Emittance theory for thin film selective emitter
- NASA Lewis Research Center, Cleveland, Ohio 44135 (United States)
- School of Technology, Kent State University, Kent, Ohio 44242 (United States)
Thin films of high temperature garnet materials such as yttrium aluminum garnet (YAG) doped with rare earths are currently being investigated as selective emitters. This paper presents a radiative transfer analysis of the thin film emitter. From this analysis the emitter efficiency and power density are calculated. Results based on measured extinction coefficients for erbium-YAG and holmium-YAG are presented. These results indicate that emitter efficiencies of 50% and power densities of several watts/cm{sup 2} are attainable at moderate temperatures ({lt}1750 K). {copyright} {ital 1995} {ital American} {ital Institute} {ital of} {ital Physics}.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 165960
- Report Number(s):
- CONF-940101--
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 321; ISSN 0094-243X; ISSN APCPCS
- Country of Publication:
- United States
- Language:
- English
Similar Records
Emittance theory for thin film selective emitter
The effect of thickness and temperature on the performance of thin film selective emitters for thermophotovoltaic applications
Radiative performance of rare earth garnet thin film selective emitters
Conference
·
Mon Aug 01 00:00:00 EDT 1994
·
OSTI ID:6776342
The effect of thickness and temperature on the performance of thin film selective emitters for thermophotovoltaic applications
Book
·
Sat Dec 30 23:00:00 EST 1995
·
OSTI ID:163317
Radiative performance of rare earth garnet thin film selective emitters
Journal Article
·
Wed Jan 04 23:00:00 EST 1995
· AIP Conference Proceedings
·
OSTI ID:165962