Propane refrigerant cooler Cooling system

[GSTeng]

I am in the process of designing a cooling system for an installation of a Dynamometer. I was not sure on where to put this post so it ended up here.

The manufacturer of the dyno recommends a evaporative cooling tower, but it is expensive and does not fit well with our space restrictions. Instead of the evaporative cooler we are going to use a fin-fan cooler to bring the dyno temperature down a little and then on our water holding tank we are going to install a cooling cuircuit and hook up a propane refrigerant cooler.

The cooling cuircuit will need to remove about one million BTU/Hr. I am looking for a vendor for this type of thing. I am not sure about what exactly I need but I know there is something out there that can do this. Any suggestions???

 

[sterl]

Are you using the propane as Refrigerant or fuel for an engine? or Both? What will be the energy source for the refrig circuit? Is the water closed loop and treated or?
Is there a tight tolerance on the water temp?
Is the water tank above ground, in ground, or?
Chilled water package systems based on propane as refrigerant at this scale would be available in Japan and Canada.
For propane as fuel, there are lots of local packagers....

 

[StoneCold]

If you crunch the economics you are going to want to go with the evaporative cooler. It is a lot cheaper both in capital cost and in operating cost.

Best of luck
StoneCold

 

[dcasto]

Google water chillers. Nutemp has loads of options. Propane refrigerent is normally used for temperatures below 0 F and get as cold as -50 F. If this is industrial stick with high temperatur refrigerants that operate at +30F or warmer, they are more efficient. My estimates are it would will take about 80 HP to run a refrigeration system to obtain 1 mmbtu/hr at 60F. Get a cooling tower.