Industrial Chillers Use Variable Speed

April 28, 2005
/ Print / Reprints /
ShareMore
/ Text Size+
Compressors with variable-speed technology can match output to the demand for cooling.
Certain manufacturing processes require careful temperature control. And in many cases, industrial chillers play a key role.

Injection molding and extrusion to form plastic shapes are examples of such processes. Plastic parts in automobiles, for example, are uniform, sturdy, fairly easy to install, and manufactured in temperature-controlled processes. In such cases, industrial chillers control the temperatures of the molds used to make the parts.

There is a bit of irony here. According to Danfoss, compressors that power industrial chillers are themselves often machined by tools whose cutting actions are cooled by industrial chillers. That is the case with the company's Maneurop hermetic compressors.

To optimize chiller capabilities, Danfoss provides industries, including chiller manufacturers, with compressors equipped with variable-speed technology.

Variable speed, when applied to a refrigeration compressor or one used for air conditioning, matches the compressor output to the demand for cooling.

"This ensures the compressor speed runs to reach the target cooling temperature, and no faster," said Jeff Staub, Danfoss application engineering manager. "This saves a lot of energy because the alternative is to introduce hot gas into the cooling circuit to control the temperature, which is simply not the most efficient method."

Variable-speed compressors run throughout the time the machinery is in use. "Although it might seem that running equipment constantly would waste energy, the contrary is true - if little energy is used, or just the right amount, then running the compressor constantly actually extends its service life by eradicating the stresses of stopping and starting."

Danfoss supplies hermetics from 1/10 hp to 70 tons. Staub said that because variable speed makes possible energy efficiency and extended compressor life, the company enhanced the design of many of its compressors to make them suitable for high-efficiency variable-speed operation over an extended capacity range.

For more information, visit www.danfoss.com.

Publication date: 05/02/2005

Did you enjoy this article? Click here to subscribe to The NEWS Magazine

Recent Articles by Peter Powell

You must login or register in order to post a comment.

Multimedia

Videos

Image Galleries

2014 MCAA Annual Convention

Scenes from the 2014 MCAA Annual Convention in Scottsdale, Ariz.

Podcasts

Kyle Gargaro, editor-in-chief of The NEWS, hosted the 2014 ACCA CEO Forum. At the event, six well-known, highly respected company executives, Gary Michel, Ingersoll Rand/Trane; Chris Nelson, Carrier Corp.; Chris Peel, Rheem Mfg. Co.; Rod Rushing, Johnson Controls; Brent Schroeder, Emerson Climate Technologies; and Doug Young, Lennox; provided individual industry outlooks and fielded questions directly from attending contractors. Listen to the entire event on the NEWSMakers podcast. Posted on April 14.

More Podcasts

THE MAGAZINE

ACHRNEWS

NEWS 04-14-14 cover

2014 April 14

Check out the weekly edition of The NEWS today!

Table Of Contents Subscribe

SERVICE CALLS POLL

Which statement on service calls best applies to your business?
View Results Poll Archive

HVACR INDUSTRY STORE

plumbing-hvac.gif
2014 National Plumbing & HVAC Estimator

Every plumbing and HVAC estimator can use the cost estimates in this practical manual!

More Products

Clear Seas Research

 

Clear Seas ResearchWith access to over one million professionals and more than 60 industry-specific publications, Clear Seas Research offers relevant insights from those who know your industry best. Let us customize a market research solution that exceeds your marketing goals.

DON'T MISS A THING

Magazine image
 
Register today for complete access to ACHRNews.com. Get full access to the latest features, Extra Edition, and more.

STAY CONNECTED

facebook icontwitter iconyoutube iconLinkedIn i con