Home
Global Supplier Directory
APPLIANCE Engineer
Supplier Solutions
APPLIANCE Line
Whitepaper Library
Calendar of Events
Association Locator
Contents Pages
Market Research
Subscription Center


 
Daily News

ARTI Research May Improve Air-Conditioning Efficiency
Dec 18, 2006
 Printable format
 Email this Article
 Search

ARI (Air-Conditioning and Refrigeration Institute) said today 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 without increasing the system’s size.

An Air-Conditioning and Refrigeration Technology Institute (ARTI) report characterizes how flattened-tube heat exchangers function under various environmental conditions and pressures.

“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, which provided the funding for this project under its HVAC&R Research for the 21st Century program. “This research report addresses the fundamental science needed to allow the air conditioning industry to engineer products using this technology.”

The geometry of a flattened tube, compared with the traditional round tube heat exchanger, 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 provide analysis, modeling, and interpretation of air-side, thermal-hydraulic performance for flattened tube heat exchangers under wet and frosted surface conditions. They make design recommendations to help improve the performance of plain, wavy, strip and louvered fins for flattened tube heat exchangers. They conduct 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.

To read the final report, “An Assessment of the State-of-the-Art and Potential Design Improvements, for Flat-tube Heat Exchangers in Air-Conditioning and Refrigeration Applications,” go to http://www.arti-research.org/research/completed/finalreports/20021-final.pdf.

Back to Daily News

 

Daily News

...........................................................

Oct 30, 2014: Whirlpool Corp. reports strong third-quarter

Oct 30, 2014: Statistical Portrait of the European Appliance Industry Released by Appliance Magazine

Oct 30, 2014: New Whirlpool acquisition Indesit reports profit for year so far

Oct 30, 2014: Consumer Confidence Index rebounds in October

Oct 29, 2014: New home sales up slightly in September 2014

More Daily News>>

RSS Feeds
.........................................................
Appliance Industry
Market Research

...........................................................

October 2014: Portrait of the European Appliance Industry
September 2014: Appliance Industry Focus: HVAC
June 2014: Appliance Magazine Market Insight: April 2014
May 2014: Appliance Magazine Market Insight: March 2014




 
Contact Us | About Us | Subscriptions | Advertising | Home
UBM Canon © 2014  

Please visit these other UBM Canon sites

UBM Canon Corporate | Design News | Test & Measurement World | Packaging Digest | EDN | Qmed | Plastics Today | Powder Bulk Solids | Canon Trade Shows