Installation
14
DRYPOINT® RS 15-550 HP50 NA
8.3
Correction factors
Correction factor for operating pressure modifications:
Inlet air pressure
psig
200
300
400
500
550
580
650
725
barg
14
21
28
34
38
40
45
50
Factor (F1)
0.53
0.71
0.84
0.94
0.98
1.00
1.05
1.10
Correction factor for ambient temperature modifications (Air-Cooled):
Ambient temperature
ºF
80
90
95
100
105
110
115
122
ºC
27
32
35
38
40
43
45
50
Factor (F2)
1.11
1.09
1.06
1.00
0.94
0.87
0.78
0.69
Correction factor for inlet air temperature modifications:
Air temperature
ºF
90
100
110
122
130
140
150
ºC
32
38
43
50
55
60
65
Factor (F3)
1.16
1.00
0.82
0.68
0.61
0.52
0.45
Correction factor for DewPoint modifications:
DewPoint
ºF
38
41
45
50
ºC
3
5
7
10
Factor (F4)
1.00
1.08
1.20
1.36
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
DRYPOINT RS 100 HP50 NA
has a planned nominal capacity of 100 scfm (170 m³/h). The highest achievable air
mass under the following operating conditions is:
−
Air inlet pressure = 550 psig (38 barg)
−
Ambient temperature = 115°F (45°C)
−
Air inlet temperature = 122°F (50°C)
−
Pressure dew point = 50°F (10°C)
Factor (F1) = 0.98
Factor (F2) = 0.78
Factor (F3) = 0.68
Factor (F4) = 1.36
Every function parameter corresponds to a numerical factor which, multiplied by the planned nominal capacity,
determines the following:
Actual air throughput = 100 x 0.98 x 0.78 x 0.68 x 1.36 = 71 scfm (121 m³/h)
71 scfm
is the maximum flow rate of the dryer under the aforementioned operating conditions.
Selection of the best suitable model in accordance with the operating conditions:
Air throughput acc. to planning =
Requ. air throughput
Factor (F1) x Factor (F2) x Factor (F3) x Factor (F4)
Example:
The following operating parameters are known:
−
Required air mass = 100 scfm (170 m
3
/h)
−
Air inlet pressure = 550 psig (38 barg)
−
Ambient temperature = 115°F (45°C)
−
Air inlet temperature = 110°F (43°C)
−
Pressure dew point = 50°F (10°C)
Factor (F1) = 0.98
Factor (F2) = 0.78
Factor (F3) = 0.82
Factor (F4) = 1.36
To find out the correct dryer version, the required air mass must be divided by the correction factors of the parameters
indicated above:
Air throughput acc. to planning =
100
= 117 scfm (199 m³/h)
0.98 x 0.78 x 0.82 x 1.36
The suitable model for these requirements is
DRYPOINT RS 140 HP50 NA
(with a spec. nominal capacity of 140 scfm
(238 m³/h).
Summary of Contents for DRYPOINT RS 100-E HP50 NA
Page 22: ...22 DRYPOINT RS 15 550 HP50 NA 10 4 Technical data DRYPOINT RS 180 550 3phase HP50 NA 3 380 60 ...
Page 40: ...Appendices 40 DRYPOINT RS 15 550 HP50 NA 13 1 2 Dryer dimensions DRYPOINT RS 50 80 HP50 NA ...
Page 41: ...Appendices DRYPOINT RS 15 550 HP50 NA 41 13 1 3 Dryer dimensions DRYPOINT RS 100 140 HP50 NA ...
Page 42: ...Appendices 42 DRYPOINT RS 15 550 HP50 NA 13 1 4 Dryer dimensions DRYPOINT RS 180 350 HP50 NA ...
Page 43: ...Appendices DRYPOINT RS 15 550 HP50 NA 43 13 1 5 Dryer dimensions DRYPOINT RS 450 550 HP50 NA ...
Page 47: ...Appendices DRYPOINT RS 15 550 HP50 NA 47 13 2 2 Exploded diagram DRYPOINT RS 15 40 HP50 NA ...
Page 48: ...Appendices 48 DRYPOINT RS 15 550 HP50 NA 13 2 3 Exploded diagram DRYPOINT RS 50 80 HP50 NA ...
Page 49: ...Appendices DRYPOINT RS 15 550 HP50 NA 49 13 2 4 Exploded diagram DRYPOINT RS 100 140 HP50 NA ...
Page 59: ...Appendices DRYPOINT RS 15 550 HP50 NA 59 13 3 2 Electric diagram DRYPOINT RS 15 40 HP50 NA ...
Page 60: ...Appendices 60 DRYPOINT RS 15 550 HP50 NA 13 3 3 Electric diagram DRYPOINT RS 50 80 HP50 NA ...
Page 61: ...Appendices DRYPOINT RS 15 550 HP50 NA 61 13 3 4 Electric diagram DRYPOINT RS 100 140 HP50 NA ...
Page 62: ...Appendices 62 DRYPOINT RS 15 550 HP50 NA 13 3 5 Electric diagram DRYPOINT RS 180 260 HP50 NA ...
Page 63: ...Appendices DRYPOINT RS 15 550 HP50 NA 63 13 3 6 Electric diagram DRYPOINT RS 350 HP50 NA ...
Page 64: ...Appendices 64 DRYPOINT RS 15 550 HP50 NA 13 3 7 Electric diagram DRYPOINT RS 450 550 HP50 NA ...
Page 71: ...DRYPOINT RS 15 550 HP50 NA 71 ...
