bitzer skm chiller analysis
TRANSCRIPT
Version 6.0 07.06.2012 / All data subject to change. 1 / 2
Compressor Selection: Compact Screw Compressors CS
Input ValuesCompressor model (CSH7571-90Y)Refrigerant R134aReference temperature Dew point temp.Evaporating SST 12,50 °CCondensing SDT 60,0 °CAuto. subcooling AutoSuction gas temperature 30,0 °COperating mode ECOPower supply 400V-3-50HzCapacity Control 100%Useful superheat 100%
ResultCompressor CSH7571-90Y-40PCapacity steps 100%Cooling capacity 192,7 kWCooling capacity * 194,5 kWEvaporator capacity 192,7 kWPower input 60,5 kWCurrent (400V) 99,2 AVoltage range 380-415VCOP/EER 3,19COP/EER * 3,19Mass flow LP 4468 kg/hMass flow HP 5098 kg/hOperating mode ECOLiquid temp. (sc) 47,4 °CMass flow ECO 630 kg/hsub cooler load 24,8 kWsat. ECO Temp. 37,4 °CECO pressure 9,48 bar(a)Oil volume flow 0,97 m³/hDischarge gas temp. w/o cooling 90,5 °C
*Compressor-Performance data certified by ASERCOM (see T.Data/ Notes)*According to EN12900 (10K suction gas superheat, liquid subcooling in Economiser with 5K temperaturedifference)
Version 6.0 07.06.2012 / All data subject to change. 2 / 2
Legendoil cooling required
additional cooling required
CR 100%
CR 75%
CR 50%
CR 25%
M1: motor 1
M2: motor 2