SiC IR emitter design for thermophotovoltaic generators
作者:
Lewis M. Fraas,
Luke Ferguson,
Larry G. McCoy,
Udo C. Pernisz,
期刊:
AIP Conference Proceedings
(AIP Available online 1996)
卷期:
Volume 358,
issue 1
页码: 488-494
ISSN:0094-243X
年代: 1996
DOI:10.1063/1.49707
出版商: AIP
数据来源: AIP
摘要:
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% of the emitted IR radiation to DC electric power. ©1996 American Institute of Physics.
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