Thermal impacts on the performance of nanoscale-gap thermophotovoltaic power generators
dc.contributor.author | Francoeur, M. | |
dc.contributor.author | Vaillon, R. | |
dc.contributor.author | Mengüç, Mustafa Pınar | |
dc.date.accessioned | 2012-08-23T14:03:34Z | |
dc.date.available | 2012-08-23T14:03:34Z | |
dc.date.issued | 2011-06 | |
dc.identifier.issn | 0885-8969 | |
dc.identifier.uri | http://hdl.handle.net/10679/247 | |
dc.identifier.uri | http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5744109 | |
dc.description | Due to copyright restrictions, the access to the full text of this article is only available via subscription. | en_US |
dc.description.abstract | The thermal impacts on the performance of nanoscale-gap thermophotovoltaic (nano-TPV) power generators are investigated using a coupled near-field thermal radiation, charge, and heat transport formulation. A nano-TPV device consisting of a tungsten radiator, maintained at 2000 K, and cells made of indium gallium antimonide (In0.18Ga0.82 Sb) are considered; the thermal management system is modeled assuming a convective boundary with a fluid temperature fixed at 293 K. Results reveal that nano-TPV performance characteristics are closely related to the temperature of the cell. When the radiator and the junction are separated by a 20 nm vacuum gap, the power output and the conversion efficiency of the system are respectively 5.83 × 105 Wm−2 and 24.8% at 300 K, whereas these values drop to 8.09 × 104 Wm−2 and 3.2% at 500 K. In order to maintain the cell at room temperature, a heat transfer coefficient as high as 105 Wm−2 K−1 is required for nanometer-size vacuum gaps. The reason for this is that thermal radiation since thermal radiation enhancement beyond the blackbody from a bulk radiator of tungsten is broadband in nature, while only a certain part of the spectrum is useful for maximizing nano-TPV performance. In future studies, near-field radiation spectral conditions leading to optimal performance characteristics of the device will be investigated. | en_US |
dc.description.sponsorship | Kentucky Science and Engineering Foundation ; European Commission ; TÜBİTAK | |
dc.language.iso | eng | en_US |
dc.publisher | IEEE | en_US |
dc.relation | info:eu-repo/grantAgreement/EC/FP7/239382 | en_US |
dc.relation | info:turkey/grantAgreement/TUBITAK/109M170 | en_US |
dc.relation.ispartof | IEEE Transactions on Energy Conversion | |
dc.rights | restrictedAccess | |
dc.title | Thermal impacts on the performance of nanoscale-gap thermophotovoltaic power generators | en_US |
dc.type | Article | en_US |
dc.peerreviewed | yes | en_US |
dc.publicationstatus | published | en_US |
dc.contributor.department | Özyeğin University | |
dc.contributor.authorID | (ORCID 0000-0001-5483-587X & YÖK ID 141825) Mengüç, Pınar | |
dc.contributor.ozuauthor | Mengüç, Mustafa Pınar | |
dc.identifier.volume | 26 | |
dc.identifier.issue | 2 | |
dc.identifier.startpage | 686 | |
dc.identifier.endpage | 698 | |
dc.identifier.wos | WOS:000290735200031 | |
dc.identifier.doi | 10.1109/TEC.2011.2118212 | |
dc.subject.keywords | Energy conversion | en_US |
dc.subject.keywords | Nanoscale-gap thermophotovoltaic | en_US |
dc.subject.keywords | Near-field thermal radiation | en_US |
dc.subject.keywords | Thermal effects | en_US |
dc.identifier.scopus | SCOPUS:2-s2.0-79957524561 | |
dc.contributor.authorMale | 1 | |
dc.relation.publicationcategory | Article - International Refereed Journal - Institutional Academic Staff |
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