures, non-Newtonian, of pure fluids gases, liquids, relation with density for gases, of supercritical fluids, of saturated liquids and vapors, of seawater, small variations in, of superheated gases, variation with temperature: of water,
Viscosity number (Vi), Viscous dissipation, influence on heat transfer in non-Newtonian flows, Viscous heat generation, in scraped sauce heat exchangers, Viscous sublayer, in duct flow, Void fraction, Voidage, in fixed beds, definition, Volumetric heat transfer coefficient, Volumetric mass transfer coefficient, von Karman friction factor equation for fully rough surface, von Karman velocity defect law, Vortex flow, in helical coils of rectangular cross section, Vortex flow model, for twisted tube heat exchangers, Vortex shedding:

Index

HEDH
A B C D E F G H I J K L M N O P Q R S T U V
Vacuum equipment, operational problems of, Vacuum operation, of reboilers, Valle, A, Valves: Vaned bends, single-phase flow and pressure drop in, Vapor blanketing, as mechanism of critical heat flux, Vapor injection, effect of on boiling heat transfer in tube bundles, Vapor-liquid disengagement, in kettle reboilers, Vapor-liquid separation, for evaporators, Vapor mixtures, condensation of, Vapor pressure, Vapor recompression, in evaporation, Vaporization, choice of evaporator type for, Vaporizer, double bundle, constructional features, Vapors, saturation properties of, Vapors, properties of superheated, Vasiliev, L, Vassilicos, J C, Velocity defect law: Velocity distribution: Velocity fluctuations, in turbulent pipe flow, Velocity ratio (slip ratio): Venting of condensers Vertical condensers: Vertical cylindrical fired heater, Vertical pipes: Vertical surfaces: Vertical thermosiphon reboilers: Vessels of non-circular cross section, design to ASME VIII code, Vessels of rectangular cross section, EN13445 guidance for, Vetere method, for enthalpy of vaporisation, Vibrated beds, heat transfer to, Vibration: Vinyl acetate: Vinyl benzene: Vinyl chloride: Virial equation: Virk equation for maximum drag reduction, Visco-elastic fluids, flow of, Viscometric functions (non-Newtonian flow), methods of determining, Viscosity:
of emulsions, of fluids at elevated pressure, of heat transfer media,
Properties of Heat Transfer Media
of heavy water, liquid, effect on critical heat flux in pool boiling, of liquid water, of liquids below their boiling point, of multicomponent mixtures, non-Newtonian, of pure fluids gases, liquids, relation with density for gases, of supercritical fluids, of saturated liquids and vapors, of seawater, small variations in, of superheated gases, variation with temperature: of water,
Viscosity number (Vi), Viscous dissipation, influence on heat transfer in non-Newtonian flows, Viscous heat generation, in scraped sauce heat exchangers, Viscous sublayer, in duct flow, Void fraction, Voidage, in fixed beds, definition, Volumetric heat transfer coefficient, Volumetric mass transfer coefficient, von Karman friction factor equation for fully rough surface, von Karman velocity defect law, Vortex flow, in helical coils of rectangular cross section, Vortex flow model, for twisted tube heat exchangers, Vortex shedding:
W X Y Z
V Viscosity: of heat transfer media,
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Properties of Heat Transfer Media

DOI 10.1615/hedhme.a.000538

5.5 PHYSICAL PROPERTY DATA TABLES
5.5.15 Properties of Heat Transfer Media

Hans-Joachim Kilger

A. Introduction

The following tables giving the physical properties of heat tranfser media currently on the market, provide a convenient means of surveying alternative materials. For the most part, these data are drawn from specifications made by the manufacturers. They are consistent with the best knowledge and experience available and are published in good faith, without assessing the respective degrees of their exactness and without any liability accepted, especially with regard to patents in the names of third parties. The trading names are mostly registered trade names.

Heat transfer media can be classified according to their ranges of application. There are fluids for heating and fluids for cooling, namely refrigerants. The latter, capable of operation between -100 °C and +150 °C, are dealt with first. Heat transfer media in the more literal sense cover the range between -50 °C and +400 °C. For working temperatures between +142 °C and +620 °C some high-temperature salt (HTS) or other is required. In Figure 1 the respective ranges of application in terms of temperature are shown below.

Figure 1 Application ranges of heat transfer media for cooling or heating

A heat transfer medium may be present in the solid, liquid, and/or vapor phase, can be used to store heat in a reversible form; and can be circulated within the installation. With multiphase substances, such as mixtures of ice and brine or vapor and liquid, a change of phase wall occur during heat exchange with the surroundings, considerable amounts of enthalpy being exchanged with these surroundings at a temperature held constant.

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