Water Tower Condensor Loop

[MPdesign]

I have an open loop cooling tower that goes to heat exchanger.

On the other side of the heat exchanger is closed loop condensing water for packaged (or Unitary) self contained units.

Any idea what % of the time the cooling tower open loop would pump?

Any idea what % of the time the cooling tower closed loop would pump?

If this changes per season - then summer / winter and DC vs Florida.

Thank you for your help [:-graduat

[Terence McCann]

By chance are you looking at a water source heat pump system? Was there a boiler present?

From Trane:

Cooling Tower/Boiler System

A cooling tower/boiler system (see Figure

utilizes a closed heat recovery loop along

with multiple water source heat pumps in a

more conventional manner.

Typically, a boiler is employed to maintain

closed loop temperatures above 60 F and a

cooling tower to maintain closed loop

temperature below 90 F. All the units

function independantly, either by adding

heat, or removing heat from the closed

water loop, making this system more

efficient than air cooled systems.

[MPdesign]

The system provides condensing water to heat pumps as well as condensers for non-heat pumps. Mostly heat pumps though.

Yes, there is a boiler to increase the temp if it gets too cold because efficiency goes in the dirt if it is too cold in the winter.

[Terence McCann]

Read though this Joe and you should have a much better understanding of what you're looking at.

McQuay Water Source Heat Pump Design Manual

It's only 48 pages so I wouldn't say that after you're done reading you can go right to designing systems but it will give you a better idea of how these systems work.

[MPdesign]

I am sorry that I have stated this poorly.

I do not want to design anything. I understand how everything works.

What I am doing is energy saving calculations that require some estimate of how long the water tower pumps are pumping over a year. No-one on site usually has any idea.

Thank you again fro your help.

[Terence McCann]

I am sorry that I have stated this poorly.

I do not want to design anything. I understand how everything works.

What I am doing is energy saving calculations that require some estimate of how long the water tower pumps are pumping over a year. No-one on site usually has any idea.

Thank you again fro your help.

I couldn't begin to guess at their run time, sorry.