GreenChill Catches Secondary-Loop Fever

December 1, 2008
/ Print / Reprints /
ShareMore
/ Text Size+
An example of secondary loop technology in a supermarket. (Courtesy of The Dow Chemical Company.)

ORLANDO, Fla. - Companies joining the Environmental Protection Agency’s (EPA’s) GreenChill initiative are called upon to demonstrate ways in which they are helping reduce the amount of refrigerant used in a supermarket, as one of their objectives. One way to do that, according to GreenChill, is to move away from direct-expansion systems into other alternatives, including secondary loops.

Apparently that is having an impact. During the FMI Energy and Technical Services Conference, representatives of Dow Chemical Co. held a press briefing to announce that the company had become part of GreenChill, and it is “supplying more Dowfrost™ heat transfer fluid for secondary loop refrigeration jobs during 2008 than ever before.”

According to Harold Nicoll, communications leader for Dow, “A substantial increase in construction of food coolers using secondary loop technology is driving demand. Supermarket owners and operators are interested in secondary loop refrigeration because of reduced refrigerant charges and system leaks as well as increased energy efficiency.”

Nicoll said secondary loop demand “is most pronounced in North America.” He said one Dow customer is currently involved in 100 such projects. In the secondary loop approach, the charge of the primary refrigerant (typically an HFC such as R-404A or R-507) can be reduced by 60 percent or more if it is used to refrigerate a secondary coolant which is then distributed to the individual food display cases.

For that loop, Dow is promoting its Dowfrost “because ingredients in Dowfrost are (identified as) ‘generally regarded as safe’ (GRAS) by the U.S. Food and Drug Administration,” said Nicoll. He also said the product is registered with the National Sanitation Foundation and is acceptable for use as a heat transfer fluid where there is possibility of incidental food contact.

Publication date: 12/01/2008

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

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

NEWSmakers: Julian Scadden

Training is an ongoing process. Julian will discuss how you can generate maximum return on time and energy invested training by following a three part process. Listen to this podcast to get expert tips on training, tracking and follow up. 

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