Newsline

ASHRAE Investigates R-22 Alternatives

August 24, 2002
/ Print / Reprints /
ShareMore
/ Text Size+
HONOLULU, HI — Models that would simulate the performance of high-efficiency equipment with R-22 alternatives will be developed through research funded by the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE).

The project, approved at ASHRAE’s 2002 Annual Meeting, is 1173-TRP, “Improvements and Validation of Unitary Air Conditioner and Heat Pump Simulation Models for R-22 and HFC Alternatives at Off-Design Conditions.” The principle investigator is Eckhard Groll at Purdue University.

ASHRAE says that the models would accurately predict off-design refrigerant conditions and system performance trends. The society also says that increased condenser size (relative to the evaporator) in higher efficiency designs makes good charge management even more important.

“Charge models that can predict at what conditions a system will begin to floodback refrigerant to the compressor or operate at excessive superheat, subcooling, or pressure ratios are important to avoid damaging operating conditions,” the society stated.

Publication date: 08/26/2002

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

Recent Articles by James Siegel

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