A client has requested the feasability of diverting a 4" condenser water return main through a suspended crawlspace below an exterior pedestrian bridged crosswalk with the intent to force 85-90 deg. water through a manifold of fintubes (to provide radiant heat to slow paver freezing above)and...
I'm the PM for a mechanical project including (2) 150 ton centrif. chillers & (1)ice chiller (BAC). The target date to commission CHW system is end of March 03, however my concern is that at this time there may not be substansial load to properly commission. The centrif. chiller manuf...
I am looking for help in determining the cooling load on an existing chiller. We want to generate a profile over a 24 hour period. I've been told to take temperature readings influent and effluent the chiller and the pressure drop would be part of the equation. I am looking for a...
You need to know the MBH input for the heater, the tonnage is associated with the cooling. Then you need to determine the incoming gas pressure to size your gas pipe. Gas pipe sizing tables are in the International Mechanical Code book or the National Fuel Gas Code Handbook. You can run higher...
If you are sizing a duct supply for 2" w.g. what friction loss unit do you line up with the air volume. Is it .02, .2, or 2? Additionally I'm looking for a good easy to use HVAC load computer program. Any recomendations?
