Fillable Printable Basic Psychrometric Chart
Fillable Printable Basic Psychrometric Chart
Basic Psychrometric Chart
BAROMETRIC PRESSURE : 29.921 INCHES OF MERCURY
PSYCHROMETRIC CHART
NORMAL TEMPERATURE
I-P Units
SEA LEVEL
-10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120
DRY BULB TEMPERATURE - °F
0
5
1
0
1
5
2
0
2
5
3
0
3
5
4
0
4
5
4
5
5
0
5
0
ENTHALPY - BTU PER POUND OF DRY AIR
0
5
1
0
1
5
2
0
2
5
3
0
3
5
4
0
E
N
T
H
A
L
P
Y
-
B
T
U
P
E
R
P
O
U
N
D
O
F
D
R
Y
A
I
R
.05
.10
.15
.20
.25
.30
.35
.40
.45
.50
.55
.60
.65
.70
.75
.80
.85
.90
.95
VAPOR PRESSURE - INCHES OF MERCURY
0
10
20
25
30
35
40
45
50
55
60
65
70
75
DEW POINT TEMPERATURE - °F
1.00
0.95
0.90
0.85
0.80
0.75
0.70
0.65
0.60
0.55
0.50
0.450.400.350.300.250.20
SENSIBLE HEAT RATIO = Qs / Qt
SENSIBLE HEAT RATIO = Qs / Qt
10
20
30
40
50
60
70
80
90
100
110
120
130
140
1
5
%
2
5
%
2
%
4
%
6
%
8
%
R
E
L
A
T
I
V
E
H
U
M
I
D
I
T
Y
1
0
%
R
E
L
A
T
I
V
E
H
U
M
I
D
I
T
Y
2
0
%
3
0
%
4
0
%
5
0
%
6
0
%
7
0
%
8
0
%
9
0
%
-5
0
0
5
5
1
0
10
1
5
15
2
0
20
2
5
25
3
0
30
3
5
35
4
0
40
4
5
45
5
0
50
5
5
55
6
0
60
6
5
65
7
0
70
7
5
W
E
T
B
U
L
B
T
E
M
P
E
R
A
T
U
R
E
-
°
F
75
8
0
1
2
.
0
1
3
.
0
1
4
.
0
V
O
L
U
M
E
-
C
U
.
F
T
.
P
E
R
L
B
.
D
R
Y
A
I
R
HUMIDITY RATIO - GRAINS OF MOISTURE PER POUND OF DRY AIR
0
1.0 1.0
:
-
2
.
0
4
.
0
8
.
0
-
8
.
0
-
4
.
0
-
2
.
0
-
1
.
0
-
0
.
5
-
0
.
4
-
0
.
3
-
0
.
2
-
0
.
1
0
.
1
0
.
2
0
.
3
0
.
4
0
.
5
0
.
6
0
.
8
-
2
0
0
0
-
1
0
0
0
0
5
0
0
1
0
0
0
1
5
0
0
2
0
0
0
3
0
0
0
5
0
0
0
-
:
:
SENSIBLE HEAT Qs
TOTAL HEAT Qt
ENTHALPY
HUMIDITY RATIO
D
h
D
W
BAROMETRIC PRESSURE : 29.921 INCHES OF MERCURY
PSYCHROMETRIC CHART
NORMAL TEMPERATURE
I-P Units
SEA LEVEL
