Pro/Forums - View Single Post - How do you calculate how a rad performs based on the data?

jaydee · 10-17-2007, 05:37 PM

I think you need more than one graph of data. One graph for Pressure drop and flow rate and then one for heat dissipation and flow rate.

I usually get an idea what my flow rate is before adding the radiator. Then using their Pressure drop information for the rad calculate what my flow rate will be after adding the rad to the loop.

Once I got the flow rate then use the Flow rate and heat dissipation graph to get an idea how much heat the rad will dissipate at the flow rate I am running. If the rad fits the wattage I will be dumping then good to go. If not start over using a better radiator.

Also a 3rd graph with Thermal resistance and flow rate might be good to. Then you can get an idea what CFM fan is needed.

Might be a little off on that but pretty sure that is what I used to do.

10-17-2007, 05:37 PM	#2
jaydee Put up or Shut Up Join Date: Dec 2001 Location: Spokane WA Posts: 6,506	Re: How do you calculate how a rad performs based on the data? I think you need more than one graph of data. One graph for Pressure drop and flow rate and then one for heat dissipation and flow rate. I usually get an idea what my flow rate is before adding the radiator. Then using their Pressure drop information for the rad calculate what my flow rate will be after adding the rad to the loop. Once I got the flow rate then use the Flow rate and heat dissipation graph to get an idea how much heat the rad will dissipate at the flow rate I am running. If the rad fits the wattage I will be dumping then good to go. If not start over using a better radiator. Also a 3rd graph with Thermal resistance and flow rate might be good to. Then you can get an idea what CFM fan is needed. Might be a little off on that but pretty sure that is what I used to do.