HVAC Breaking News

Jan. 4, 2007: ARTI Releases Report on Flattened-Tube Heat Exchangers

January 4, 2007
/ Print / Reprints /
ShareMore
/ Text Size+

ARLINGTON, Va. - A newly released Air-Conditioning and Refrigeration Technology Institute (ARTI) report characterizes how flattened-tube heat exchangers function under various environmental conditions and pressures.

The study, “An Assessment of the State-of-the-Art and Potential Design Improvements, for Flat-tube Heat Exchangers in Air-Conditioning and Refrigeration Applications,” found that replacing traditional round tube heat exchangers with flattened tube technology may enable the air conditioning industry to provide comfort cooling using a new refrigerant, while increasing efficiency, but not the system’s size.

“Flattened tube heat exchangers have received much attention as a possible replacement to traditional round tubes, but until now little research has been done on the thermal-hydraulic performance of flattened tubes under wet, dry, and frosted conditions,” said Elizabeth Jones, a project manager with ARTI. “This research report addresses the fundamental science needed to allow the air conditioning industry to engineer products using this technology.”

According to the report, the geometry of a flattened tube allows for improved heat transfer and thermal performance; increased coil and overall unit efficiencies; substantial refrigerant charge reduction; and more compact and reduced coil size.

In the ARTI report, University of Illinois researchers provided analysis, modeling, and interpretation of air-side, thermal-hydraulic performance for flattened tube heat exchangers under wet and frosted surface conditions. They made design recommendations to help improve the performance of plain, wavy, strip, and louvered fins for flattened tube heat exchangers. They also conducted a full assessment of the air-side thermal-hydraulic performance of flattened, round, and finned heat exchangers. In addition, researchers developed a new method to provide data on retention and drainage of water from the air-side surface of flattened tube heat exchangers under a number of operating conditions.

Publication date: 01/01/2007

 

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 World Energy Engineering Congress

Scenes from the 2014 World Energy Engineering Congress in Washington, D.C.

Podcasts

NEWSMakers: Kari Arfstrom

Kari Arfstrom, executive director of the HVACR Workforce Development Foundation, talks about the upcoming HVACR & Mechanical Conference. Posted on Jan. 23.

More Podcasts

ACHRNEWS

NEWS 01-26-15 cover

2015 January 26

Check out the weekly edition of The NEWS today!

Table Of Contents Subscribe

Regional Standards

With regional standards for a/c equipment going into effect in 2015, how do you think it will impact the industry?
View Results Poll Archive

HVACR INDUSTRY STORE

2015.jpg
2015 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