Chapter 10 Boiling and Condensation
Condensation Heat Transfer
10-34C Condensation is a vapor-to-liquid phase change process. It occurs when the temperature of a
vapor is reduced below its saturation temperature Tsat . This is usually done by bringing the
Chapter 10 Boiling and Condensation
Review Problems
10-72 Steam at a saturation temperature of Tsat = 40 C condenses on the outside of a thin horizontal tube.
Heat is transferred to the cooling water that enters the tube at 25 C and exits at 35 C. The rat
Chapter 10 Boiling and Condensation
10-21 Water is boiled at 1 atm pressure and thus at a saturation (or boiling) temperature of Tsat = 100 C
by a horizontal nickel plated copper heating element. The maximum (critical) heat flux and the
temperature jump o
Chapter 9 Natural Convection
9-103E The components of an electronic device located in a horizontal duct of rectangular cross section
is cooled by forced air. The heat transfer from the outer surfaces of the duct by natural convection and
the average tempe
Chapter 10 Boiling and Condensation
Chapter 10
BOILING AND CONDENSATION
Boiling Heat Transfer
10-1C Boiling is the liquid-to-vapor phase change process that occurs at a solid-liquid interface when
the surface is heated above the saturation temperature of
Chapter 5 Numerical Methods in Heat Conduction
Chapter 5
NUMERICAL METHODS IN HEAT CONDUCTION
Why Numerical Methods
5-1C Analytical solution methods are limited to highly simplified problems in simple geometries . The
geometry must be such that its entire
Chapter 4 Transient Heat Conduction
4-118 Internal combustion engine valves are quenched in a large oil bath. The time it takes for the valve
temperature to drop to specified temperatures and the maximum heat transfer are to be determined.
Assumptions 1 T
Chapter 4 Transient Heat Conduction
Review Problems
4-105 Two large steel plates are stuck together because of the freezing of the water between the two
plates. Hot air is blown over the exposed surface of the plate on the top to melt the ice. The length
Chapter 4 Transient Heat Conduction
4-47 A hot dog is dropped into boiling water, and temperature measurements are taken at certain time
intervals. The thermal diffusivity and thermal conductivity of the hot dog and the convection heat
transfer coefficien
Chapter 4 Transient Heat Conduction
4-81 A cubic block and a cylindrical block are exposed to hot gases on all of their surfaces. The center
temperatures of each geometry in 10, 20, and 60 min are to be determined.
Assumptions 1 Heat conduction in the cub
Chapter 3 Steady Heat Conduction
3-164 A circuit board houses electronic components on one side, dissipating a total of 15 W through the
backside of the board to the surrounding medium. The temperatures on the two sides of the circuit board
are to be dete
Chapter 4 Transient Heat Conduction
Transient Heat Conduction in Multidimensional Systems
4-69C The product solution enables us to determine the dimensionless temperature of two- or threedimensional heat transfer problems as the product of dimensionless t
Chapter 4 Transient Heat Conduction
Transient Heat Conduction in Large Plane Walls, Long Cylinders, and Spheres
4-26C A cylinder whose diameter is small relative to its length can be treated as an infinitely long
cylinder. When the diameter and length of
Chapter 4 Transient Heat Conduction
Chapter 4
TRANSIENT HEAT CONDUCTION
Lumped System Analysis
4-1C In heat transfer analysis, some bodies are observed to behave like a "lump" whose entire body
temperature remains essentially uniform at all times during a
Chapter 3 Steady Heat Conduction
Review Problems
3-152E Steam is produced in copper tubes by heat transferred from another fluid condensing outside the
tubes at a high temperature. The rate of heat transfer per foot length of the tube when a 0.01 in thick
cen58933_ch10.qxd
9/4/2002
12:37 PM
Page 515
CHAPTER
BOILING AND
C O N D E N S AT I O N
e know from thermodynamics that when the temperature of a liquid
at a specified pressure is raised to the saturation temperature Tsat at
that pressure, boiling occurs.
cen58933_ch12.qxd
9/9/2002
9:48 AM
Page 605
CHAPTER
R A D I AT I O N H E AT T R A N S F E R
n Chapter 11, we considered the fundamental aspects of radiation and the
radiation properties of surfaces. We are now in a position to consider
radiation exchange
cen58933_ch11.qxd
9/9/2002
9:38 AM
Page 561
CHAPTER
F U N D A M E N TA L S O F
T H E R M A L R A D I AT I O N
o far, we have considered the conduction and convection modes of heat
transfer, which are related to the nature of the materials involved and
the
cen58933_ch07.qxd
9/4/2002
12:12 PM
Page 367
CHAPTER
EXTERNAL FORCED
CONVECTION
n Chapter 6 we considered the general and theoretical aspects of forced
convection, with emphasis on differential formulation and analytical solutions. In this chapter we cons
cen58933_ch09.qxd
9/4/2002
12:25 PM
Page 459
CHAPTER
N AT U R A L C O N V E C T I O N
n Chapters 7 and 8, we considered heat transfer by forced convection,
where a fluid was forced to move over a surface or in a tube by external
means such as a pump or a
cen58933_ch08.qxd
9/4/2002
11:29 AM
Page 419
CHAPTER
INTERNAL FORCED
CONVECTION
iquid or gas flow through pipes or ducts is commonly used in heating and
cooling applications. The fluid in such applications is forced to flow by a
fan or pump through a tube
cen58933_ch05.qxd
9/4/2002
11:41 AM
Page 265
CHAPTER
NUMERICAL METHODS
I N H E AT C O N D U C T I O N
o far we have mostly considered relatively simple heat conduction problems involving simple geometries with simple boundary conditions because only such
cen58933_ch03.qxd
9/10/2002
8:58 AM
Page 127
CHAPTER
S T E A D Y H E AT C O N D U C T I O N
n heat transfer analysis, we are often interested in the rate of heat transfer
through a medium under steady conditions and surface temperatures. Such
problems can
cen58933_ch06.qxd
9/4/2002
12:05 PM
Page 333
CHAPTER
F U N D A M E N TA L S O F
CONVECTION
o far, we have considered conduction, which is the mechanism of heat
transfer through a solid or a quiescent fluid. We now consider convection, which is the mechani
cen58933_ch04.qxd
9/10/2002
9:12 AM
Page 209
CHAPTER
T R A N S I E N T H E AT
CONDUCTION
he temperature of a body, in general, varies with time as well
as position. In rectangular coordinates, this variation is expressed as
T(x, y, z, t), where (x, y, z)
cen58933_ch02.qxd
9/10/2002
8:46 AM
Page 61
CHAPTER
H E AT C O N D U C T I O N
E Q U AT I O N
eat transfer has direction as well as magnitude. The rate of heat conduction in a specified direction is proportional to the temperature gradient, which is the c
cen58933_ch01.qxd
9/10/2002
8:29 AM
Page 1
CHAPTER
B A S I C S O F H E AT T R A N S F E R
he science of thermodynamics deals with the amount of heat transfer as
a system undergoes a process from one equilibrium state to another, and
makes no reference to
cen58933_ch15.qxd
9/9/2002
10:20 AM
Page 785
CHAPTER
COOLING OF ELECTRONIC
EQUIPMENT
lectronic equipment has made its way into practically every aspect of
modern life, from toys and appliances to high-power computers. The reliability of the electronics of
cen98128_App-A_p865-892.qxd
1/8/10
3:29 PM
Page 865
APPENDIX
P R O P E R T Y TA B L E S A N D
CHARTS (SI UNITS)
1
TABLE A1
Molar mass, gas constant, and ideal-gas specific heats of
some substances 866
TABLE A2
Boiling and freezing point properties 867
TAB