A tube-in-tube thermophotovoltaic generator Page: 4 of 20
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A TUBE-IN-TUBE THEIMOPHOTOVOLTAIC GENEIATOR
CROSS-REF EREN(- TO RELATED APPLICATIONS
The present application is bard on work performed under Iipartment of Energy
Cornct DE-AC12-765N0005Z, ated-to-appl-ation--( OE-ase-S-84,829)-and
S BACKGROUND OF THE INVENTION
1. field of the Invention -
The present invention relates gnerally to the field of direct enegy conversion. More
spe:fically, the present invention rela=s to a thermophotovoltaic genera-r system that converts
enegy from photons-emitted from a -ated radiator into electricity.
2. Description of the Relatekd Ar
Thermophotovoltaic (TPV) en gy conversion is an alternative tc more traditional forms -
of -ectrical energy production using -xbomachinery. TPV energy convrsion, like other direct
enegy conversion systems, requiires n moving parts. Instead, TPV enegy conversion uses low
15" bangap semiconductor cells that arn "tuned" to the long wayelengc photons produced by
radators heated to between 100"0*F zd 3000*F. The low bandgap semiconductor cells used
fo: TPV energy conversion are. siminz in design to higher bandgap soir (photovoltaic) cells.
Recent improvements im lpv >andgap cell performance and inoton spectral control
tezmiques have allowed for thie possibility of developing efficient, ost competitive energy
203 cciversion devices, as described b- '.F Baldasaro et al., .Experimeal Assessment of Low
Tenperature Voltaic Energy Cionverton, .AIP Conference Proceeding. 321, pp. 29-43, 1994.
Fc example, TPV devices are, currnly being developed for vehicle. 3s well as for portable
pu;er generation, as described sby I Fraas et al., Electric Power Procction using New GaSb
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Ashcroft, J.; Campbell, B. & Depoy, D. A tube-in-tube thermophotovoltaic generator, patent, December 31, 1996; United States. (digital.library.unt.edu/ark:/67531/metadc710952/m1/4/: accessed November 14, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.