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Cooling water heat recovery

PostPosted: Tue Aug 19, 2008 7:59 am
by johnm299
High flow cooling water at 400 gpm at 65 degrees F is used to quench
molten polymer.

Approximately 150 - 300 tons of cooling capacity is used to remove
the heat from the cooling water.

Would like to recover heat energy in any form.

Response to Cooling water heat recovery

PostPosted: Tue Aug 19, 2008 2:57 pm
by bptdude___2569
You have plenty of cooling water, but it might help to state the temperature of the cooling water on the outbound hot side.

150-300 tons? hmmm, odd to measure water in tons, but enough to know total heat is a lot, even at moderate temperature value.

And this must be a a large facility.

The more we know, the more it would help, you ask a very open question with little details.

Are you in some part of the country that requires lots of building heat at this facility?

Your best bet might be to create steam, and run steam pipes for steam heat, as has been done for decades at many large facilites. This is much more efficient than most people realize. And no rocket science required.

Response to Cooling water heat recovery

PostPosted: Sat Aug 23, 2008 4:13 pm
by stan.hornbaker
I think the 150 -300 tons refers to refrigeration, the equivalent in BTU's would be (150 - 300) x 288,000 BTU's. This a a lot of heat going to waste and a lot of water going down stream. The outlet temperature is critical to an assesment of recovery possibilities.