EDM SYSCROLL 140 360 AIR EVO

SYSCROLL AIR EVO
|
15
EVAPORATOR CONDENSER
Fouling factor
(m
2
.°C/kW)
Cooling capacity
factor
Power input
factor
Fouling factor
(m
2
.°C/kW)
Cooling capacity
factor
Power input
factor
0.044 1.000 1.000 0.044 1.000 1.000
0.088 0.987 0.995 0.088 0.987 1.023
0.176 0.964 0.985 0.176 0.955 1.068
0.352 0.915 0.962 0.352 0.910 1.135
Correction Factors
Fouling factors
Altitude (m) Cooling capacity factor Power input factor
0 1.000 1.000
600 0.987 1.010
1200 0.973 1.020
1800 0.958 1.029
2400 0.943 1.038
Altitude factors
System Water Volume
The minimum system water volume is calculated using the minimum compressor running time (1.5 minute for scroll com-
pressor) and the lower capacity step (only one compressor running among the four compressors installed):
V=
P x t
(n x 25 x ΔT)
Where V : Water volume (litre)
P : Unit total cooling capacity (W)
n : Number of compressor steps
t : Compressor minimum running time (minute)
ΔT : Evaporator temperature difference (°C)
With t = 1.5 minute, ΔT = 5 °C and n = 4, the minimum system water volume is about V = 3 litres/kW.