Miniaturization of Thermoacoustic Expander for 50 mW Recuperative Coolers Run Below 40 K

Award Information
Agency:
Department of Defense
Branch
Missile Defense Agency
Amount:
$749,287.00
Award Year:
2008
Program:
SBIR
Phase:
Phase II
Contract:
W9113M-08-C-0150
Award Id:
81711
Agency Tracking Number:
B063-023-0723
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
58 Washington Street, Pawtucket, RI, 02860
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
604960323
Principal Investigator:
ZhiminHu
Principle Investigator
(401) 728-6488
cryowave@gmail.com
Business Contact:
ZhiminHu
President
(401) 728-6488
zhimin.hu@cryowave.com
Research Institute:
n/a
Abstract
The objective of this project is to develop a novel expander that can increase the efficiency of cryocoolers for IR sensors at very low temperatures and in remote cooling and across gimbal applications. Miniature Thermoacoustic Expanders (MTAE) that employ high energy acoustic waves generated with no moving parts at the cold expander to produce efficient cooling over a wide range of temperatures and reject heat to much higher temperature level. Unlike JT expanders which are irreversible and limited by their working gas to narrow temperature ranges and typically high pressure ratios, MTAE's can provide effective cooling for a range of applications even including nanoelectronic components that require very low cooling power for which conventional mechanical turbo or piston expanders are inefficient. MTAE development in Phase II will further extend the technology envelope to smaller scale prototypes and the lower operating temperature range. Successful completion of Phase II will result in the fabrication, test, and delivery of a MTAE prototype unit which is designed for a recuperative cryocooler operating with >1W of cooling power below 77K.

* information listed above is at the time of submission.

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