Navigation by alphabet
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
Taborek, J, xlv-lvi
Taitel and Dukler flow regime map, for horizontal and inclined gas- liquid flows,
Tamura et al correlation, for surface tension of mixtures,
Taylor Forge method, for mechanical design of flanges, comparison with EN13445 method,
Taylor series expansion,
Teflon, use in heat transfer enhancement:
TEMA (Tubular Exchanger Manufacturers Association):
Temperature distribution:
Tenders for heat exchangers,
Terminal free fall velocity, in fluidization,
Testing and inspection of heat exchangers:
Tetrabromomethane:
1,1,2,2-Tetrachloroethane:
Tetrachloroethylene:
Tetradecane:
Tetradecene:
Tetrachlorodifluoroethane (Refrigerant 112):
1,1,1,2-Tetrafluoroethane (Refrigerant R134a):
Tetrafluoromethane (Refrigerant 14):
Tetrahydrofuran:
1,2,3,4-Tetramethylbenzene:
1,2,3,5-Tetramethylbenzene:
1,2,4,5-Tetramethylbenzene:
Thermal conductivity:
Thermal contact conductance (TCC),
Thermal contact resistance (TCR),
Thermal design, constructional features affecting, in shell-and-tube heat exchangers
Thermal diffusivity:
Thermal expansion coefficient:
Thermal leakage in F-type shell-and-tube heat exchangers,
Thermal mixing in plate heat exchangers,
Thermal stress:
Thermocal, heat transfer media,
Thermodynamic cycles in refrigeration,
Thermodynamic properties:
Thermodynamic surface in radiative heat transfer,
Thermoexel surface, for enhancement of boiling,
Thermofluids, heat transfer medium,
Thermosiphon
Theta-NTU method:
Thickness of boundary layers (displacement, momentum, energy, density, temperature),
Thin-wall-type expansion bellows,
Thiophene:
Thome, J R
Three-phase flows:
Tie rods in shell-and-tube heat exchangers,
Tinker method for shell-side heat transfer in shell-and-tube heat exchangers,
Titanium and titanium alloys,
T-junctions, loss coefficients in,
Tolerances
Toluene:
m-Toluidine:
Tong F-factor method, for critical heat flux with nonuniform heating,
Tooth, A S,
Total emissivity in gases,
Transcendental equations in transient conduction,
Transient behavior:
Transition boiling:
Transition flow, heat transfer in free convective flow over vertical surfaces in,
Transitional flow, in combined free and forced convection,
Transmission of thermal radiation in solids:
Transmissivity of solids:
Transport properties:
Transverse flow, combined free and forced convection in,
Treated surfaces, for augmentation of heat transfer,
Triangular duct:
Triangular fins, in plate fin exchangers,
Triangular relationship, in annular gas-liquid flow,
Tribromomethane:
1,1,1-Trichloroethane (Refrigerant 140a):
Trichloroethylene:
Trichlorofluoromethane (Refrigerant 11)
Trichloromethane (Chloroform) (Refrigerant 20):
1,1,2-Trichlorotrifluoroethane (Refrigerant 113):
Tridecane:
Tridecene:
Triethylamine:
1,1,1-Trifluoroethane (Refrigerant 143a):
Trifluoromethane (Refrigerant 23):
Trimethylamine:
1,2,3-Trimethylbenzene:
1,2,4-Trimethylbenzene:
1,3,5-Trimethylbenzene:
2,2,4-Trimethylpentane (Isooctane):
Triphenylmethane:
Triple interface (gas/solid/liquid),
True temperature difference, in double pipe exchangers,
Truelove, J S,
Tsotsas, E
Tube-baffle damage, in heat exchangers,
Tube banks, finned:
Tube banks, plain:
Tube banks, roughened tubes, effect of roughness on Euler number in,
Tube bundles:
Tube counts, in shell-and-tube heat exchangers:
Tube end attachment, in shell-and-tube heat exchangers,
Tube inserts, heat exchangers with,
Tube-in-plate extended surface configurations, fin efficiency of,
Tube plates, in shell-and-tube heat exchangers:
Tube rupture in shell-and-tube heat exchangers,
Tube-to-tubesheet attachment, in shell-and-tube heat exchangers,
Tubes:
Tucker, R J,
Tunnel dryer,
Turbine exhaust condensers:
Turbines, lost work in
Turbulence:
Turbulent boundary layers:
Turbulent buffeting, as source of tube vibration,
Turbulent energy, integral equation for,
Turbulent flow:
Turnarounds, in heat exchangers,
Turner, C W,
Twisted tapes:
Twisted tube heat exchangers,
Twisted tubes
Two-equation models, for turbulent boundary layers,
Two-phase loop with capillary pump,
Two-phase flows:
Index
HEDH
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
Taborek, J, xlv-lvi
Taitel and Dukler flow regime map, for horizontal and inclined gas- liquid flows,
Tamura et al correlation, for surface tension of mixtures,
Taylor Forge method, for mechanical design of flanges, comparison with EN13445 method,
Taylor series expansion,
Teflon, use in heat transfer enhancement:
TEMA (Tubular Exchanger Manufacturers Association):
Temperature distribution:
Tenders for heat exchangers,
Terminal free fall velocity, in fluidization,
Testing and inspection of heat exchangers:
Tetrabromomethane:
1,1,2,2-Tetrachloroethane:
Tetrachloroethylene:
Tetradecane:
Tetradecene:
Tetrachlorodifluoroethane (Refrigerant 112):
1,1,1,2-Tetrafluoroethane (Refrigerant R134a):
Tetrafluoromethane (Refrigerant 14):
Tetrahydrofuran:
1,2,3,4-Tetramethylbenzene:
1,2,3,5-Tetramethylbenzene:
1,2,4,5-Tetramethylbenzene:
Thermal conductivity:
Thermal contact conductance (TCC),
Thermal contact resistance (TCR),
Thermal design, constructional features affecting, in shell-and-tube heat exchangers
Thermal diffusivity:
Thermal expansion coefficient:
Thermal leakage in F-type shell-and-tube heat exchangers,
Thermal mixing in plate heat exchangers,
Thermal stress:
Thermocal, heat transfer media,
Thermodynamic cycles in refrigeration,
Thermodynamic properties:
Thermodynamic surface in radiative heat transfer,
Thermoexel surface, for enhancement of boiling,
Thermofluids, heat transfer medium,
Thermosiphon
Theta-NTU method:
Thickness of boundary layers (displacement, momentum, energy, density, temperature),
Thin-wall-type expansion bellows,
Thiophene:
Thome, J R
Three-phase flows:
Tie rods in shell-and-tube heat exchangers,
Tinker method for shell-side heat transfer in shell-and-tube heat exchangers,
Titanium and titanium alloys,
T-junctions, loss coefficients in,
Tolerances
Toluene:
m-Toluidine:
Tong F-factor method, for critical heat flux with nonuniform heating,
Tooth, A S,
Total emissivity in gases,
Transcendental equations in transient conduction,
Transient behavior:
Transition boiling:
Transition flow, heat transfer in free convective flow over vertical surfaces in,
Transitional flow, in combined free and forced convection,
Transmission of thermal radiation in solids:
Transmissivity of solids:
Transport properties:
Transverse flow, combined free and forced convection in,
Treated surfaces, for augmentation of heat transfer,
Triangular duct:
Triangular fins, in plate fin exchangers,
Triangular relationship, in annular gas-liquid flow,
Tribromomethane:
1,1,1-Trichloroethane (Refrigerant 140a):
Trichloroethylene:
Trichlorofluoromethane (Refrigerant 11)
Trichloromethane (Chloroform) (Refrigerant 20):
1,1,2-Trichlorotrifluoroethane (Refrigerant 113):
Tridecane:
Tridecene:
Triethylamine:
1,1,1-Trifluoroethane (Refrigerant 143a):
Trifluoromethane (Refrigerant 23):
Trimethylamine:
1,2,3-Trimethylbenzene:
1,2,4-Trimethylbenzene:
1,3,5-Trimethylbenzene:
2,2,4-Trimethylpentane (Isooctane):
Triphenylmethane:
Triple interface (gas/solid/liquid),
True temperature difference, in double pipe exchangers,
Truelove, J S,
Tsotsas, E
Tube-baffle damage, in heat exchangers,
Tube banks, finned:
Tube banks, plain:
Tube banks, roughened tubes, effect of roughness on Euler number in,
Tube bundles:
Tube counts, in shell-and-tube heat exchangers:
Tube end attachment, in shell-and-tube heat exchangers,
Tube inserts, heat exchangers with,
Tube-in-plate extended surface configurations, fin efficiency of,
Tube plates, in shell-and-tube heat exchangers:
Tube rupture in shell-and-tube heat exchangers,
Tube-to-tubesheet attachment, in shell-and-tube heat exchangers,
Tubes:
Tucker, R J,
Tunnel dryer,
Turbine exhaust condensers:
Turbines, lost work in
Turbulence:
Turbulent boundary layers:
Turbulent buffeting, as source of tube vibration,
Turbulent energy, integral equation for,
Turbulent flow:
Turnarounds, in heat exchangers,
Turner, C W,
Twisted tapes:
Twisted tube heat exchangers,
Twisted tubes
Two-equation models, for turbulent boundary layers,
Two-phase loop with capillary pump,
Two-phase flows:
U
V
W
X
Y
Z
Download the citation in the EndNote formatOpen in a new tab.
Download the citation in the RefWorks formatOpen in a new tab.
Download the citation in the BibTex formatOpen in a new tab.
Unsteady operation
DOI 10.1615/hedhme.a.000093
1.1 DESCRIPTION OF HEAT EXCHANGER TYPES
1.1.6 Unsteady Operation
D. Brian Spalding
A. TRANSIENT BEHAVIOR OF STEADY STATE HEAT EXCHANGERS
Although not emphasized, it has been implied above, and is true, that all the heat exchangers mentioned in Section 92 are designed for steady state operation. However, every heat exchanger operation must have a beginning and an end, and the requirements of industrial use necessitate changes from one steady state to another. Each such change occupies a finite amount of time, and it may be that the sum of the transitional periods forms an appreciable fraction of the whole time of operation of the heat exchanger.
This is one reason why the quantitative study of the unsteady behavior of heat exchangers is often desirable, for performance predicted solely on the basis of a succession of steady states may be considerably at variance with reality.
There is another reason: sometimes the start-up and shut-down performance of a heat exchanger has implications for the safety of a plant, especially when the transient is unexpected, resulting perhaps from a power failure. Thus, thermal stresses may result from rapid changes of temperature and water hammer effects, associated with the sudden stopping of slugs of liquid, can cause fractures of pipes and fittings.
B. PERIODICALLY OPERATING HEAT EXCHANGERS (REGENERATORS)
... You need a subscriptionOpen in a new tab. to view the full text of the article. If you already have the subscription, please login here
© 2024 by Begell House, Inc.