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Shockwave Fabrication of High Performance Thermoelectrics

Award Information

Agency:
National Aeronautics and Space Administration
Branch:
N/A
Award ID:
90873
Program Year/Program:
2009 / STTR
Agency Tracking Number:
080035
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
TXL Group, Inc.
2000 Wyoming Avenue El Paso, TX 79903-3501
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2009
Title: Shockwave Fabrication of High Performance Thermoelectrics
Agency: NASA
Contract: NNX09CF76P
Award Amount: $100,000.00
 

Abstract:

Thermoelectric (TE) generators/refrigerators have the advantages of lack of moving parts, quiet operation, and flexibility in deployment, but their use has been limited because of their relatively low conversion efficiency. Two major loss components are conductive (phonon) heat transfer through the TE lattice and parasitic losses at fabrication interfaces. Shock wave consolidation of thermoelectric nanopowders to produce TE devices will reduce both loss sources, leading to enhanced efficiency devices. The conversion efficiency of a TE device will always be thermodynamically limited by the Carnot ratio of (Th-Tc)/Th, where Th and Tc are the temperatures of the hot and cold junctions. Present technology thermoelectric devices can provide conversion efficiencies up to a third of the Carnot limit. With the restrictions on phonon transport acruing from nanopowder consolidation, conversion efficiencies of over 50% of the Carnot limit should be possible.

Principal Investigator:

David Nemir
Principal Investigator
9155337800
david.nemir@gmail.com

Business Contact:

David Nemir
Business Official
9155337800
Small Business Information at Submission:

TXL Group, Inc.
2000 Wyoming Avenue El Paso, TX 79903

EIN/Tax ID: 260154032
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
University of Texas at El Paso
500 W. University Avenue
El Paso, TX 79968
Contact Phone: (915) 747-5680
RI Type: Nonprofit college or university