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Modeling and Experimental Validation of Radiative Heat Transfer in Porous Nanocomposites as Selective Emitters for Low Temperature Thermophotovoltaic Systems

Aljarrah, Mohannad T.
http://rave.ohiolink.edu/etdc/view?acc_num=akron1259561401

Abstract Details

2009, Doctor of Philosophy, University of Akron, Chemical Engineering.
Thermophotovoltaic, a technology that utilizes the photovoltaic effect to convert infrared radiation emitted from a hot source into electricity, is an attractive technology that can be used in applications in industrial waste heat recovery, space applications, hybrid cars, powering remote off-grid areas and many others. Emitters used in TPV systems must meet functional requirements imposed by the PV cell and structural requirements imposed by the high temperature used to achieve high density radiation. Most of the functional and structural requirements of the emitter can be realized by using a selective emitter in the fibrous form. In this research, selective emitter media made from electrospun ceramic nanofibers doped with rare-earth oxides is presented. The materials of choice are aluminum oxide for the fibers and erbium oxide as the emitting material. It is found that the fabricated emitters emit IR-radiation selectively in a range that can be effectively coupled with GaSb and InGaAs PV cells. A mathematical model is also developed based on the general equation of radiative transfer to calculate the net radiation obtained from the fabricated emitters. The model is coupled with experimentally measured optical properties to calculate the emissivity. A very satisfactory agreement is found between the theoretically calculated and the experimentally measured values of emissivity
Edward A. Evans (Advisor)
168 p.
Chemical Engineering
EMITTERS; emissivity; Erbia; SELECTIVE EMITTERS; erbium; fibers; TPV

Recommended Citations

Citations

  • Aljarrah, M. T. (2009). Modeling and Experimental Validation of Radiative Heat Transfer in Porous Nanocomposites as Selective Emitters for Low Temperature Thermophotovoltaic Systems [Doctoral dissertation, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1259561401

    APA Style (7th edition)

  • Aljarrah, Mohannad. Modeling and Experimental Validation of Radiative Heat Transfer in Porous Nanocomposites as Selective Emitters for Low Temperature Thermophotovoltaic Systems. 2009. University of Akron, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1259561401.

    MLA Style (8th edition)

  • Aljarrah, Mohannad. "Modeling and Experimental Validation of Radiative Heat Transfer in Porous Nanocomposites as Selective Emitters for Low Temperature Thermophotovoltaic Systems." Doctoral dissertation, University of Akron, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=akron1259561401

    Chicago Manual of Style (17th edition)

akron1259561401
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© 2009, some rights reserved.Creative Commons License Modeling and Experimental Validation of Radiative Heat Transfer in Porous Nanocomposites as Selective Emitters for Low Temperature Thermophotovoltaic Systems by Mohannad T. Aljarrah is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by University of Akron and OhioLINK.