Chapter 12 Radiation Heat Transfer 12-41 A circular grill is considered. The bottom of the grill is covered with hot coal bricks, while the wire mesh on top of the grill is covered with steaks. The in
Chapter 15 Cooling of Electronic Equipment Air Cooling: Natural Convection and Radiation 15-71C As the student watches the movie, the temperature of the electronic components in the VCR will keep incr
Chapter 15 Cooling of Electronic Equipment
Chapter 15 COOLING OF ELECTRONIC EQUIPMENT
Introduction and History 15-1C The invention of vacuum diode started the electronic age. The invention of the tran
Chapter 15 Cooling of Electronic Equipment 15-140 A multilayer circuit board consisting of four layers of copper and three layers of glass-epoxy sandwiched together is considered. The magnitude and lo
Chapter 14 Mass Transfer 14-134 A circular pan filled with water is cooled naturally. The rate of evaporation of water, the rate of heat transfer by natural convection, and the rate of heat supply to
Preface
This manual is prepared as an aide to the instructors in correcting homework assignments, but it can also be used as a source of additional example problems for use in the classroom. With this
Chapter 14 Mass Transfer 14-119 A person is standing outdoors in windy weather. The rates of heat loss from the head by radiation, forced convection, and evaporation are to be determined for the cases
Chapter 2 Heat Conduction Equation
Variable Thermal Conductivity
2-94C During steady one-dimensional heat conduction in a plane wall, long cylinder, and sphere with
constant thermal conductivity and n
Chapter 2 Heat Conduction Equation
2-126 A spherical liquid nitrogen container is subjected to specified temperature on the inner surface
and convection on the outer surface. The mathematical formulat
Chapter 2 Heat Conduction Equation
Solution of Steady One-Dimensional Heat Conduction Problems
2-52C Yes, this claim is reasonable since in the absence of any heat generation the rate of heat transfer
Chapter 15 Cooling of Electronic Equipment
Air Cooling: Forced Convection 15-94C Radiation heat transfer in forced air cooled systems is usually disregarded with no significant error since the forced
Chapter 3 Steady Heat Conduction
Chapter 3
STEADY HEAT CONDUCTION
Steady Heat Conduction In Plane Walls
3-1C (a) If the lateral surfaces of the rod are insulated, the heat transfer surface area of the
Chapter 15 Cooling of Electronic Equipment 15-55 A plastic DIP with 16 leads is cooled by forced air. Using data supplied by the manufacturer, the junction temperature is to be determined. Assumptions
Chap 13 Heat Exchangers
Review Problems 13-111 Hot oil is cooled by water in a multi-pass shell-and-tube heat exchanger. The overall heat transfer coefficient based on the inner surface is to be deter
Chapter 12 Radiation Heat Transfer
Review Problems 12-88 The temperature of air in a duct is measured by a thermocouple. The radiation effect on the temperature measurement is to be quantified, and th
Chapter 12 Radiation Heat Transfer
Chapter 12 RADIATION HEAT TRANSFER
View Factors 12-1C The view factor Fi j represents the fraction of the radiation leaving surface i that strikes surface j directly
Chap 13 Heat Exchangers 13-95 Cold water is heated by hot water in a heat exchanger. The net rate of heat transfer and the heat transfer surface area of the heat exchanger are to be determined. Assump
Chap 13 Heat Exchangers
The Effectiveness-NTU Method 13-68C When the heat transfer surface area A of the heat exchanger is known, but the outlet temperatures are not, the effectiveness-NTU method is d
Chap 15 Heat Exchangers 13-54 Glycerin is heated by ethylene glycol in a thin-walled double-pipe parallel-flow heat exchanger. The rate of heat transfer, the outlet temperature of the glycerin, and th
Chap 13 Heat Exchangers
Chapter 13 HEAT EXCHANGERS
Types of Heat Exchangers 13-1C Heat exchangers are classified according to the flow type as parallel flow, counter flow, and crossflow arrangement. I
Chap 15 Heat Exchangers
The Log Mean Temperature Difference Method 13-32C Tlm is called the log mean temperature difference, and is expressed as Tlm = where T1 = Th,in - Tc ,in T = Th ,in - Tc,out T2
Chapter 14 Mass Transfer
Diffusion in a Moving Medium 14-74C The mass-average velocity of a medium at some location is the average velocity of the mass at that location relative to an external referen
Chapter 14 Mass Transfer
Chapter 14 MASS TRANSFER
Mass Transfer and Analogy Between Heat and Mass Transfer 14-1C Bulk fluid flow refers to the transportation of a fluid on a macroscopic level from one
Chapter 14 Mass Transfer 14-107 A raindrop is falling freely in atmospheric air. The terminal velocity of the raindrop at which the drag force equals the weight of the drop and the average mass transf
Chapter 14 Mass Transfer
Steady Mass Diffusion Through a Wall 14-42C The relations for steady one-dimensional heat conduction and mass diffusion through a plane wall are expressed as follows: Heat con
Chapter 2 Heat Conduction Equation
2-68 A compressed air pipe is subjected to uniform heat flux on the outer surface and convection on the
inner surface. The mathematical formulation, the variation of
Chapter 2 Heat Conduction Equation
Chapter 2
HEAT CONDUCTION EQUATION
Introduction
2-1C Heat transfer is a vector quantity since it has direction as well as magnitude. Therefore, we must
specify both
Chapter 7 External Forced Convection
7-39 A steam pipe is exposed to windy air. The rate of heat loss from the steam is to be determined.
Assumptions 1 Steady operating conditions exist. 2 Radiation e
Chapter 7 External Forced Convection
7-52 A steam pipe is exposed to a light winds in the atmosphere. The amount of heat loss from the steam during a certain period and
the money the facility will sav
Chapter 7 External Forced Convection
7-63
Chapter 7 External Forced Convection
Review Problems
7-90 Wind is blowing parallel to the walls of a house. The rate of heat loss from the wall is to be deter
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2. A 40~ ~mm long, 2 :mm diameter pin n is fabricated of an aluminum alloy (16 :140 W/m2- -K).
(A) (10) Determine the n heat rate for Tb=50 C Tip-:25 C h
ME 314 Fall 05
Quiz 1 Solutions ( 10 pts.)
Thursday, September 13, 2005
Duration: 15 mins.
1. Chapter 2 (2.5 pts.)
The1-D steady state head conduction with uniform energy generation in cylindrical
coo
ME 314: Heat & Mass Transfer Lab
Experimental Full Report
(Please name your file as specified in the lab policy document)
Semester and Year:
Name of Team Leader:
Team
Number :
Experiment Number:
Names
SIXTH
EDITION
Fundamentals of
Heat and Mass Transfer
Supplemental Material
Incropera / DeWitt / Bergman / Lavine
Contents
CHAPTER 4
Two-Dimensional, Steady-State Conduction
4S.1 The Graphical Method
4