9
P
sych
rom
et
ri
c
ch
art
.025
.024
.023
.022
.021
.020
.019
.018
.017
.016
.015
.014
.013
.012
.95
.90
.85
.80
.75
.70
.65
.60
.55
.50
.45
.40
.35
.011
.010
.009
.008
.007
.006
.005
.004
.003
.002
.001
0
Sensib
le
heat factor
P
ounds of moisture
per pound of dr
y air
7
8
9
10
11
12
32
33
34
35
36
37
38
39
40
41
42
43
44
45
47
48
49
46
27
28
29
30
31
19
20
21
22
23
24
25
26
12
13
14
15
16
17
18
W
et Bulb
,
De
wpoint or
Satur
ation
Temper
ature F
Dr
y Bulb
Temper
ature F
20
Belo
w 32
˚
F,
proper
ties and enthalp
y de
viation lines are f
or ice
.
25
25
30
35
40
45
50
55
60
65
70
75
80
30
35
40
85
90
95
100
105
180
170
160
150
140
130
120
110
100
90
80
70
60
50
40
30
20
10
0
45
50
55
60
65
70
75
80
85
90
95
100
105
110
Enthalp
y at satur
ation, Btu per pound of dr
y air
Gr
ains of moisture
per pound of dr
y air
14.0 cu ft
14.5 cu ft per pound of dr
y air
13.5 cu ft
13.0 cu ft
12.5 cu ft
90% Relative Humidity
80%
70%
60%
50%
40%
30%
20%
10%
-.02 BTU
-.01 BTU
-.02 Btu
-.04 Btu
-.06 Btu
-.08 Btu
+0.1 Btu
+0.2 Btu
+0.3 Btu
+0.4 Btu
+0.5 Btu
80%
60%
40%
20%
Btu per pound of dr
y air -0.3 Btu
Enthalpy de
viation
HR
V
