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New York, NY (July 15, 2010) — The International Copper Association (ICA) today announced a new heat exchanger coil technology that benefits from smaller diameter copper tubes. The new product designs and associated manufacturing processes are a culmination of years of research.

Heat transfer from the refrigerant to the tube wall is more effective inside copper tubes with diameters smaller than the conventional diameter. Consequently, coils can be made less bulky and air conditioners with higher energy efficiency can be made smaller and lighter.

New York, NY (August 2, 2010) — The International Copper Association (ICA) today announced performance analysis results for heat exchanger coils with small diameter copper tubes. The coil designs were developed with the aid of design software that optimizes copper tubes and advanced fins for both condensers and evaporators in residential air-conditioner applications. The performance analysis showed that coils designed with small tubes require significantly less tube and fin material than conventional designs.

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.

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.

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.

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.

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.

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.

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. 

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.