MaxQ Technology, LLC
8380 S. Kyrene Road, Suite 107
Tempe, AZ 85284
Phone: (877) 804-0284
Cold Plate Performance Curves
How to read our cold plate performance curves
The performance curve shown here is for a cooling fluid of 50% water and 50% ethylene glycol, a very common mixture for the cooling of IGBT power modules when using aluminum cold plates.
To read the performance curve, simply follow the red line to get the cold plate's thermal resistance and the blue line to get the cold plate's pressure loss. The following is an example of how to use these curves.
- Cooling Fluid Flow Rate = 8 LPM (2.113 GPM)
- Cooling Fluid Inlet Temperature = 70 °C
- Total Heat Being Dissipated = 3000 W
From the performance curve, we get;
- At 8 LPM, Thermal Resistance = 0.008 °C/W
- Pressure Drop = 1.35 PSI
Therefore, the Coldplate Mounting Surface Temperature RISE is;
- Thermal Resistance x Heat Dissipated = Temp Rise
- 0.008 °C/W x 3000 W = 24 °C
If you have a Cooling Fluid Inlet Temperature of 70 °C, the cold plate
cooling surface temperature is 94 °C