How to Calculate which Liquid-to-Liquid Cooling System is Right for Your Application
In most Liquid-to-Liquid Cooling applications, we know the temperature of facility water (TF), the desired process set-point temperature (TP), the flow rate through the process ( P) and the heat load of the process, Q.
To determine the required capacity, Q/ITD, we first need to calculate the change in temperature, ΔT, through the process. We can do this either by solving the heat capacity equation:
or by using the heat capacity graphs found in our Thermal Reference Guide.
Next, we calculate Q/ITD to find the required cooling capacity. Q is the process heat load. ITD, the initial temperature difference, is the difference in temperature between warm return water, (TP
+ ΔT) and cold facility water (TF
Finally, refer to the Liquid Cooling System (LCS) performance curves to determine the facility process flow rate required to achieve calculated Q/ITD.