A HEAT TRANSFER TEXTBOOK - THIRD EDITION Episode 1 Part 3 pptx
A HEAT TRANSFER TEXTBOOK - THIRD EDITION Episode 1 Part 3 pptx
... parallel, black, opaque plates transfer heat by
radiation, as shown in Fig. 1. 18. Find T
2
.
1. 15 Four infinite, parallel, black, opaque plates transfer heat by
radiation, as shown in Fig. 1. 19. ... electrical resistance heater,
releasing 10 00 W/m
2
. Calculate (a) the heater temperature, (b)
the heat transfer from the methanol to the heater, and (c) the
heat transfer f...
A HEAT TRANSFER TEXTBOOK - THIRD EDITION Episode 1 Part 1 pdf
... General Problem of Heat Exchange 1
1 Introduction 3
1. 1 Heat transfer 3
1. 2 Relation of heat transfer to thermodynamics 6
1. 3 Modes of heat transfer 10
1. 4 A look ahead 35
1. 5 Problems 35
Problems ... Lienhard
Phlogiston Press ISBN 0-9 7 13 83 5-0 -2
PSB 0 1- 0 4-0 249
A HEAT TRANSFER
TEXTBOOK
THIRD
EDITION
John H. Lienhard IV / John...
A HEAT TRANSFER TEXTBOOK - THIRD EDITION Episode 1 Part 4 potx
... the
two parallel resistances as follows:
1
R
t
equiv
=
1
R
t
rad
+
1
R
t
conv
= Ah
rad
+Ah = A
h
rad
+h
Thus,
R
equiv
=
1
A
h
rad
+h
A calculation shows A = 13 3 mm
2
= 1. 33 × 10
−4
m
2
for ... 2 .11 , we can write
R
total
=
L
kA
+
1
h
c
A
+
L
kA
=
1
A
L
18
+
1
h
c
+
L
18
Since h
c
is about 3, 000 W/m
2
K,
2L
18
must be
1
30 00
= 0.00...
A HEAT TRANSFER TEXTBOOK - THIRD EDITION Episode 1 Part 5 doc
... with, we take U to be a constant value. This is fairly reasonable
in compact single-phase heat exchangers. In larger exchangers, particu-
larly in shell-and-tube configurations and large condensers, ... a tube bundle. The plate-and-fin configura-
tion (Fig. 3. 6b) is such a cross-flow heat exchanger.
In all of these heat exchanger arrangements, it becomes clear that a
dramatic inve...
A HEAT TRANSFER TEXTBOOK - THIRD EDITION Episode 1 Part 6 ppt
... (Data provided by A. D. Krauss.)
12 4
Problems 13 1
3 . 13 Air at 2 kg/s and 27
◦
C and a stream of water at 1. 5 kg/s and
60
◦
C each enter a heat exchanger. Evaluate the exit tempera-
tures if A =12 m
2
, ... multipass shell-
and-tube heat exchangers and one-pass cross-flow exchangers.
11 9
a. F for a one-shell-pass, four, six-, tube-pass exchanger.
b. F for a two-shell...
A HEAT TRANSFER TEXTBOOK - THIRD EDITION Episode 1 Part 7 pot
... might just as well have been ap-
proximated as a parabola. But as small as the difference between a
parabola and a sine function might be, the latter b.c. was far easier
to accommodate.
• The twin ... pi-
theorem. We illustrate this idea with a fairly complex example.
14 8 Analysis of heat conduction and some steady one-dimensional problems §4.2
Figure 4 .3 A two-dimensional slab...
A HEAT TRANSFER TEXTBOOK - THIRD EDITION Episode 1 Part 8 pps
... resistor
surface found in Example 2.8. The equivalent thermal resistance is
now
R
t
equiv
=
1
R
t
fin
+
1
R
t
fin
+
1
R
t
rad
+
1
R
t
conv
1
=
2
2, 15 0
+ (1. 33 × 10
−4
)(7 .17 ) + (1. 33 10
−4
) ( 13 )
1
= ... =
I
o
2
hLx/kδ
I
o
2
hL
2
/kδ
(4.62)
Problems 18 3
Problems
4 .1 Make a table listing the general solutions of all steady, unidi-
mensional c...
A HEAT TRANSFER TEXTBOOK - THIRD EDITION Episode 1 Part 9 ppt
... our attention, first, to an analysis of unsteady heat
transfer, beginning with a more detailed consideration of the lumped-
capacity system that we looked at in Section 1. 3.
5.2 Lumped-capacity ... briefly at the dimensional analysis of transient con-
duction in general and of lumped-capacity systems in particular.
Dimensional analysis of transient heat conduction
We first consider a...
A HEAT TRANSFER TEXTBOOK - THIRD EDITION Episode 1 Part 10 pdf
... 1. 2 732 0.9855
1. 10 0.89 035 1. 1270 0.9 839 1. 30 2 51 1.2 232 0.9 815 1. 6 31 9 9 1. 2970 0.9828
1. 20 0. 917 85 1. 134 4 0.9 817 1. 34 558 1. 238 7 0.9787 1. 68868 1. 32 01 0.9800
1. 30 0.94 31 6 1. 1 412 0.9794 1. 38 5 43 1. 2 533 ... 0.7 910 3 1. 1 016 0.99 03 1. 14897 1. 1724 0.98 93 1. 432 03 1. 2 236 0.9904
0.90 0.82740 1. 110 7 0.9882 1. 20484 1...
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