**Total Heat Removed**

To calculate the total heat removed by air condition chilled-water

**h = 500 q ΔT**

h is the total heat removed in Btu per hour

q is the water flow rate in gallon per minute

**Δ**T is the temperature difference in *Fahrenheit*

**Evaporator Flow Rate**

To calculate the evaporator water flow rate we use this *equation*

**qe = htons 24 / ΔT **

qe is the evaporator water flow rate in gallon per minute

htons is the air condition cooling load in tons

**Δ**T is the temperature difference in *Fahrenheit*

**Condenser Flow Rate**

*To calculate the condenser water flow rate we use this equation*

**qc = htons 30 / ΔT**

*qc is the condenser water flow rate in gallon per minute*

htons is the air condition cooling load chiller tonnage in tons

**Δ**T is the temperature difference in *Fahrenheit*

The air conditioner in a chilled-water system cools water down to 40 – 45 °F and The chilled water is distributed in a piping system throughout the building and connected to air condition cooling units wherever installed .