Honeywell AUTOMATIC CONTROL SI Edition

ENGINEERING MANUAL OF AUTOMATIC CONTROL
AIR HANDLING SYSTEM CONTROL APPLICATIONS
261
ASHRAE PSYCHROMETRIC CHARTS
ASHRAE Psychrometric Chart No. 1.
TOTAL HEAT
SENSIBLE HEAT
∆ H
s
∆ H
t
∆ h ∆ W
ENTHALPY
HUMIDITY RATIO
1.0 1.0
0
-
∞∞
∞
10.0
5.0
4.0
0.4
0.6
0.8
0.2
3.0
2.5
2.0
1.0
0
-2.0
2.0
4.0
-4.0
-2.0
-1.0
-0.5
-5.0
M15336