Steady state analysis of a storage integrated solar thermophotovoltaic (SISTPV) system

Datas, A., Chubb, D. L. and Veeraragavan, A. (2013) Steady state analysis of a storage integrated solar thermophotovoltaic (SISTPV) system. Solar Energy, 96 33-45. doi:10.1016/j.solener.2013.07.002

Author Datas, A.
Chubb, D. L.
Veeraragavan, A.
Title Steady state analysis of a storage integrated solar thermophotovoltaic (SISTPV) system
Journal name Solar Energy   Check publisher's open access policy
ISSN 0038-092X
Publication date 2013-10-01
Year available 2013
Sub-type Article (original research)
DOI 10.1016/j.solener.2013.07.002
Volume 96
Start page 33
End page 45
Total pages 13
Place of publication Oxford, United Kingdom
Publisher Elsevier
Collection year 2014
Language eng
Abstract This paper presents the theoretical analysis of a storage integrated solar thermophotovoltaic (SISTPV) system operating in steady state. These systems combine thermophotovoltaic (TPV) technology and high temperature thermal storage phase-change materials (PCM) in the same unit, providing a great potential in terms of efficiency, cost reduction and storage energy density. The main attraction in the proposed system is its simplicity and modularity compared to conventional Concentrated Solar Power (CSP) technologies. This is mainly due to the absence of moving parts. In this paper we analyze the use of Silicon as the phase change material (PCM). Silicon is an excellent candidate because of its high melting point (1680. K) and its very high latent heat of fusion of 1800. kJ/kg, which is about ten times greater than the conventional PCMs like molten salts. For a simple system configuration, we have demonstrated that overall conversion efficiencies up to ~35% are approachable. Although higher efficiencies are expected by incorporating more advanced devices like multijunction TPV cells, narrow band selective emitters or adopting near-field TPV configurations as well as by enhancing the convective/conductive heat transfer within the PCM. In this paper, we also discuss about the optimum system configurations and provide the general guidelines for designing these systems. Preliminary estimates of night time operations indicate it is possible to achieve over 10. h of operation with a relatively small quantity of Silicon.
Keyword Concentrating solar power
Phase change material
Solar energy
Solar thermophotovoltaics
Thermal storage
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2014 Collection
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Citation counts: TR Web of Science Citation Count  Cited 10 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 12 times in Scopus Article | Citations
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Created: Fri, 30 Aug 2013, 10:50:13 EST by Anand Veeraragavan on behalf of School of Mechanical and Mining Engineering