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Ultra-efficient Thermoelectric Cooling Module for Satellite Thermal Management

Award Information

Agency:
Department of Defense
Branch:
Air Force
Award ID:
Program Year/Program:
2014 / SBIR
Agency Tracking Number:
F131-074-1553
Solicitation Year:
2013
Solicitation Topic Code:
AF131-074
Solicitation Number:
2013.1
Small Business Information
Sheetak Inc.
4020 S. Industrial Drive Suite 100 Austin, TX 78744-
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2014
Title: Ultra-efficient Thermoelectric Cooling Module for Satellite Thermal Management
Agency / Branch: DOD / USAF
Contract: FA9453-14-M-0050
Award Amount: $149,959.00
 

Abstract:

ABSTRACT: Current waste heat management technologies from satellite payload including the sensor, control and actuators, are bulky and energy inefficient because they cannot provide on-demand site-specific cooling. Fluidic systems are not desirable for satellite applications due to leakage issues. High ZT thin film thermoelectric (TFTE) devices have the potential to overcome all these issues. However, earlier attempts to integrate these TFTE devices have shown poor system performance due to suboptimal heat flux management and integration issues such as high contact resistances. Sheetak proposes to develop a TFTE module based on its nanostructured high ZT TE material and hemispherical distributed devices. Implementing a large thin film device in terms of an array of small hemispherical devices with constricted contacts can lead to a 30-fold reduction in temperature drop in the underlying substrate compared to the large thin film device. Sheetak will demonstrate high efficiency on-demand and site specific cooling with system level ZT>1 which has never been demonstrated before for waste heat management from electronics/optoelectronics devices. The goal of this SBIR is to develop an actual satellite payload waste heat management system with hotspot heat flux>200 W/cm2, hotspot temperature<76 C and component power>50 W. BENEFIT: Higher performance computers, Improvement in sensors, actuators, communication hardware. Also, the technology can be used to generate power for the onboard electronics on a satellite. In general, the proposed technology can be used for refrigeration, heat pumping and waste heat to electricity generation

Principal Investigator:

Uttam Ghoshal
CEO/CTO
(512) 413-8955
ghoshal@sheetak.com

Business Contact:

Himanshu Pokharna
Vice President Business Development
(408) 464-8007
pokharna@sheetak.com
Small Business Information at Submission:

Sheetak Inc.
4020 S. Industrial Drive Suite 100 Austin, TX 78744-

EIN/Tax ID: 261553040
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No