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
Nahme-Griffith number,
Nakashima, CY
Nanoparticles, for heat transfer augmentation,
Naphthalene:
Napthenes:
National practice, in mechanical design, guide to,
Natural convection:
Natural draft cooling towers:
Natural frequency of tube vibration in heat exchangers,
Navier-Stokes equation,
Neon:
Neopentane:
Net free area, in double-pipe heat exchangers,
Netherlands, guide to national mechanical design practice,
Networks, of heat exchangers, pinch analysis method for design of,
Neumann boundary conditions, finite difference method,
Nickel, thermal and mechanical properties
Nickel alloys,
Nickel steels,
Niessen, R,
Nitric oxide:
Nitriles:
Nitrobenzene:
Nitro derivatives:
Nitroethane:
Nitrogen:
Nitrogen dioxide:
Nitrogen peroxide:
Nitromethane:
m-Nitrotoluene:
Nitrous oxide
Noise:
Nonadecane:
Nonadecene:
Nonane:
Nonene:
Nonanol:
Nonaqueous fluids, critical heat flux in,
Non-circular microchannels:
Noncondensables:
Nondestructive testing, of heat exchangers
Nongray media, interaction phenomena with,
Nonmetallic materials:
Non-Newtonian flow:
Nonparticipating media, radiation interaction in,
Nonuniform heat flux, critical heat flux with,
Non-wetting surfaces, in condensation augmentation,
North, C,
No-tubes-in-window shells, calculation of heat transfer and pressure drop in,
Nozzles:
Nowell, D G,
Nucleate boiling:
Nuclear industry, fouling problems in,
Nucleation:
Nucleation sites:
Nuclei, formation in supersaturated vapor,
Number of transfer units (NTU):
Numerical methods:
Nusselt:
Nusselt-Graetz problem, in laminar heat transfer in ducts,
Nusselt number:
in combined and free and forced convection: around immersed bodies,
definition,
in free convection over immersed bodies,
in laminar flow in ducts:
in liquid metal flow,
in non-Newtonian flows,
in particle to fluid heat transfer in fixed beds,
in plate heat exchangers,
in single-phase flow over immersed bodies,
in systems with heat transfer augmentation,
in turbulent flow in ducts:
Index
HEDH
A
B
C
D
E
F
G
H
I
J
K
L
M
N
Nahme-Griffith number,
Nakashima, CY
Nanoparticles, for heat transfer augmentation,
Naphthalene:
Napthenes:
National practice, in mechanical design, guide to,
Natural convection:
Natural draft cooling towers:
Natural frequency of tube vibration in heat exchangers,
Navier-Stokes equation,
Neon:
Neopentane:
Net free area, in double-pipe heat exchangers,
Netherlands, guide to national mechanical design practice,
Networks, of heat exchangers, pinch analysis method for design of,
Neumann boundary conditions, finite difference method,
Nickel, thermal and mechanical properties
Nickel alloys,
Nickel steels,
Niessen, R,
Nitric oxide:
Nitriles:
Nitrobenzene:
Nitro derivatives:
Nitroethane:
Nitrogen:
Nitrogen dioxide:
Nitrogen peroxide:
Nitromethane:
m-Nitrotoluene:
Nitrous oxide
Noise:
Nonadecane:
Nonadecene:
Nonane:
Nonene:
Nonanol:
Nonaqueous fluids, critical heat flux in,
Non-circular microchannels:
Noncondensables:
Nondestructive testing, of heat exchangers
Nongray media, interaction phenomena with,
Nonmetallic materials:
Non-Newtonian flow:
Nonparticipating media, radiation interaction in,
Nonuniform heat flux, critical heat flux with,
Non-wetting surfaces, in condensation augmentation,
North, C,
No-tubes-in-window shells, calculation of heat transfer and pressure drop in,
Nozzles:
Nowell, D G,
Nucleate boiling:
Nuclear industry, fouling problems in,
Nucleation:
Nucleation sites:
Nuclei, formation in supersaturated vapor,
Number of transfer units (NTU):
Numerical methods:
Nusselt:
Nusselt-Graetz problem, in laminar heat transfer in ducts,
Nusselt number:
O
P
Q
R
S
T
U
V
W
X
Y
Z
in combined and free and forced convection: around immersed bodies,
definition,
in free convection over immersed bodies,
in laminar flow in ducts:
in liquid metal flow,
in non-Newtonian flows,
in particle to fluid heat transfer in fixed beds,
in plate heat exchangers,
in single-phase flow over immersed bodies,
in systems with heat transfer augmentation,
in turbulent flow in ducts:
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Heat Transfer in Liquid Metals
DOI 10.1615/hedhme.a.000180
2.5.13 Heat Transfer in Liquid Metals
E. V. Firsova and M. E. Lebedev
Liquid metals differ from gases and other liquids in that their thermal diffusivity is considerably greater than their kinematic viscosity, that is, Pr << 1. Molecular heat transfer in laminar or turbulent flow of a liquid metal plays a significant part in both the boundary layer and turbulent core. The Nusselt number is a function of the Peclet number, Nu = f(Pe), where Pe is the Peclet number. Pe is the product of the Reynolds number and the Prandtl number (thus, Pe = Re Pr = u ℓ /κ where u is the fluid velocity, ℓ the characteristic length and κ the thermal diffusivity).
A. Flow in channels
(a) Tubes
The heat transfer between the wall of a duct and a fluid moving relative to the wall can be calculated at any position along the duct using a local heat transfer coefficient defined as
\[\label{eq1} \alpha_{x} = \frac{\dot{q}}{(T_w-T_b)_x} \tag{1}\]
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