Memorias de investigación
Communications at congresses:
Molten silicon at the hearth of a novel energy storage system
Year:2018
Research Areas
  • Solar cells
Information
Abstract
AMADEUS (www.amadeus-project.eu) is a FET-OPEN project funded by the European Commission to research a new generation of materials and solid state devices for ultra-high temperature energy storage and conversion. By exploring silicon-based alloys as new phase change materials (PCMs), latent heat in the range of 1000-2000 kWh/m3 is achievable; which means an order of magnitude greater than that of typical salt-based PCMs used in concentrated solar power (CSP). In addition, silicon-based PCMs lead to storage temperatures well beyond 1000 ºC, and so this project aims at breaking the mark of ~ 600 ºC rarely exceeded by current state of the art thermal energy storage (TES). This paper describes the project R&D activities and first results, and comments on challenges towards new systems combining latent heat energy storage in molten silicon and hybrid thermionic-photovoltaic (TIPV) heat-to-power conversion. Also, numerical steady-state and transient simulations of a lab-scale TES prototype are presented; where silicon phase-change, heat loss mechanisms and heat-to-power conversion analyses are conducted. For real cases studied, percentage of energy stored available for conversion strongly depends on the scale, design and materials; with conversions above 75-85% considered feasible for medium-large scale applications.
International
Si
Congress
Silicon for the Chemical and Solar Industry XIV
960
Place
Svolvaer, Norway
Reviewers
Si
ISBN/ISSN
CDPO8UPM
Start Date
11/06/2018
End Date
14/06/2018
From page
1
To page
12
Proceedings of Silicon for the Chemical and Solar Industry XIV
Participants
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Silicio y Nuevos Conceptos para Células Solares
  • Centro o Instituto I+D+i: Instituto de Energía Solar
  • Departamento: Electrónica Física