Correction Factors - Beko DRYPOINT RS 25-1010 HP50 Instructions For Installation And Operation Manual

Installation
8.3

Correction factors

Correction factor for operating pressure changes:
Inlet air pressure
Factor (F1)
Correction factor for ambient temperature changes (Air-Cooled):
Ambient temperature
Factor (F2)
Correction factor for inlet air temperature changes:
Air temperature
Factor (F3)
Correction factor for DewPoint changes:
DewPoint ºC
Factor (F4)
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 180 HP50 has a planned nominal capacity of 180 m³/h. The highest achievable air
mass under the following operating conditions is:

Air inlet pressure = 35 bar(g)

Ambient temperature = 35°C

Air inlet temperature = 45°C

Pressure dew point = 10°C
Every function parameter corresponds to a numerical factor which, multiplied by the planned nominal capacity,
determines the following:
144 m³/h 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 =
Example:
The following operating parameters are known:

Required air mass = 200 m

Air inlet pressure = 35 bar(g)

Ambient temperature = 35°C

Air inlet temperature = 45°C

Pressure dew point = 10°C
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 =
The suitable model for these requirements is DRYPOINT RS 320 HP50 (with a spec. nominal capacity of 315 m³/h).
16
bar(g) 15
0.57
ºC 25
1.00
ºC 25
1.20
3
1.00
Actual air throughput = 180 x 0.94 x 0.90 x 0.69 x 1.37 = 144 m³/h
Factor (F1) x Factor (F2) x Factor (F3) x Factor (F4)
3
/h
0.94 x 0.90 x 0.69 x 1.37
20 25 30
0.70 0.80 0.88
30 35
0.96 0.90
30 35 40
1.12 1.00 0.83
5
1.09
 Factor (F1) = 0.94
 Factor (F2) = 0.90
 Factor (F3) = 0.69
 Factor (F4) = 1.37
Requ. air throughput
 Factor (F1) = 0.94
 Factor (F2) = 0.90
 Factor (F3) = 0.69
 Factor (F4) = 1.37
200
= 250 m³/h
35 40
0.94 1.00
40 45
0.82 0.72
45 50 55
0.69 0.59 0.50
7
1.19
DRYPOINT® RS 25-1010 HP50
45 50
1.05 1.10
50
0.60
60 65
0.44 0.39
10
1.37