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Title: Specular side reflectors for high efficiency thermal-to-optical energy conversion

Abstract

The performance of incandescent light bulbs and thermophotovoltaic devices is fundamentally limited by our ability to tailor the emission spectrum of the thermal emitter. While much work has focused on improving the spectral selectivity of emitters and filters, relatively low view factors between the emitter and filter limit the efficiency of the systems. In this work, we investigate the use of specular side reflectors between the emitter and filter to increase the effective view factor and thus system efficiency. Using an analytical model and experiments, we demonstrate significant gains in efficiency (>10%) for systems converting broadband thermal radiation to a tailored spectrum using low-cost and easy-to-implement specular side reflectors.

Authors:
ORCiD logo; ; ;
Publication Date:
Research Org.:
Energy Frontier Research Centers (EFRC) (United States). Solid-State Solar-Thermal Energy Conversion Center (S3TEC); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1432430
Alternate Identifier(s):
OSTI ID: 1502493
Grant/Contract Number:  
FG02-09ER46577; SC0001299
Resource Type:
Published Article
Journal Name:
Optics Express
Additional Journal Information:
Journal Name: Optics Express Journal Volume: 26 Journal Issue: 10; Journal ID: ISSN 1094-4087
Publisher:
Optical Society of America
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 30 DIRECT ENERGY CONVERSION; absorption filters; infrared radiation; optical properties; photometry; radiative transfer; visible light

Citation Formats

Leroy, Arny, Bhatia, Bikram, Zhao, Lin, and Wang, Evelyn N. Specular side reflectors for high efficiency thermal-to-optical energy conversion. United States: N. p., 2018. Web. doi:10.1364/OE.26.00A462.
Leroy, Arny, Bhatia, Bikram, Zhao, Lin, & Wang, Evelyn N. Specular side reflectors for high efficiency thermal-to-optical energy conversion. United States. doi:10.1364/OE.26.00A462.
Leroy, Arny, Bhatia, Bikram, Zhao, Lin, and Wang, Evelyn N. Mon . "Specular side reflectors for high efficiency thermal-to-optical energy conversion". United States. doi:10.1364/OE.26.00A462.
@article{osti_1432430,
title = {Specular side reflectors for high efficiency thermal-to-optical energy conversion},
author = {Leroy, Arny and Bhatia, Bikram and Zhao, Lin and Wang, Evelyn N.},
abstractNote = {The performance of incandescent light bulbs and thermophotovoltaic devices is fundamentally limited by our ability to tailor the emission spectrum of the thermal emitter. While much work has focused on improving the spectral selectivity of emitters and filters, relatively low view factors between the emitter and filter limit the efficiency of the systems. In this work, we investigate the use of specular side reflectors between the emitter and filter to increase the effective view factor and thus system efficiency. Using an analytical model and experiments, we demonstrate significant gains in efficiency (>10%) for systems converting broadband thermal radiation to a tailored spectrum using low-cost and easy-to-implement specular side reflectors.},
doi = {10.1364/OE.26.00A462},
journal = {Optics Express},
number = 10,
volume = 26,
place = {United States},
year = {2018},
month = {4}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1364/OE.26.00A462

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Cited by: 3 works
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