What Are Discomfort Index (Di) And Dew Point Temperature (Dt) - Kanomax Climomaster S-6531-0E User Manual

What are Discomfort Index (DI) and Dew Point Temperature
(DT)?
＊＊What is DI and DT?＊＊
● Discomfort Index (DI)
Discomfort Index is an index to show how uncomfortable it is in the summer
time.
CLIMOMASTER use the formula, shown below, which is used by
Meteorological Agencies.
 
DI . 0 81 T . 0 01
Where
（℃）
T:Temperat ure
DI Scale
Comfortable
Uncomfortable
68 70
●
There are many formulas to calculate Dew Point Temperature,
but for A531, we have adopted the most general "Antnione" formula,
which is used to calculate saturated vapor pressure.

E exp[ 18 . 6686

H E

e
100
Where
H : RelativeHu
E : SaturatedV

DT 4030 . 183
actoolsupply.com
 
H ( . 0 99 T 14 . ) 3 46 3 .
H:Relative
Little
Uncomfortable
75
 
4030 . 183 /( 235 T
（ ）
midity % RH
（ ）
aporPressu re Pa
 
/[ 23 . 5614 ln( e )] 235
actoolsupply.com
（ ）
Humidity % RH
Very
Uncomfortable
80

)] 133 . 322
（℃）
T : Temperatur e
e : VaporPress ure
Cannot
Endure
86
（ ）
Pa
55