SiC IR emitter design for thermophotovoltaic generators
- JX Crystals Inc., 1105 12th Ave NW, Suite A2, Issaquah, Washington 98027 (United States)
- Dow Corning Corp., Midland, Michigan 48686-0994 (United States)
An improved ceramic spine disc burner/emitter for use in a thermophotovoltaic (TPV) generator is described. A columnar infrared (IR) emitter consisting of a stack of silicon carbide (SiC) spine discs provides for both high conductance for the combustion gases and efficient heat transfer from the hot combustion gases to the emitter. Herein, we describe the design, fabrication, and testing of this SiC burner as well as the characterization of the IR spectrum it emits. We note that when the SiC column is surrounded with fused silica heat shields, these heat shields suppress the emitted power beyond 4 microns. Thus, a TPV generator using GaSb photovoltaic cells covered by simple dielectric filters can convert over 30{percent} of the emitted IR radiation to DC electric power. {copyright} {ital 1996 American Institute of Physics.}
- OSTI ID:
- 285321
- Report Number(s):
- CONF-9507247--
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 358; ISSN 0094-243X; ISSN APCPCS
- Country of Publication:
- United States
- Language:
- English
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