Thermal Management for Space Based High Energy Lasers

Award Information
Agency:
Department of Defense
Branch
Missile Defense Agency
Amount:
$99,951.00
Award Year:
2004
Program:
SBIR
Phase:
Phase I
Contract:
FA9453-04-M-0244
Award Id:
69465
Agency Tracking Number:
B041-005-1481
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
3267 Progress Drive, Orlando, FL, 32826
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
608777798
Principal Investigator:
Daniel Rin
President
(407) 384-7840
dan@rinitech.com
Business Contact:
Daniel Rini
President
(407) 384-7840
dan@rinitech.com
Research Institution:
n/a
Abstract
In the proposed SBIR effort RTI will investigate an innovative cooling approach to dissipate the high heat fluxes generated by diode-pumped solid-state laser (SSL) systems. SSL systems require efficient heat transfer techniques that are capable of managing high heat fluxes and high transient loads (laser "on" vs laser "off"). Existing water-based micro-channel cooling technology is not suited for deployment of high-power SSL's in space due to high system weight. Existing space-qualified heat pipe cooling technologies are not capable of handling the heat fluxes of 100-350W/cm2 generated by the laser diodes. RTI's cooling approach dissipates the high heat flux with Evaporative Spray Cooling (ESC) technology and transports the heat via a pump loop to a thermal energy storage (TES) unit featuring enhanced phase change material encapsulated in a porous graphite matrix. TES is the key technology that enables a laser operating heat load an order of magnitude greater than the ultimate heat rejection rate to space. RTI will perform sub-scale demonstrations to determine feasibility, and provide a conceptual design for a 1kWo SSL system with traceability to a 100kWo system. If shown to be feasible, the proposed cooling techniques can provide high heat flux thermal management to space based solid-state lasers with acceptable weight impacts to the spacecraft.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government