SBIR-STTR Award

A Hybrid Thermal Management System for Space Electro-Optical Payloads
Award last edited on: 10/11/2011

Sponsored Program
SBIR
Awarding Agency
DOD : AF
Total Award Amount
$842,038
Award Phase
2
Solicitation Topic Code
AF103-072
Principal Investigator
Mark V Zagarola

Company Information

Creare LLC (AKA: Creare Inc~Creare Product Development LLC)

16 Great Hollow Road
Hanover, NH 03755
   (603) 640-2436
   info@creare.com
   www.creare.com
Location: Single
Congr. District: 02
County: Grafton

Phase I

Contract Number: ----------
Start Date: ----    Completed: ----
Phase I year
2011
Phase I Amount
$99,931
Advanced space-borne electro-optical payloads require cooling at temperatures of 10 to 20 K. Cooling loads for these detectors will range from 0.25 W to 1.0 W at the primary load site, with additional loads at higher temperatures. During this program, we propose to build and test a multistage hybrid cryocooler that is optimized for cooling at a primary load temperature of 10 to 20 K. The hybrid cryocooler will optimally combine the strengths of multiple cryocooler technologies. Performance predictions indicate that our hybrid cryocooler concept will result in a 200% improvement in efficiency over the current state of the art which will allow landmark reductions in payload mass. In addition to high efficiency, the system will be lightweight, extremely reliable, produce negligible vibration at the coldheads, provide remote and distributed cooling at each stage, and be broadly applicable to cooling temperatures from 10 K to 100 K. During Phase I, we plan to optimize the cryocooler design for a particular mission class. We will use existing test data and analytical models to predict the performance of both a flight cryocooler and a brassboard unit which will be tested during the Phase II project.

Benefit:
The successful completion of this program will result in the demonstration of an extremely efficient low temperature cryocooler. This type of cryocooler is ideal for cooling applications in space-based surveillance and missile defense systems. Government-funded scientific applications include space-based infrared telescopes. Commercial applications include communication satellites, superconducting instruments, hypercomputers, and Superconducting Quantum Interference Devices (SQUIDs).

Keywords:
Cryocooler, Hybrid, Turbo-Brayton, Multistage

Phase II

Contract Number: ----------
Start Date: ----    Completed: ----
Phase II year
2012
Phase II Amount
$742,107
Advanced space-borne electro-optical payloads require cooling at temperatures of 10 to 20 K. Cooling loads for these detectors will range from 0.25 W to 1.0 W at the primary load site, with additional loads at higher temperatures. During this program, we propose to build and test a multi-stage hybrid cryocooler that is optimized for cooling at a primary load temperature of 10 to 20 K. The hybrid cryocooler will optimally combine the strengths of multiple cryocooler technologies. Performance predictions indicate that our hybrid cryocooler concept will result in a 200% improvement in efficiency over the current state of-the-practice unit which will allow landmark reductions in payload mass. In addition to high efficiency, the system will be lightweight and extremely reliable, and will produce negligible vibration at the coldheads, provide remote and distributed cooling at each stage, and be broadly applicable to cooling temperatures from 10 K to 100 K. During Phase I, we optimized the cryocooler design for a particular mission class. We used existing test data and analytical models to predict the performance of both a flight cryocooler and a brassboard unit which will be tested during the Phase II project. On the Phase II project, we will test the hybrid cryocooler at cold end temperatures as low as 10 K.

Benefit:
The successful completion of this program will result in the demonstration of an extremely efficient low temperature cryocooler. This type of cryocooler is ideal for cooling applications in space-based surveillance and missile defense systems. Government-funded scientific applications include space-based infrared telescopes. Commercial applications include communication satellites, superconducting instruments, hypercomputers, and Superconducting Quantum Interference Devices (SQUIDs).

Keywords:
Cryocooler, Hybrid, Turbo-Brayton, Multistage