Efficient and Lightweight Cryogenic Gas Heat Exchanger Navy SBIR FY2012.2 Sol No.: Navy SBIR FY2012.2 Topic No.: N122-128 Topic Title: Efficient and Lightweight Cryogenic Gas Heat Exchanger Proposal No.: N122-128-0018 Firm: International Mezzo Technologies, Inc 7167 Florda Blvd Baton Rouge, Louisiana 70806 Contact: Charles Becnel Phone: (225) 706-0191 Web Site: http://www.mezzotech.com Abstract: Mezzo Technologies fabricates high performance micro tube heat exchangers. In this proposal, Mezzo proposes to fabricate a heat exchanger to interface between helium, which is the working fluid used to cool a variety of superconducting components on Navy vessels in the future that will require cryogenic cooling, and cold neon gas, which is supplied by a Reverse Brayton cryocooler. Mezzo's approach, which builds upon a previous effort for the Missile Defense Agency as well as continuously evolving manufacturing capablity will result in a unit which can cool 20 grams/second of helium at 2000 kPa, with an effectiveness of greater than 90%, very low pressure drops, and with a weight of approximately 10 pounds. The material costs associated with this unit will be substantially less than $1k, and the acquisition costs will meet the goal specified in the solicitation. The unit will also be compact and extremely robust. Benefits: The benefits of superconducting motors are expanding into more and more applicaitons. In all cases, cryocoolers are required, and in cases where an interface heat exchanger is needed (such as described in this proposal), the availability of a low cost, high performance cryocooler heat exchanger will be of significant value. Return