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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
E-type shells in shell-and-tube heat exchangers:
Ebert and Panchal equation, for crude oil fouling,
Eckert number,
Eddy viscosity:
Eddy diffusivity, of heat,
Edge, D,
Edwards, D K
EEC code for thermal design of heat exchangers,
Effective diffusivity,
Effective thermal conductivity of fixed beds,
Effective tube length in shell-and-tube heat exchangers,
Effectiveness of a heat exchanger:
Efficiency of fins,
Eicosane:
Eicosene:
Ejectors, in flash distillation plant,
EJMA (Expansion Joint Manufacturers Association), standards for expansion bellows
Elastic properties of solids:
El-Dessouky, H,
Electrical enhancement processes, in heat transfer augmentation,
Electric fields, effect on properties of rheologically complex materials,
Electric fields, in augmentation of condensation,
Electrical process heater, specification of,
Electrokinetics, for heat transfer augmentation in microfluidic systems,
Electromagnetic theory of radiation,
Electrostatic fields in augmentation of heat transfer,
Elements:
Elhadidy relation between heat and momentum transfer,
Embedding methods for radiative heat transfer in nonisothermal gases,
Embittlement, of stainless steels,
Emission of thermal radiation, in solids,
Emissivity:
Emitting media, interaction phenomena with,
Emulsions, viscosity of,
EN13445 (European Pressure Vessel Codes), design of heat exchangers to,
Enclosures:
Energy equation:
Energy recovery, maximum, in heat exchanger network design,
Enhanced surfaces, fouling in,
Enhancement devices:
Enlargements in pipes:
Enthalpy:
Entrainment in annular gas-liquid flow
Entrance effects in heat and mass transfer:
Entrance lengths, hydrodynamic in pipe flow,
Entrance losses for tube inlet in shell-and-tube heat exchanger,
Entry losses in plate heat exchangers,
Entropy generation and minimisation
Environmental impact, of fouling,
Eotvos number:
Epstein, N,
Epstein matrix, for fouling,
Equalizing rings, for expansion bellows,
Equilibrium interphase:
Equilibrium vapor nucleus,
Equivalent sand roughness,
Ergun equation, for pressure drop in fixed beds
ESDU correlations:
Esters:
Ethane:
Ethanol:
Ethers:
Ethyl acetate:
Ethylacetylene:
Ethylacrylate:
Ethylamine:
Ethylbenzene:
Ethyl benzoate:
Ethyl butanoate:
Ethylcyclohexane:
Ethylcyclopentane:
Ethyl formate:
Ethylene:
Ethylene diamine:
Ethylene glycol:
Ethylene oxide:
Ethylmercaptan:
1-Ethylnaphthalene:
2-Ethylnaphthalene:
Ethyl proprionate:
Ethyl propylether:
Ettouney, H,
Euler number:
Eutectic mixtures, condensation of forming immiscible liquids,
Evaporation:
Evaporative crystallisers,
Evaporators:
Exergy, definition of,
Exergy analysis,
Exit losses for tubes in shell-and-tube exchanger,
Expansion bellows, for shell-and-tube heat exchangers:
EJMA (Expansion Joint Manufacturers Association), standards for
Expansion joints, mechanical design of:
Expansion of tubes into tube sheets:
Expansion turbine, lost work in,
Explosively clad plate,
Explosive welding of tubes into tube sheets
Explosive expansion joints,
Extended surfaces (see also Fins)
Externally induced convection, in kettle reboilers,
Extinction coefficient,
Extinction efficiency,
Eyring fluid (non-Newtonian),
Index
HEDH
A
B
C
D
E
E-type shells in shell-and-tube heat exchangers:
Ebert and Panchal equation, for crude oil fouling,
Eckert number,
Eddy viscosity:
Eddy diffusivity, of heat,
Edge, D,
Edwards, D K
EEC code for thermal design of heat exchangers,
Effective diffusivity,
Effective thermal conductivity of fixed beds,
Effective tube length in shell-and-tube heat exchangers,
Effectiveness of a heat exchanger:
Efficiency of fins,
Eicosane:
Eicosene:
Ejectors, in flash distillation plant,
EJMA (Expansion Joint Manufacturers Association), standards for expansion bellows
Elastic properties of solids:
El-Dessouky, H,
Electrical enhancement processes, in heat transfer augmentation,
Electric fields, effect on properties of rheologically complex materials,
Electric fields, in augmentation of condensation,
Electrical process heater, specification of,
Electrokinetics, for heat transfer augmentation in microfluidic systems,
Electromagnetic theory of radiation,
Electrostatic fields in augmentation of heat transfer,
Elements:
Elhadidy relation between heat and momentum transfer,
Embedding methods for radiative heat transfer in nonisothermal gases,
Embittlement, of stainless steels,
Emission of thermal radiation, in solids,
Emissivity:
Emitting media, interaction phenomena with,
Emulsions, viscosity of,
EN13445 (European Pressure Vessel Codes), design of heat exchangers to,
Enclosures:
Energy equation:
Energy recovery, maximum, in heat exchanger network design,
Enhanced surfaces, fouling in,
Enhancement devices:
Enlargements in pipes:
Enthalpy:
Entrainment in annular gas-liquid flow
Entrance effects in heat and mass transfer:
Entrance lengths, hydrodynamic in pipe flow,
Entrance losses for tube inlet in shell-and-tube heat exchanger,
Entry losses in plate heat exchangers,
Entropy generation and minimisation
Environmental impact, of fouling,
Eotvos number:
Epstein, N,
Epstein matrix, for fouling,
Equalizing rings, for expansion bellows,
Equilibrium interphase:
Equilibrium vapor nucleus,
Equivalent sand roughness,
Ergun equation, for pressure drop in fixed beds
ESDU correlations:
Esters:
Ethane:
Ethanol:
Ethers:
Ethyl acetate:
Ethylacetylene:
Ethylacrylate:
Ethylamine:
Ethylbenzene:
Ethyl benzoate:
Ethyl butanoate:
Ethylcyclohexane:
Ethylcyclopentane:
Ethyl formate:
Ethylene:
Ethylene diamine:
Ethylene glycol:
Ethylene oxide:
Ethylmercaptan:
1-Ethylnaphthalene:
2-Ethylnaphthalene:
Ethyl proprionate:
Ethyl propylether:
Ettouney, H,
Euler number:
Eutectic mixtures, condensation of forming immiscible liquids,
Evaporation:
Evaporative crystallisers,
Evaporators:
Exergy, definition of,
Exergy analysis,
Exit losses for tubes in shell-and-tube exchanger,
Expansion bellows, for shell-and-tube heat exchangers:
EJMA (Expansion Joint Manufacturers Association), standards for
Expansion joints, mechanical design of:
Expansion of tubes into tube sheets:
Expansion turbine, lost work in,
Explosively clad plate,
Explosive welding of tubes into tube sheets
Explosive expansion joints,
Extended surfaces (see also Fins)
Externally induced convection, in kettle reboilers,
Extinction coefficient,
Extinction efficiency,
Eyring fluid (non-Newtonian),
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
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Transfer coefficient dependencies
DOI 10.1615/hedhme.a.000096
1.2 DEFINITIONS AND RELATIONSHIPS
1.2.3 Transfer Coefficient Dependences
D. Brian Spalding
A. INTRODUCTION
Whether in terms of α, β, or gφ, a major part of the analyst’s concern is with ascribing numerical values to the interaction coefficients. These depend on the properties of the fluid, on the velocity of flow over the surface, on the shape and size of the interface, and on other factors. What is derived is a formula, or set of formulas, of the kind
\[\label{eq123_1} \alpha =\alpha \mbox{fn}(\lambda, L, c_{p}, p, \rho, \eta, \Delta T,\ldots) \tag{1}\]
where α fn(...) represents “α as a function of...”, and the quantities in the bracket represent all those expected to influence the value of α, namely, the thermal conductivity, a linear dimension, the specific heat, the density, the velocity, the viscosity, the temperature difference, and so on.
Such formulas exist, although not yet in sufficient measure, and they are usually expressed, for compactness and for maximum generality, in terms of dimensionless quantities such as the Stanton or Reynolds numbers. Therefore, in order to facilitate the presentation of the formulas, the next few sections are devoted to introducing and discussing the more important of these quantities.
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