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Research on Small Tube Copper Coils Presages Economical Production of High-Efficiency Air Conditioners

New York, NY (September 30, 2010) — The International Copper Association (ICA) today announced recent research results for heat exchanger coils made with small-diameter copper tubes. Research results from a Chinese small-diameter copper tube research consortium as well as published articles from Chinese OEMs form a foundation for the development of air conditioning products that use less material and are more economical than those products made with conventional tubes.

Lab Tests Prove that Microgrooves Greatly Increase Local Heat Transfer Coefficients Inside Small Tubes of Copper, Says International Copper Association

New York, NY (October 29, 2010) — One of the most exciting recent developments in heat exchanger coil design is the outstanding performance of microgroove-enhanced, small-diameter copper tubes. The International Copper Association (ICA) today announced laboratory test results on small-diameter copper tubes with and without enhanced inside surfaces. The results prove that grooving the inner surfaces greatly increases the local heat transfer coefficient inside such “microgroove” tubes.

Evaporator Coils with Small-Diameter Copper Tubes Deliver the Same Performance with Less Materials, Says International Copper Association

New York, NY (November 30, 2010) —  The International Copper Association (ICA) today announced that manufacturers continue to reduce materials requirements in designs of heat exchangers for air conditioning and refrigeration products through the use of MicroGroove™ technology. Products made with inner-grooved, small tubes of copper use less materials yet deliver the same performance as products made with larger tubes.

The International Copper Association Premieres MicroGroove Exhibit at AHR Expo 2011

Las Vegas NV (January 31, 2011) —  The International Copper Association (ICA) today announced the premiere showing of the MicroGroove™ Technology exhibit January 31 through February 2 at the 2011 AHR Expo in Las Vegas.

Use of Smaller Tubes Lowers Refrigerant Usage in Residential Cooling Applications, Says International Copper Association

New York, NY (January 31, 2011) — The International Copper Association (ICA) today announced research on the benefits of using smaller diameters copper tubes in heat-exchanger coils. As the tube size was reduced in various air conditioners from a major OEM, less refrigerant and less materials were required to deliver the same performance.

Two Webinars on MicroGroove Technology Scheduled for June, Sponsored by the International Copper Association

New York, NY (March 31, 2011) — The International Copper Association (ICA) today announced that it will sponsor two webinars on the use of MicroGroove technology in the development of evaporator and condenser coils for air conditioning and refrigeration applications.

MicroGroove Technology Gains Market Share among Chinese OEMs

Shanghai, China (April 7, 2011) — The International Copper Association (ICA) today announced that residential air conditioning products are increasingly being fabricated using smaller diameter copper tubes, especially among OEMs based in China. 

Kelon Split Unit with MicroGroove Technology Uses Less Material and Consumes Less Energy, Says International Copper Association

New York, NY (April 22, 2011) — The International Copper Association today announced that a 2600 W split-unit, room air-conditioner from the Kelon Corporation uses coils made with MicroGroove™ technology. The use of smaller-diameter copper tubes in the evaporators of the split units resulted in a higher coefficient of performance while reducing the total weight of tube material.

Smaller-Diameter Round Copper Tubes Minimize Refrigerant Volume Compared to Flat Extrusions, Says International Copper Association

New York, NY (May 16, 2011) — The International Copper Association today announced that heat exchangers made using MicroGroove™ copper tubes use less refrigerant than comparable coils made from extruded aluminum tubes with multiple channels. The difference is that the round tubes obviate the large header volume associated with flat tubes. Reduction of refrigerant volume is an important design criterion in today’s environmentally conscious marketplace.

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