High Temperature Superconductor Quick Disconnect Navy SBIR FY2006.2 Sol No.: Navy SBIR FY2006.2 Topic No.: N06-158 Topic Title: High Temperature Superconductor Quick Disconnect Proposal No.: N062-158-0048 Firm: Creare Inc. P.O. Box 71 Hanover, New Hampshire 03755 Contact: Anthony Dietz Phone: (603) 643-3800 Web Site: www.creare.com Abstract: Superconducting degaussing, propulsion and power systems offer potential weight, size and performance advantages over conventional systems. High temperature superconductors enable superconducting operation at higher temperatures, reducing the size and complexity of the cooling system. Many of the required technologies for these systems are commercially available. However, new connector technology is required for such systems to be viable in the operation environment of a Navy ship, where routine maintenance and rapid damage repair will necessitate the disconnection and replacement of system components. Creare proposes a High Temperature Superconductor Quick Disconnect (HTSQD), which combines a demountable HTS joint with minimal electrical resistance with Creare's proven and patented U-Guard cryogenic seal. Our design goals are to minimize electrical resistance, minimize heat leak, and maximize operability, reliability and maintainability. Furthermore, the connector design will be guided by a system-level analysis. In Phase I we will prepare a preliminary design of the HTSQD and we will demonstrate its feasibility through tests and analyses. In Phase II we will fabricate a prototype connector and measure its performance. Benefits: Our proposed connector solution will remove one of the key technical hurdles facing the introduction of superconducting systems into Navy ships. Superconducting technology has the potential to reduce the size, weight and cost of certain systems such as degaussing systems, propulsion motors and power electronics. Our proposed design approach has the following advantages: it is based on proven technology, it considers the system wide implications of each design decision, and it will address the important considerations of operability, maintainability, and reliability. Return