Generic selectors
Exact matches only
Search in title
Search in content

AFT™ Fathom Determines Cause of Failures: Emergency Cooling Water Ride-through System

Applied Flow Technology
AFT™ Fathom Determines Cause of Failures Emergency Cooling Water Ride-through System Swanson Rink

AFT™ Fathom Determines Cause of Failures: Emergency Cooling Water Ride-through System

Swanson Rink
Denver, Colorado, USA
Platinum Pipe Award Winner – Operational Benefits and Sustainability

Swanson Rink was tasked with developing a chilled water distribution system in an undisclosed data center, along with a method of providing cooling for a period of time (ride-through) if the central chilled water plant was off line for some reason. The ride-through will provide cooling for the data center for 30 minutes allowing the generator plant to start and also for the chillers to restart in the event of things such as power failure, tornadoes, etc. When the chillers are restarted and are providing chilled water to the data center cooling systems again, the storage tanks are full of warm water. At this point a set of valves open, and a small capacity charging pump starts to divert a small amount of chilled water from the main system to the storage tanks to recharge them, returning the system to its pre-emergency condition.

When engineers commissioned the cooling water storage tanks for the emergency ride-through scenario, one tank experienced unexpected negative pressure and failed, caving inwards (see Figure 1). Engineers suspected the cause to be certain valves not opening correctly, but were not able to rerun any field tests that might damage the system further. Rory Heim, mechanical engineer at Swanson Rink, used AFT Fathom to correlate to physical results seen in the field rather than numerical data.

AFT™ Fathom Determines Cause of Failures Emergency Cooling Water Ride-through System (1)

Figure 2 – AFT Fathom Model: Scenario showing tank overpressurization, triggering relief valves

He used an AFT Fathom model to determine which valve closures would result in the system failures they saw in the field and was able to identify and fix the problems which were difficult to recognize visually because of the orientation of the system components. A similar problem was encountered when recharging the tanks and the AFT Fathom model was used again to identify a valve opening issue that caused a tank to over pressurize and trigger relief valves (see Figure 2).

When asked about the benefits of AFT Fathom, Heim said, “Fathom allowed Swanson Rink to test many scenarios; avoiding further system destruction and with no unintended consequences to the building. Using the Fathom model was much more efficient than running around the mechanical room opening and closing valves to test scenarios. On the day the charging problem was discovered, six people were in the mechanical equipment room for the entire day, running tests and trying to determine the cause of the relief valve activating. Fathom allowed one person to run tests instantaneously, which is a much more efficient use of those six people’s time and the owner’s money.”

Related Articles

Related Whitepapers

10 Tips To Improve Operations Of A Salt Water Disposal Pump

In the oil and gas industry, a large amount of salt water is collected during the process of oil production. In Texas, for example, the…

Cavitation Guide

Cla-Val has the technical resources you need to design and operate a fluid handling system that is both efficient and reliable. You can visit a…

Managing Aging Plants, Equipment & Infrastructure

Solving your challenges with proven solutions Chesterton is a full-solution provider for water treatment/wastewater plants and systems that are seeking to increase equipment reliability and…

Reliable Pumps for High-pressure Cleaning with Superior Handling of Abrasives and Particulates

Compact, Seal-less Pumps for Reliable Operation and Long Service Life With more than 40 years of experience serving many different industries, including major global companies,…

Comments

Leave a Reply

Your email address will not be published. Required fields are marked *

Sign up for our Newsletter!


By submitting this form, you are consenting to receive marketing emails from: Empowering Pumps & Equipment, 2205-C 7th Street, Tuscaloosa, AL, 35401, http://www.empoweringpumps.com. You can revoke your consent to receive emails at any time by using the SafeUnsubscribe® link, found at the bottom of every email. Emails are serviced by Constant Contact