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

Award Information
Agency:
Department of Defense
Branch
Missile Defense Agency
Amount:
$99,652.00
Award Year:
2007
Program:
SBIR
Phase:
Phase I
Contract:
W9113M-07-C-0021
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:
Zhimin Hu
President
(401) 728-6488
cryowave@gmail.com
Business Contact:
Zhimin Hu
President
(401) 728-6488
cryowave@gmail.com
Research Institute:
n/a
Abstract
The objective of this program is to demonstrate and miniaturize a new type of cryogenic expander, thermoacoustic expander (TAE), for space cryocoolers which provide the cooling power less than 50 mW and operate in the low temperature range between 40K and 10K for cooling SWIR, MWIR, and LWIR surveillance and interceptor systems. TAEs employ high energy acoustic waves generated with absolutely no mechanical moving parts at the cold expander to produce efficient cooling over a wide temperature range. The TAE can replace more conventional complex mechanical moving part turbines or piston expanders as well as Joule Thomson expanders. The novel expander is applicable to cooling multiple sensors or focal planes especially if they must be vibrationally decoupled from the host vehicle, and allowes for efficient integration of a low mass cold head with remote and/or numerous objects to be cooled. In phase I, a proof of concept unit will be designed, fabricated and tested.

* information listed above is at the time of submission.

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