Typical CHW heat gain in distribution loop
Typical CHW heat gain in distribution loop
(OP)
Is there a typical efficiency or heat gain rate due chilled water distribution and insulation inefficiencies?
Example: A Chiller producing 1000 tons/hr of which 750 tons are used by fan coil units and maybe the rest is lost in distribution heat gain. In this example the efficiency would be 750/1000 = .75 = 75%
Example: A Chiller producing 1000 tons/hr of which 750 tons are used by fan coil units and maybe the rest is lost in distribution heat gain. In this example the efficiency would be 750/1000 = .75 = 75%





RE: Typical CHW heat gain in distribution loop
I once calculated this temperature rise in a chilled water distribution network of more than 3.5 km (3500 m) of pipe length and amazingly that rise of water temperature at the other end was only 0.06 deg F. which is negligible for sure.
RE: Typical CHW heat gain in distribution loop
RE: Typical CHW heat gain in distribution loop
RE: Typical CHW heat gain in distribution loop
Usually, if you have significant parasitic losses through the insulation, they will be apparent - condensation dripping all over the place.