Over the last few weeks the Monday Morning Minutes posts have looked at pumping issues with multiple condensers and pumps. One of our most-received questions …
Parallel Pumping in Condenser Applications: Automatic Differential Pressure Control (Part 3)
Chilled water condensers are normally operated as constant-flow devices and the pumps serving them are constant-speed. Why would you ever use a variable-speed drive for …
Parallel Pumping in Condenser Applications: Limiting the Flow Rate (Part 2)
In part 1 of this series we offered an example condenser water pumping system. The design of this example is 800 GPM per condenser for a …
Parallel Pumping in Condenser Applications (Part 1)
Applying a single constant-speed pump for each condenser in a chilled water application is a normal design for the HVAC engineer. The chiller manufacturers suggest …
Cooling Tower Design to Save the Planet: Part 4 of 4 – Something for Everyone
New water-saving and energy-saving cooling tower designs come with concerns about change. From the owner to the engineer to the contractor, the question becomes, “Why …
Cooling Tower Design to Save the Planet: Part 3 of 4 – Save Energy
We understand the tremendous water savings available with the information provided in Part 1 & Part 2 of this cooling tower series. There is more …
Cooling Tower Design to Save the Planet: Part 2 of 4 – Cycles of Concentration
The combination of water usage and energy usage in open loop cooling towers are a significant cost to owners. Owners are faced with tremendous water …
Cooling Tower Design to Save the Planet: Part 1 of 4 – Drift Eliminators
The combination of water usage and energy usage in open-loop cooling towers is a significant cost to owners. There are ways to reduce the waste …
Open Cooling Tower Pump Suction Piping Part 3
We continue to look at air issues and swirling issues in this third segment of cooling tower pump suction piping. We also provide you …
Open Cooling Tower Pump Suction Piping Part 2
Centrifugal pumps find open cooling tower applications are the toughest duty there is in hydronic cooling systems. We are always concerned about the pressure at …