A Compact, Passive, Cryogenic Cooling Unit for Shipboard Environments

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$79,888.00
Award Year:
2012
Program:
SBIR
Phase:
Phase I
Contract:
N00024-12-P-4304
Agency Tracking Number:
N121-060-0668
Solicitation Year:
2012
Solicitation Topic Code:
N121-060
Solicitation Number:
2012.1
Small Business Information
Sierra Lobo, Inc.
102 Pinnacle Drive, Fremont, OH, -
Hubzone Owned:
N
Socially and Economically Disadvantaged:
Y
Woman Owned:
N
Duns:
928298983
Principal Investigator:
Philip Putman
Senior Research Scientist
(419) 499-9653
pputman@sierralobo.com
Business Contact:
George Satornino
President and CEO
(419) 499-9653
gsatornino@sierralobo.com
Research Institution:
Stub




Abstract
The Navy has stated a need for a backup cryogenic cooling method for shipboard superconducting systems. The cooling method must be as compact as practical and should operate without consumables even if power is lost for an extended period. Ideally, the backup cooling method should take advantage of the energy associated with a phase change. One known compound has a solid-to-liquid phase transition within the temperature range of interest (at 77 K) and remains a liquid up to and above room temperature. The compound presents no unusual hazards and is commercially available. Despite its apparent promise, the compound has not been previously explored for use in cryogenic applications. Sierra Lobo proposes to develop a backup Cryogenic Cooling Unit (CCU) using the compound. In the CCU, the energy storage medium is completely enclosed, does not need replenishment, and is storable at atmospheric pressure at room temperature. While power is available, helium gas is cooled to cryogenic temperatures by a dedicated cryocooler and circulated through tubes embedded in the energy storage medium. When power is lost, valves switch the flow through the heat exchanger from the dedicated cryocooler to the superconducting equipment"s cooling loop to deliver cooling power.

* information listed above is at the time of submission.

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