A HEAT TRANSFER TEXTBOOK - THIRD EDITION Episode 1 Part 10 pdf
A HEAT TRANSFER TEXTBOOK - THIRD EDITION Episode 1 Part 1 pdf
... 627
11 .6 Mass transfer at low rates 635
11 .7 Steady mass transfer with counterdiffusion 648
11 .8 Mass transfer coefficients at high rates of mass transfer . 654
11 .9 Simultaneous heat and mass transfer ... the right pass
x Contents
IV Thermal Radiation Heat Transfer 523
10 Radiative heat transfer 525
10 .1 The problem of radiative exchange 525
10 .2 Kirchhoff’s la...
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 4 potx
... with weather data to estimate heating and cooling loads [2.5].
78 Heat conduction, thermal resistance, and the overall heat transfer coecient Đ2 .4
transfer coecient h
e
= h + h
rad
= 18 .44 W/m
2
K. ... =
∆T
R
t
total
=
T
∞
1
−T
∞
r
1
hA
+
1
k
p
A
p
L
+
k
s
A
s
L
+
1
hA
and
U =
Q
A T
=
1
2
h
+
1
k
p
L
A
p
A
+
k
s
L
A
s
A
The approach illustrated in...
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, ... conguration. Figure 3 .5 shows the U-tubes of
a two-tube-pass, one-shell-pass exchanger being installed in the
99
Figure 3 .5 Typical commercial one-shell-pass, two-tube-pass
heat ex...
A HEAT TRANSFER TEXTBOOK - THIRD EDITION Episode 1 Part 6 ppt
... 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-pass, four or more tube-pass exchanger.
Figure ... (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. E...
A HEAT TRANSFER TEXTBOOK - THIRD EDITION Episode 1 Part 7 pot
... 0
(4.9)
16 0 Analysis of heat conduction and some steady one-dimensional problems §4.4
Figure 4.5 Heat conduction through a heat- generating slab
with asymmetric boundary conditions.
Example 4 .7
A slab ... gravitational forces. Fr is about 10 00 for a pitched baseball,
and it is between 1 and 10 for the water flowing over the spillway of
a dam.
4
One can always divide any...
A HEAT TRANSFER TEXTBOOK - THIRD EDITION Episode 1 Part 8 pps
... section.
18 2
17 8 Analysis of heat conduction and some steady one-dimensional problems §4.5
where
R
t
fin
=
1
kAhP tanh mL
for a straight fin (4. 58)
In general, for a fin of any shape, fin thermal resistance ... It
hasa2cmO.D. and a 1. 88 cm I.D. The material is type 304
stainless steel. Assume that the fluid is steam at 260
◦
C and
that the heat transfer coefficient betwe...
A HEAT TRANSFER TEXTBOOK - THIRD EDITION Episode 1 Part 9 ppt
... 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 fairly ... t/T can be viewed as
t
T
=
hk(V /A) t
ρc(V /A)
2
k
=
h(V /A)
k
·
αt
(V /A)
2
= Bi Fo (5.7)
Electrical and mechanical analogies to the
lumped-thermal-capacity problem
The term capacitance is...
A HEAT TRANSFER TEXTBOOK - THIRD EDITION Episode 1 Part 10 pdf
... 0.7 910 3 1. 1 016 0.9903 1. 14897 1. 1724 0.9893 1. 43203 1. 2236 0.9904
0.90 0.82740 1. 110 7 0.9882 1. 20484 1. 1902 0.9869 1. 50442 1. 2488 0.9880
1. 00 0.86033 1. 119 1 0.98 61 1.25578 1. 20 71 0.9843 1. 57080 1. 2732 ... 0.94077 1. 114 3 0.9954 1. 16556 1. 14 41 0.9960
0.60 0.70507 1. 0 814 0.9940 1. 018 44 1. 1345 0.9936 1. 26440 1. 1 713 0.9944
0.70 0.75056...
A HEAT TRANSFER TEXTBOOK - THIRD EDITION Episode 2 Part 1 doc
... [5.6]
13 . Isothermal ellipsoid of semimajor
axis b and semiminor axes a
conducts heat into an infinite
medium at T
∞
; b> ;a( see 4)
4πb
1 a
2
b
2
tanh
1
1 a
2
b
2
meter [5 .16 ]
24 6
26 2 ... 5 .1 0a
Φ
1
(
Fo
1
= 0.565, Bi
1
= 0 . 21 05
)
= 0 .10
Φ
2
(
Fo
2
= 0.565, Bi
2
= 0 . 21 05
)
= 0 .10
and, with eqn. (5.7 3a) ,
Φ = Φ
1
+Φ
2
(...
A HEAT TRANSFER TEXTBOOK - THIRD EDITION Episode 2 Part 9 pdf
... on
natural convection heat transfer from a horizontal plates. Int. J.
Heat Mass Transfer, 17(1):135–1 42, 197 4.
458 Heat transfer in boiling and other phase-change congurations 9. 1
Figure 9. 1 ... Natural convection heat transfer from a
plate with arbitrary inclination. Int. J. Heat Mass Transfer, 15(4):
755–767, 19 72.
[8.17] G. C. Vliet. Natural convection local...
A HEAT TRANSFER TEXTBOOK - THIRD EDITION Episode 2 Part 10 pptx
... quite ac-
curate and widely-used, semi-empirical equation for correlating surface
470 Heat transfer in boiling and other phase-change congurations Đ9 .2
Table 9 .2 Selected values of the surface ... 25 8 2. 80
25 5 2. 29
25 3 1.95
Isopropyl alcohol 10 to 100 22 .90 0.0789
Mercury 5 to 20 0 490.60 .20 49
Methane 90 18.877
100 16. 328
115 12. 371
Methyl alcohol 10 to 60 24...
A HEAT TRANSFER TEXTBOOK - THIRD EDITION Episode 3 Part 9 pdf
... 1 29 .3 304.4 1 096
35 0 231 5 895 .2 1 09. 0 112.5 30 4.1 1078
36 0 2 290 824.881. 891 .0 30 3.8 1054
37 3 2257 717.0 30 3 .3 1022
400 21 83 346 .9 30 2.4 94 5
500 1828 299 .2 39 1
600 11 73 295 .9
700 292 .3
T
tp
2 73. 16 ... 8 ,95 4 38 4 39 8 11.57 4 83 420 401 39 1 38 9 38 4 37 8 36 6 35 2 33 6
DS-C15715
∗
8 ,90 0 38 4 36 5 ≈10.7 36 7 35 5 34 5 33 5 32 0...
A HEAT TRANSFER TEXTBOOK - THIRD EDITION Episode 3 Part 10 ppt
... Ambrazyavichyus
(1961), 32 5, 32 6, 33 9
Žukauskas and Šlanciauskas (1987),
32 5, 32 6, 33 9
Žukauskas (1972), 38 2, 38 3, 39 5
Žukauskas (1987), 38 2, 39 6
726 Appendix C: Nomenclature
E,E
0
voltage, initial voltage (V)
e, ... 10
−24
yocto y
10
21
zetta Z 10
−21
zepto z
10
18
exa E 10
−18
atto a
10
15
peta P 10
−15
femto f
10
12
tera T 10
−12
pico p
10
9
gig...
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