Installation
16
BEKOBLIZZ® LC 12-355
8.3 Correction
factors
Correction factor for operating pressure changes:
Inlet
air
pressure bar(g)
4 5 6 7 8 10 12 14 15
Factor (F1)
0.77
0.86
0.93
1.00 1.05 1.14 1.21 1.27 1.30
Correction factor for ambient temperature changes (Air-Cooled):
Ambient temperature
ºC
25 30 35 40 45 50
Factor
(F2)
1.00 0.96 0.90 0.82 0.72 0.60
Correction factor for inlet air temperature changes:
Air temperature
ºC
25 30 35 40 45 50 55
Factor
(F3)
1.39 1.20 1.00 0.80 0.63 0.51 0.46
Correction factor for DewPoint changes:
DewPoint
ºC
4
5
7
10
15
20
Factor
(F4)
0.88 1.00 1.04 1.15 1.42 1.82
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
BEKOBLIZZ LC 240
has a planned nominal capacity of
240 m³/h
. The highest achievable air mass
under the following operating conditions is:
Air inlet pressure = 8 bar(g)
Ambient temperature = 35°C
Air inlet temperature = 40°C
Pressure dew point = 5°C
Factor (F1) = 1.05
Factor (F2) = 0.90
Factor (F3) = 0.80
Factor (F4) = 1.00
Every function parameter corresponds to a numerical factor which, multiplied by the planned nominal capacity,
determines the following:
Actual air throughput = 240 x 1.05 x 0.90 x 0.80 x 1.00 = 181 m³/h
181 m³/h
is the maximum flow rate of the chiller 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 m
3
/h
Air inlet pressure = 8 bar(g)
Ambient temperature = 35°C
Air inlet temperature = 40°C
Pressure dew point = 5°C
Factor (F1) = 1.05
Factor (F2) = 0.90
Factor (F3) = 0.80
Factor (F4) = 1.00
To find out the correct chiller version, the required air mass must be divided by the correction factors of the
parameters indicated above:
Air throughput acc. to planning =
100
= 132 m³/h
1.05 x 0.90 x 0.80 x 1.00
The suitable model for these requirements is
BEKOBLIZZ LC 150
(with a spec. nominal capacity of 150 m³/h).
Summary of Contents for Bekoblizz LC 12-355
Page 23: ...Technical data BEKOBLIZZ LC 12 355 23 10 2 Technical data BEKOBLIZZ LC 55 355 1 230 50 ...
Page 24: ...Technical data 24 BEKOBLIZZ LC 12 355 10 3 Technical data BEKOBLIZZ LC 12 150 1 115 60 ...
Page 25: ...Technical data BEKOBLIZZ LC 12 355 25 10 4 Technical data BEKOBLIZZ LC 55 355 1 230 60 ...
Page 40: ...Maintenance troubleshooting spare parts and dismantling 40 BEKOBLIZZ LC 12 355 ...
Page 41: ...Maintenance troubleshooting spare parts and dismantling BEKOBLIZZ LC 12 355 41 ...
Page 44: ...Appendices 44 BEKOBLIZZ LC 12 355 13 1 2 Chiller dimensions BEKOBLIZZ LC 55 ...
Page 45: ...Appendices BEKOBLIZZ LC 12 355 45 13 1 3 Chiller dimensions BEKOBLIZZ LC 90 115 ...
Page 46: ...Appendices 46 BEKOBLIZZ LC 12 355 13 1 4 Chiller dimensions BEKOBLIZZ LC 150 240 ...
Page 47: ...Appendices BEKOBLIZZ LC 12 355 47 13 1 5 Chiller dimensions BEKOBLIZZ LC 355 ...
Page 49: ...Appendices BEKOBLIZZ LC 12 355 49 13 2 2 Exploded diagram BEKOBLIZZ LC 12 35 ...
Page 50: ...Appendices 50 BEKOBLIZZ LC 12 355 13 2 3 Exploded diagram BEKOBLIZZ LC 55 ...
Page 51: ...Appendices BEKOBLIZZ LC 12 355 51 13 2 4 Exploded diagram BEKOBLIZZ LC 90 115 ...
Page 52: ...Appendices 52 BEKOBLIZZ LC 12 355 13 2 5 Exploded diagram BEKOBLIZZ LC 150 240 ...
Page 53: ...Appendices BEKOBLIZZ LC 12 355 53 13 2 6 Exploded diagram BEKOBLIZZ LC 355 ...
Page 60: ...Appendices 60 BEKOBLIZZ LC 12 355 ...
Page 61: ...EC Declaration of Conformity BEKOBLIZZ LC 12 355 61 14 EC Declaration of Conformity ...
Page 62: ...EC Declaration of Conformity 62 BEKOBLIZZ LC 12 355 ...
