Obtain the correction factor for the temperature from data
A or B and the correction factor for the air pressure from data C.
Temperature Data A or B =
Air pressure Data C =
Series IDUS: Data A
Series IDFS: Data B
Calculate corrected air flow by using A or B and C.
Corrected air flow = (Air flow) (Data A x Data C)
Corrected air flow = (Air flow) (Data B x Data C)
Select a model having an air flow capacity that is higher
than the corrected air flow.
IDFS selection example
The procedure for selecting the optimum model under the following
conditions is shown below.
Inlet air temperature 55C
Outlet air pressure dew point 10C
Ambient temperature 35C
Inlet air pressure 0.7MPa
Air flow 350 l/min (ANR)
The procedure for selecting the optimum model under the following
conditions is shown below.
Inlet air temperature 35C
Outlet air pressure dew point 10C
Ambient temperature 35C
Inlet air pressure 0.5MPa
Air flow 1200 l/min (ANR)
1
3
2
IDUS selection example
1
2
3
4
B= 0.95 based on conditions q, wand e
C = 0.90 based on condition r
Based on condition t, Band C
Corrected air flow = 1200 (0.95 x 0.90) = 1400 l/min (ANR)
Based on condition y;
IDFS11E is selected as the model to process an air flow larger than
1400 l/min (ANR) with a 60Hz power supply, according to data D-2.
A= 0.75 based on conditions q, wand e
C= 1.00 based on condition r
Based on condition t, Aand C
Corrected air flow = 350 (0.75 x 1.00) = 467 l/min (ANR)
Based on condition y;
IDUS4E is selected as the model to process an air flow larger than 467
l
/min
(ANR) with a 50Hz power supply, according to data
D
-1.
Note) l/min (ANR) is for reference conditions of 20C, 1 ATM and 65% relative humidity.
Condition Condition
30
32
35
40
80
5
0.59
0.56
0.54
0.50
10
0.84
0.80
0.77
0.72
15
1.09
1.04
1.00
0.94
70
5
0.62
0.60
0.57
0.54
10
0.89
0.85
0.82
0.77
15
1.16
1.11
1.06
0.99
65
5
0.66
0.63
0.60
0.57
10
0.95
0.90
0.86
0.81
15
1.23
1.17
1.12
1.05
60
5
0.70
0.67
0.64
0.60
10
1.00
0.95
0.91
0.86
15
1.30
1.24
1.19
1.11
55
5
0.74
0.70
0.67
0.63
10
1.05
1.00
0.96
0.90
15
1.37
1.30
1.25
1.17
50
5
0.88
0.84
0.81
0.76
10
1.26
1.20
1.15
1.08
15
1.64
1.56
1.50
1.40
Inlet air temp. (C)
Outlet air press.
dew point (C)
Ambient
temp. (C)
Inlet air pressure (MPa)
Correction factor
0.15
0.65
0.2
0.68
0.3
0.77
0.4
0.84
0.5
0.90
0.6
0.95
0.7
1.00
0.8
1.03
0.9
1.06
1.0
1.08
Air flow capacity (l/min (ANR))
IDUS3E
310
IDUS4E
500
IDUS6E
740
Data A Correction factor for temperature (Series IDUS)
Data B Correction factor for temperature (Series IDFS)
Data C Correction factor for air pressure (Series IDUS)
Data D-1 Air flow capacity (Series IDUS)
Model
Air flow capacity (l/min (ANR))
IDFS6E
740
IDFS8E
1200
IDFS11E
1650
Data D-2 Air flow capacity (Series IDFS)
Model
1
2
3
4
30
32
35
40
50
5
0.40
0.39
0.37
0.35
10
0.58
0.55
0.53
0.50
15
0.75
0.72
0.69
0.64
45
5
0.48
0.46
0.44
0.41
10
0.68
0.65
0.62
0.59
15
0.89
0.85
0.81
0.76
40
5
0.59
0.46
0.37
0.28
10
0.84
0.83
0.77
0.72
15
1.09
1.04
1.00
0.94
35
5
0.74
0.70
0.67
0.63
10
1.05
1.00
0.96
0.90
15
1.37
1.30
1.25
1.17
30
5
0.92
0.88
0.84
0.79
10
1.31
1.25
1.20
1.13
15
1.71
1.63
1.56
1.46
Inlet air temp. (C)
Outlet air press.
dew point (C)
Ambient
temp. (C)
