0.20
0.25 0.30 0.35 SENSIBLE HEAT RATIO = Qs / Qt 17 18 0 0 0
15
0.40
16
0
14
0
47.0
0.98
0
45.0
1.02
1.00
13
46.0
40
44.0
38
43.0
35 0
36
LB
BAROMETRIC PRESSURE: 101.325 kPa
2.0 -4 8.0 .0
-째
24
AM GR ILO
0.92
4.7
RK PE
25.0
25
KJ
60
0.90
EN TH A
LP
Y-
25
%
15 %
90%
50
80 70
30
OLU
%
V 0.88
20
60
% 50
0
-25
-20
-15
-10
-15
-15
-10
0.78
-30
-20
0.76
-35
-5
-10
10%
0
-2
0
TIVE RELA
ITY
HUMID
20
23.0 22.0 18
21.0 20.0
16
19.0 18.0 17.0
14
16.0 14.0 13.0 10
12.0
8
-5
0
5
10
15
20
25
30
35
40
45
50
60
25 0.70
0.75
0
7.0 6.0 5.0 3.0 2.0
65
0
14
0
13
20
0.85 12
0
0.90 0.95 1.00
8.0 6
15
0
0.80
10.0 9.0
2
55
0.65
11.0
4.0 2%
0.60
15.0 12
1.0
15
11
0
10
5 10
0
0 -5 -10 90
70
DRY BULB TEMPERATURE - 째C
Chart by: HANDS DOWN SOFTWARE, www.handsdownsoftware.com
-3
20%
24.0
4
4%
AIR
-5
RE
6%
DRY
0
0.80
-2 -3
8%
R KG
0
30
0.82
-1 0
-25
%
40
%
5
TI
LA
R PE
5
HU
ETE
0.84
10
10
VE
IC M
10
M
CUB
20
0.86
15
TY
I
ID
ME -
%
15
26.0
22
HUMIDITY RATIO - GRAMS MOISTURE PER KILOGRAM DRY AIR
7.0
2.3
h W
70
40
-30
28.0 27.0
20
0
30.0 29.0
25%
IR YA DR
0.2
1.2
3.5 ENTHALPY HUMIDITY RATIO
30
80
16
30
31.0
OF
11.7
0.4
0.1
0
0.3
-1.
0.0
0.55
32.0 26
0
-0.5 -0.4.3 -0 -0.2 -0.1
0
33.0
28
30
0
34.0
-2.
0.5
90
-2.3
17
35.0
30 C
-4.6
4.0
- 8.0 -
RE
0.94
Qs Qt
0.50
36.0
TU
SENSIBLE HEAT RATIO = Qs / Qt
0.8
37.0
RA
0
-
1.0
SENSIBLE HEAT TOTAL HEAT
32
M PE
10
0.6
38.0
TE
-1
0
0
10
20
30
40
50
60
70
80
ENTHALPY - KJ PER KILOGRAM OF DRY AIR
BU
DEW POINT TEMPERATURE - 째C
0
SEA LEVEL
1.0
0
39.0
0.96
ET
11
18
40.0 34
W
VAPOR PRESSURE - MM OF MERCURY
35
NORMAL TEMPERATURE
35
41.0
PSYCHROMETRIC CHART SI Units
0.45
42.0
12