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4.5 degree C dew-point of LAT for cooling coil design

4.5 degree C dew-point of LAT for cooling coil design

4.5 degree C dew-point of LAT for cooling coil design

(OP)
I'm trying to use water medium instead of glycol in waterside of cooling coil due to it is not sure if any impact of glycol to the air side. Does it work for using a heat exchanger to provide 1.5 degree C chilled water for low temperature dewpoint coil loop design without glycol added?

RE: 4.5 degree C dew-point of LAT for cooling coil design

Glycol will increase parasitic losses over water.

Use propylene glycol if you are afraid of toxicity.

RE: 4.5 degree C dew-point of LAT for cooling coil design

(OP)
Is propylene glycol approved by FDA in the food manufacture application?

RE: 4.5 degree C dew-point of LAT for cooling coil design

Some propylene glycol is food grade, and some isn't. You'll have to ask the propylene glycol supplier.

Best to you,

Goober Dave

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RE: 4.5 degree C dew-point of LAT for cooling coil design

(OP)
Is it possible to design the without any antifreeze of 1.5 degree C chilled water system for AHU'S cooling coil in practice?

RE: 4.5 degree C dew-point of LAT for cooling coil design

in practice 4 degrees C is considered freezing threshold.

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