BronYrAur
Mechanical
- Nov 2, 2005
- 799
Hi all,
I am looking for ideas on the best way to cool water from 160 deg F to 60 deg F. I have been asked to look at a situation that currently uses city water in a once-through system to cool a process. The water is then dumped. I'm trying to think of a closed-loop way to do it and thereby save the water dumping. This process water cools a machine that makes sterile water. I don't think they would want glycol in the process water, so I am probably looking at a heat exchanger no matter what. On the other side, I will obviously need a chiller, but I could incorporate a fluid cooler when ambient permits. Project is near Chicago. I don't think there is a need to recover the heat; they just want to get rid of it.
Given that I need a 100 deg F delta-T, I am guessing that I should incorporate a storage tank to give me some volume/dilution capabilities. The process in intermittent, which further complicates things. I am told that roughly 1,880 gallons per hour of water is used, but again not continuously. So, I don't know a GPM. Maybe figure 1/2 time on and 1/2 time off until I know more, so that would give about 62 GPM.
Anyone have experience with large delta-T like this?
I am looking for ideas on the best way to cool water from 160 deg F to 60 deg F. I have been asked to look at a situation that currently uses city water in a once-through system to cool a process. The water is then dumped. I'm trying to think of a closed-loop way to do it and thereby save the water dumping. This process water cools a machine that makes sterile water. I don't think they would want glycol in the process water, so I am probably looking at a heat exchanger no matter what. On the other side, I will obviously need a chiller, but I could incorporate a fluid cooler when ambient permits. Project is near Chicago. I don't think there is a need to recover the heat; they just want to get rid of it.
Given that I need a 100 deg F delta-T, I am guessing that I should incorporate a storage tank to give me some volume/dilution capabilities. The process in intermittent, which further complicates things. I am told that roughly 1,880 gallons per hour of water is used, but again not continuously. So, I don't know a GPM. Maybe figure 1/2 time on and 1/2 time off until I know more, so that would give about 62 GPM.
Anyone have experience with large delta-T like this?