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ASHRAE PSYCHROMETRIC CHART NO.1 55
NORMAL TEMPERATURE BAROMETRIC PRESSURE: 29.921 INCHES OF MERCURY Copyright 1992
R
90
AMERICAN SOCIETY OF HEATING, REFRIGERATING AND AIR-CONDITIONING ENGINEERS, INC.
SEA LEVEL
•
50
•
.028
0 15.
SENSIBLE HEAT TOTAL HEAT
Qs Qt
.026
45
•
85
WE
TB
80
UL B
.024 TE M
PE
55 RA
40
TU
RE -
.022
°F
80 ENTHALPY HUMIDITY RATIO
•h •W
.020
75
35
50 5 14.
AI R
-° F
Y
E
D R
.016
AT U R PE R TE M N
70
RA TI O
.014
SA TU
14.
65
UM OL
%
C E-
60
T U.F
40%
40 30%
0 1 3.
35
20%
15
20
110
105
100
95
90
85
80
70
65
60
55
50
45
40
35
5
10
Y
75
12.
E HUMIDIT 10% RELATIV
45
.012
.010
40
.008
.006 35
.004
.002
115
% 50
45
35
AIR RY B. D
50
% 60
5 13.
45
RL . PE
% 70
55
50
DRY BULB TEMPERATURE - °F
80
0V
% 90
55
40
HUMIDITY RATIO - POUNDS MOISTURE PER POUND DRY AIR
F O N D U PO R PE TU -B EN TH AL PY
70
65
60
15
.018
75
30
25
20
60
85
120
R
60
25
ENTHALPY - BTU PER POUND OF DRY AIR
30
ASHRAE PSYCHROMETRIC CHART NO.1
110
NORMAL TEMPERATURE BAROMETRIC PRESSURE: 101.325 kPa Copyright 1992
R
.030 R
SEA LEVEL
.029
100
AMERICAN SOCIETY OF HEATING, REFRIGERATING AND AIR-CONDITIONING ENGINEERS, INC.
.028 30
4 0.9
•
120
•
.027 .026
90 SENSIBLE HEAT TOTAL HEAT
Qs Qt
30 W
•
ET
120
.025 BU
80
LB T
EM
PE
.024 RA T
UR E
.023
- °C
110
2 0.9
.022 .021
70 ENTHALPY HUMIDITY RATIO
25
.020
•h •W
.019 25
.018
Y
-° C
DR F
RE
O
.015 HUMIDITY RATIO - KILOGRAMS MOISTURE PER KILOGRAM DRY AIR
20
TU
Y
RA
-K
J
TI O
N
PE
R
TE
M PE
R
20
SA
EN
8
% 90
% OL 6V
70
0.8
15
%
E UM
10
IC UB TE ME
% 50
4 0.8
10
-C
% 60
20
5
KG
2
ER
0.8
RP
40%
30%
YA DR IR
.014 .013 .012 .011
80
.010 .009 .008 .007
70
.006 .005 .004 .003
60
.002 .001
20
15
5
10 10
HUMIDITY
25
8 0.7
VE 10% RELATI
20
35
0 0.8
20%
30
5
10
30
45
80
DRY BULB TEMPERATURE - °C
30
40
15
90
50
AT
U
M RA G KI LO
.016
0.8
LP
0
50
40
TH A
.017
0.9
AI R
60
100
40
ENTHALPY - KJ PER KILOGRAM OF DRY AIR
50
NORMAL TEMPERATURE BAROMETRIC PRESSURE: 29.921 INCHES OF MERCURY Copyright 1992
R
90
AMERICAN SOCIETY OF HEATING, REFRIGERATING AND AIR-CONDITIONING ENGINEERS, INC.
SEA LEVEL
•
50
•
.028
0 15.
SENSIBLE HEAT TOTAL HEAT
Qs Qt
.026
45
•
85
WE
TB
80
UL B
.024 TE M
PE
55 RA
40
TU
RE -
.022
°F
80 ENTHALPY HUMIDITY RATIO
•h •W
.020
75
35
50 5 14.
AI R
-° F
Y
E
D R
.016
AT U R PE R TE M N
70
RA TI O
.014
SA TU
14.
65
UM OL
%
C E-
60
T U.F
40%
40 30%
0 1 3.
35
20%
15
20
110
105
100
95
90
85
80
70
65
60
55
50
45
40
35
5
10
Y
75
12.
E HUMIDIT 10% RELATIV
45
.012
.010
40
.008
.006 35
.004
.002
115
% 50
45
35
AIR RY B. D
50
% 60
5 13.
45
RL . PE
% 70
55
50
DRY BULB TEMPERATURE - °F
80
0V
% 90
55
40
HUMIDITY RATIO - POUNDS MOISTURE PER POUND DRY AIR
F O N D U PO R PE TU -B EN TH AL PY
70
65
60
15
.018
75
30
25
20
60
85
120
R
60
25
ENTHALPY - BTU PER POUND OF DRY AIR
30
ASHRAE PSYCHROMETRIC CHART NO.1
110
NORMAL TEMPERATURE BAROMETRIC PRESSURE: 101.325 kPa Copyright 1992
R
.030 R
SEA LEVEL
.029
100
AMERICAN SOCIETY OF HEATING, REFRIGERATING AND AIR-CONDITIONING ENGINEERS, INC.
.028 30
4 0.9
•
120
•
.027 .026
90 SENSIBLE HEAT TOTAL HEAT
Qs Qt
30 W
•
ET
120
.025 BU
80
LB T
EM
PE
.024 RA T
UR E
.023
- °C
110
2 0.9
.022 .021
70 ENTHALPY HUMIDITY RATIO
25
.020
•h •W
.019 25
.018
Y
-° C
DR F
RE
O
.015 HUMIDITY RATIO - KILOGRAMS MOISTURE PER KILOGRAM DRY AIR
20
TU
Y
RA
-K
J
TI O
N
PE
R
TE
M PE
R
20
SA
EN
8
% 90
% OL 6V
70
0.8
15
%
E UM
10
IC UB TE ME
% 50
4 0.8
10
-C
% 60
20
5
KG
2
ER
0.8
RP
40%
30%
YA DR IR
.014 .013 .012 .011
80
.010 .009 .008 .007
70
.006 .005 .004 .003
60
.002 .001
20
15
5
10 10
HUMIDITY
25
8 0.7
VE 10% RELATI
20
35
0 0.8
20%
30
5
10
30
45
80
DRY BULB TEMPERATURE - °C
30
40
15
90
50
AT
U
M RA G KI LO
.016
0.8
LP
0
50
40
TH A
.017
0.9
AI R
60
100
40
ENTHALPY - KJ PER KILOGRAM OF DRY AIR
50
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