26
TPM 092/13
8. Pressure loss
7.1.
Pressure loss calculation
III. TECHNICAL DATA
p =
w
2
2
p
[Pa]
presure loss
w
[m.s ]
air flow speed in nominal damper section
[kg.m ]
air density
[-]
coefficient of local pressure loss for the nominal damper section
(see Tab. 9.1.1.)
-1
-3
7.2.
Determination of pressure loss by using diagram 8.2.1. = 1,2 kg.m
-3
Diagram 8.2.1. Pressure losses for air density =1,2 kg.m
-3
Tab. 9.1.1. Coefficient of local pressure loss
D
100
125
140
150
160
180
200
2,736
2,099
1,781
1,527
1,272
0,929
0,636
9.1.
Coefficient of local pressure loss (-)
9. Coefficient of local pressure loss
