Current status of thermionic conversion of solar energy

Olawole, C. Olukunle and De, Dilip Kumar and Oyedepo, Sunday Olayinka and Olawole, C. Olukunle and Joel, E. S. (2020) Current status of thermionic conversion of solar energy. Current Science, 118 (4). pp. 543-552.

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Abstract

Recent advances in scie:nce and technology of matel'iah fabrication. en&ineedna of work functions1 and 1nicromete· ~ap mac:hininc between emitter and coll ecto•· are •nakinc thet•rnionic convenion/conve~·ter (TEC) of sola•· ent~:&Y an emer&in& technology. As tlte convertet· b the li&htest of all devices with hi&}lest dil'ec:t 1•owea· conveuion den Dty (per· unit uea of the tonvertinc Jluface), it has, potential for mbstituting photo voltaic technoloa:y ton lnra:e extent and for dep· loyment i.n space ns n power· source. This article :mmmarizu the current effort!l/teclmoloa:ies in the field, and discuues their inherent merits and demerits towards realizina: tl1e coal of achievinc high convel'sion efficiency and lirnulation of performance evaluation of a .solar TEC. \Ve aho discuss the use of both rnetals and nanotnattl'ial.t, critical roles of work functions of both ttnittt'l" and collettor, collector temperature, absorptivity and emissivity of the surfaces, radiation lossH, and use of both mt'tals and nanomat_ erials in the ftfidtncy of conversion of solar ene.r·gy. \Ve further deal with the role of eorreetinc thermionic enission current dtnsity equation in the simulation of $0br TEC performan ce. \Ve disc:uss brielly the possible mechods of spac•charce control in future in a min TEC.

Item Type:	Article
Uncontrolled Keywords:	Emusron. solw enerzy. tbenn~oruc conve:raon, work functron
Subjects:	Q Science > QC Physics T Technology > TJ Mechanical engineering and machinery
Divisions:	Faculty of Engineering, Science and Mathematics > School of Physics
Depositing User:	Patricia Nwokealisi
Date Deposited:	05 Jun 2024 15:35
Last Modified:	05 Jun 2024 15:35
URI:	http://eprints.covenantuniversity.edu.ng/id/eprint/18072

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