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

Datas Medina, Alejandro and Chubb, Donald L. and Veeraragavan, Anand (2013). Steady state analysis of a storage integrated solar thermophotovoltaic (SISTPV) system. "Solar Energy", v. 96 ; pp. 33-45. ISSN 0038-092X. https://doi.org/10.1016/j.solener.2013.07.002.

Description

Title: Steady state analysis of a storage integrated solar thermophotovoltaic (SISTPV) system
Author/s:
  • Datas Medina, Alejandro
  • Chubb, Donald L.
  • Veeraragavan, Anand
Item Type: Article
Título de Revista/Publicación: Solar Energy
Date: October 2013
ISSN: 0038-092X
Volume: 96
Subjects:
Freetext Keywords: Solar energy; Thermal storage; Phase change material; Photovoltaics; Concentrating solar power; Solar thermophotovoltaics
Faculty: Instituto de Energía Solar (IES) (UPM)
Department: Electrónica Física
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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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.

More information

Item ID: 29106
DC Identifier: http://oa.upm.es/29106/
OAI Identifier: oai:oa.upm.es:29106
DOI: 10.1016/j.solener.2013.07.002
Official URL: http://www.sciencedirect.com/science/article/pii/S0038092X13002673
Deposited by: Memoria Investigacion
Deposited on: 04 Jun 2014 16:18
Last Modified: 01 Nov 2015 23:56
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