Chilled Water Cooling Systems: Explained

Learn about chilled water cooling systems and their configuration, then call MCS for your water chilled system installation and maintenance needs.

Could Chilled Water Cooling be the right for for your building?

Although it has been around for a long time, most people aren't aware of chilled water cooling. But the benefits it can provide to commercial buildings shouldn't be ignored.

Read on to learn about chilled water cooling systems and their configuration.

Chilled Water Cooling Systems - The Basics

In medium and large-sized buildings, chilled water systems are the best way to go. Theses systems cool the building by using chilled water as heat absorption. As it circulates back through the system, the refrigeration cycle removes the heat.

Chiller plants take the role of a centralized cooling system. They can cool the entire building or even several buildings from one system. You can get them in a variety of sizes, from under 5 tons, up to several hundred tons for larger complexes.

The bonus is the chiller only turns on when the reservoir reaches a certain temperature. With water having a 20x heat absorption rate to air, it takes longer to warm up. So, if the water stays within a certain temperature range, the cooler isn't running. But, the air handlers can still cool down the building. You'll see significant savings on your energy bills.

The Chiller

A typical chiller uses refrigeration to chill water in a chiller barrel. Once chilled, it passed through cooled pipes around the building and goes through a coil. Air passes over the coil, and this is where the heat exchange takes place.

The coils absorb the heat in the air, and it then passes into the water. The water then pumps back through the chiller, where it's cooled once more and it removes the heat. They can contain other HVAC equipment for heat exchange like computer room air conditioners.

This repeats as the newly cooled water flows back through the building again. The cooling cycle loops can be simple, or very complex depending on the design and age of the building. But regardless, you can control elements like pressure, velocity, and volume from a control system. This will also control the valve actuators and the pumps.

The Chilled Water Loop

The chilled water moves around the building via the chilled water loop. The water pump pushes the water around the loop through the chiller and along the pipes. This then runs through the building to the air conditioning units.

The water in the loop is chilled to around 45 °F. This is the ideal temperature for cooling, without putting stress on the chiller. Returned water will be around 54 °F.

Chilled Water Cooling Systems

Chilled water cooling systems provide a practical and energy efficient cooling. They are perfect for cooling large commercial buildings where individual control is needed. Having the air conditioning equipment in a single location makes finding and fixing any issues easier and faster.

Contact McNamara Custom Services for your water chilled system installation and maintenance needs. We pride ourselves on providing professional service with a personal touch. From preventative maintenance and repair services to complete new construction and remodelling, we have you covered.

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