Cooling Tower Tonnage
Cooling Tower Tonnage
(OP)
Hello again! I am a little bit puzzled of the Cooling Tower we have in our facility. It has a capacity of 758 ton but handles 2-500 ton chillers. I've been told that it is because of the humidity factor in the area. The location is in San Diego, CA. Well, thank you in advance for your thoughts on this one.





RE: Cooling Tower Tonnage
RE: Cooling Tower Tonnage
RE: Cooling Tower Tonnage
RE: Cooling Tower Tonnage
What is the cooling tower vfd actually controlling - Condenser water supply temp signal?
Also do you have staged or vfd CW pumps?
What is the wetbulb doing during these times?
What are the flow and inlet/outlet temps to each component? - knowing this will help you understand the actual load each is dealing with.
RE: Cooling Tower Tonnage
RE: Cooling Tower Tonnage
The manufactures pick a nominal rating point and rate then based on a compressor producing a given amount of evaporator tons for the given wet bulb, condensing temperature and chiller evaporator temperature. Any condition other than this rating point has to be adjusted with a series of multipliers.
Ken
Ken
KE5DFR
RE: Cooling Tower Tonnage
Similarly, what is the flow rate through the cooling tower, the hot and cold temperatures and the design ambient wet bulb temperature ?
Q = mCp Delta T.
People have a tendency to talk on "nominal capacity" and this could be one of the reasons for the above difference ???
HVAC68