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Copper Micro-Channel tube for HVAC Applications


Micro-channel heat exchangers are the latest trend in heating and cooling technologies providing up to 40% increase in efficiency. Most micro-channel heat exchangers on the market today are constructed out of aluminum. An inventor here at Ohio University has found a way to engineer these tubes out of copper.

Copper micor channel tube method
Copper micor channel tube

This invention involves a method to produce a copper micro-channel tube, and effectively create a more long-term and durable heat exchange system for the commercial and residential HVAC industries. Formation of a copper micro-channel tube is an engineering challenge as compared to aluminum micro-channel tubes due to the increased temperatures required. Dr. Kraft has successfully developed an apparatus capable of producing the copper micro-channel exchangers.

OU Ref: 06032 View PDF

Issued Patents :
US 8,191,393
CA 2,672,098


Dr. Kraft received his Ph.D. in mechanical engineering from Rensselaer Polytechnic Institute (RPI) in 1994. He received an MSME from RPI, and BSME from Union College in Schenectady, NY. Dr. Kraft performs research in metal forming, mechanical and physical metallurgy, process simulation and development, mechanical testing, and mechanical behavior of materials. He has received more than $850,000 in research funding, and has 29 journal and conference papers, two handbook chapters and four US patents.