Questions TFS India (20/06/2016).
Water consumption: As this water is replaced by CB2, so will the below mentioned flow rates be same for CB2 also? 
Cooling capacity of CB1: Does it mean that the Cooling capacity(cooling power) of CB1 for various temp range should be taken as equal load on chiller condenser for which CB2 utility is foreseen.
Cooling water flow is depending on load and temperature. In general the outlet water temperature is approximately 35°C (as stated by supplier). 
If 35°C is outlet temp. (delta T&#61664; 35-15= 20°C) This would decrease the flow rate of CB2 so please cross check (for calculation all of utilities: delta T of 5°C between supply & return is assumed)

Answers TFSBV
1. At a load of 21 kW, cooling water temperature of 15°C and a flow 920l/min (as all stated in the spec sheet) the outlet temperature is calculated to be 34.6°C. At lower heat loads the flow decreases, but also the outlet temperature decreases. This is because the real control parameter is not the water outlet temperature but the cold gas temperature of the chiller. At a cooling water temperature of 15°C the maximum outlet temperature is 35°C.
2. Water consumption: assuming the same outlet temperatures, the CB consumption will be more than the water consumption since the specific heat capacity of brine is lower than water (50% water/50%glycol the specific heat capacity is approx. 3.3 kJ/kg°C in stead of 4.2 kJ/kg°C for water).
3. Cooling capacity: the spec gives the maximum cooling capacity for different temperature ranges, this given capacity is also the load to the CB2.
