ME 402: Thermal System Design
Washington State University
Homework Set 5 Solutions
1)
Given:
C
T
K
m
W
U
s
m
V
K
kg
J
c
C
T
m
kg
m
A
kg
J
h
s
kg
m
Tables
From
C
T
in
c
air
nom
c
p
in
air
c
fr
fg
c
sat
vap
°
≤
≤
⋅
=
=
⋅
=
°
=
=
=
×
=
=
°
=
38
27
50
2
1007
30
17
.
1
25
.
0
10
35
.
1
015
.
0
45
,
2
,
,
,
3
2
5
,
ρ
&
Assumptions:
•
Neglect heat loss to surrounding
•
Constant properties
•
Heat transfer surface area remains constant
7
.
0
~
V
U
V
out
c
T
,
12
−
R
sat
c
T
m
,
&
sat
T
out
c
T
,
in
c
T
,

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