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A Multi-Stage Hybrid 10 Kelvin Cooler

Award Information

Agency:
Department of Defense 		Branch:
Air Force 		Award ID:
57468 		Program Year/Program:
2002 / SBIR
Agency Tracking Number:
021NM-1662 		Solicitation Year:
N/A 		Solicitation Topic Code:
N/A 		Solicitation Number:
N/A
Small Business Information
Atlas Scientific
1367 Camino Robles Way San Jose, CA 95120-4925
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2002
Title: A Multi-Stage Hybrid 10 Kelvin Cooler
Agency / Branch: DOD / USAF
Contract: F29601-02-C-0154
Award Amount: $99,373.00
 

Abstract:

"We propose to develop a multi-stage hybrid cooler capable of providing 1 W of cooling at 10 K. To achieve the most efficient and reliable hybrid cooler possible, we propose to combine a multi-stage, linear-drive pulse tube with a low-temperaturereverse-Brayton stage. In this way we will take advantage of the strengths of each system, while minimizing their respective weaknesses. The system avoids the inherent losses associated with a regenerator at low temperature, as well as, the inefficienciesassociated with the Joule-Thompson process, by incorporating a novel turbo-expander in the low temperature reverse-Brayton stage. The use of a low-vibration, linear, compressor for the pulse-tube stage provides a large pressure ratio allowing the size andexpense of the recuperative heat exchanger to be minimized. These features result in a low-mass reverse-Brayton stage that can be fabricated reliably, at a reasonable cost, without sacrificing performance. The proposed hybrid cryocooler will achieveunprecedented efficiency below 10 K without resorting to high-unit-cost technologies such as super-critical shafts or extremely precise bearing clearances. The system will exhibit the high reliability and low vibration associated with pulse-tube andturbomachine-based reverse-Brayton systems. The result is a cryocooler that is ideally suited to cooling space-borne loads at or below 10 K. The proposed cooler can be employed in a wide variety of commer

Principal Investigator:

Ali Kashani
Program Director
4085070906
atlassci@wwc.com

Business Contact:

Ali Kashani
Program Director
4085070906
atlassci@wwc.com
Small Business Information at Submission:

Atlas Scientific
1367 Camino Robles Way San Jose, CA 95120

EIN/Tax ID: 770281491
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No