A high-temperature narrowband selective emitter for Solar Thermophotovoltaic systems

2016 ◽  
Author(s):  
Zhipeng Hu ◽  
Fen Liu ◽  
Yuan Zhang ◽  
Sailing He
Keyword(s):  
High Temperature ◽  
Selective Emitter ◽  
Thermophotovoltaic Systems

Ceramic IR Emitter with Spectral Match to GaSb PV Cells for TPV

2013 ◽  
Vol 1493 ◽  
pp. 11-22 ◽  
Author(s):  
Lewis M. fraas ◽  
Kuanrong Qiu
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
High Temperature ◽  
Large Volume ◽  
Selective Emitter ◽  
Spectral Selectivity ◽  
Cell Conversion ◽  
Commercial Market ◽  
History Of ◽  
Spectral Match

ABSTRACTA high temperature ceramic selective emitter for thermophotovoltaic (TPV) electric generators is described with a spectral match to GaSb IR cells. While solar cells generate electricity quietly and are lightweight, traditional solar cells are used with sunlight and only generate electricity during the day. Workers at JX Crystals invented the GaSb IR cell as a booster cell to demonstrate a solar cell conversion efficiency of 35%. JX Crystals now makes these IR cells. In TPV, these cells can potentially be used with flame heated ceramic emitters to generate electricity quietly day and night. One of the most important requirements for TPV is a good spectral match between the ceramic IR emitted and the IR PV cells. The first problem is to find, demonstrate, and integrate a doped ceramic IR emitter with a spectral match to these GaSb cells. Recently, nickel oxide and cobalt oxide doped MgO-based ceramics have been shown experimentally and theoretically to have spectral selectivity but no attempts have been made to integrate these ceramic IR emitters into a fully operational TPV generator. Herein, we review the history of TPV and note that a key to future progress will be the integration of an appropriate ceramic emitter with cells and a burner to demonstrate an operational TPV generator. Integrating TPV into a residential boiler is discussed as a potential future large volume commercial market.

Wavelength Selective Emitting Materials Using High-Temperature Photonic Structures

2009 ◽  
Vol 1162 ◽  
Author(s):  
Yong Sung Kim ◽  
Shawn-Yu Lin
Keyword(s):  
Energy Transfer ◽  
High Temperature ◽  
Radiative Energy ◽  
Light Sources ◽  
Selective Emitter ◽  
Photonic Structures ◽  
Radiative Energy Transfer ◽  
High Efficient ◽  
Spectral Control ◽  
Photon Recycling

AbstractRecently, wavelength selective emitting materials have attracted extensive interest due to their potential of high optical-to-electricity conversion efficiency for thermal photovoltaic (TPV) cells and realizing high efficient incandescent light sources. A substantial increase in spectral control over thermal radiation and photon recycling can accomplish this objective by the development of high-temperature photonic structures (HTPS) that simultaneously suppress unwanted radiation and enhance emission in a desirable wavelength range. In this paper, we shall review the properties of HTPS as a wavelength selective emitter, the radiative energy transfer relation in real devices, and photon recycling scheme using wavelength selective filters.

scholarly journals High-Temperature Selective Emitter Design and Materials: Titanium Aluminum Nitride Alloys for Thermophotovoltaics

2019 ◽  
Vol 11 (44) ◽  
pp. 41347-41355 ◽  
Author(s):  
Nari Jeon ◽  
David J. Mandia ◽  
Stephen K. Gray ◽  
Jonathan J. Foley ◽  
Alex B. F. Martinson
Keyword(s):  
High Temperature ◽  
Aluminum Nitride ◽  
Selective Emitter ◽  
Titanium Aluminum ◽  
Nitride Alloys ◽  
Titanium Aluminum Nitride

Selective emitter with core–shell nanosphere structure for thermophotovoltaic systems

Energy ◽  
2022 ◽  
Vol 239 ◽  
pp. 121884
Author(s):  
Caifeng Meng ◽  
Yunpeng Liu ◽  
Zhiheng Xu ◽  
Hongyu Wang ◽  
Xiaobin Tang
Keyword(s):  
Core Shell ◽  
Selective Emitter ◽  
Thermophotovoltaic Systems

Directional Solidification and Characterization of Al2O3/Er3Al5O12 Eutectic In Situ Composite by Laser Zone Remelting

2010 ◽  
Vol 654-656 ◽  
pp. 1347-1350 ◽  
Author(s):  
Hai Jun Su ◽  
Jun Zhang ◽  
Yang Fang Deng ◽  
Kan Song ◽  
Lin Liu ◽  
...  
Keyword(s):  
High Temperature ◽  
Directional Solidification ◽  
Laser Scanning ◽  
Growth Characteristic ◽  
High Rate ◽  
Full Density ◽  
In Situ Composites ◽  
Selective Emitter ◽  
Binary Eutectic

Directionally solidified (DS) oxide eutectic in situ composites are attracting increasing attention because of their unique properties and potential applications to high temperature structural materials, optical or electronic devices. Among the alumina-based eutectic composites, DS Al2O3/Er3Al5O12(EAG) eutectic is considered to be promising candidate for use as selective emitter at high temperature. In this work, eutectic in situ composites of Al2O3/EAG rods having smooth surface and full density are successfully prepared by directional solidification using the laser zone remelting method, aiming to investigate the growth characteristic of this novel binary eutectic under high temperature gradient. The microstructure is investigated by scanning electron microscopy (SEM), energy disperse spectroscopy (EDS) and X-ray diffraction (XRD). The Al2O3/EAG eutectic presents a very fine irregular network structure consisting of only -Al2O3 and Er3Al5O12 phases without grain boundaries and amorphous phases between interfaces. The eutectic interphase spacing is strongly dependent on the laser scanning rate, rapidly decreasing at the sub-micron levels for the samples grown at high rate. Furthermore, the microstructural formation and evolution of the composite are analyzed and discussed.

Influence of Thermo-Mechanical Processing on the Microstructure of Beryllia Dispersed Nickel Alloys

1973 ◽  
Vol 31 ◽  
pp. 184-185
Author(s):  
M.S. Grewal ◽  
S.A. Sastri ◽  
N.J. Grant
Keyword(s):  
High Temperature ◽  
Nickel Alloys ◽  
Thermomechanical Processing ◽  
Cold Work ◽  
High Temperature Strength ◽  
Strengthening Effect ◽  
Mechanical Processing ◽  
Uniform Dispersion ◽  
Oxide Particles ◽  
Nickel Base

Currently there is a great interest in developing nickel base alloys with fine and uniform dispersion of stable oxide particles, for high temperature applications. It is well known that the high temperature strength and stability of an oxide dispersed alloy can be greatly improved by appropriate thermomechanical processing, but the mechanism of this strengthening effect is not well understood. This investigation was undertaken to study the dislocation substructures formed in beryllia dispersed nickel alloys as a function of cold work both with and without intermediate anneals. Two alloys, one Ni-lv/oBeo and other Ni-4.5Mo-30Co-2v/oBeo were investigated. The influence of the substructures produced by Thermo-Mechanical Processing (TMP) on the high temperature creep properties of these alloys was also evaluated.

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