Product Manual

User Manual US-EN SR 10-480 AC
02250246-045 R02
17
Subject to EAR. ECCN EAR99 and related export control restrictions.
8.4 Correction factors
Correction factor for operating pressure modifications:
Inlet air pressure psig
60
80
100
120
140
160
180
203
barg
4
5.5
7
8
10
11
12
14
Factor (F1)
0.79
0.91
1.00
1.07
1.13
1.18
1.23
1.27
Correction factor for ambient temperature modifications:
Ambient temperature ºF
80
90
95
100
105
110
115
ºC
27
32
35
38
40
43
45
Factor (F2)
1.10
1.07
1.04
1.00
0.93
0.83
0.70
Correction factor for inlet air temperature modifications:
Air temperature
ºF
90
100
110
122
130
ºC
32
38
43
50
55
Factor (F3)
1.11
1.00
0.80
0.65
0.53
Correction factor for DewPoint modifications:
DewPoint ºF
38
41
45
50
ºC
3
5
7
10
Factor (F4)
0.92
1.00
1.07
1.25
Calculation of the actual air throughput:
Actual air throughput = air throughput acc. to planning x factor (F1) x factor (F2) x factor (F3) x factor (F4)
Example:
The SR 75 has a planned nominal capacity of 75 scfm (127 m³/h). The highest achievable air mass under the
following operating conditions is:
 Air inlet pressure = 120 psig (8 barg)
 Ambient temperature = 105°F (40°C)
 Air inlet temperature = 122°F (50°C)
 Pressure dew point = 50°F (10°C)
  Factor (F1) = 1.07
  Factor (F2) = 0.93
  Factor (F3) = 0.65
  Factor (F4) = 1.25
Every function parameter corresponds to a numerical factor which, multiplied by the planned nominal capacity,
determines the following: