publication . Article . 2016

Ultra high temperature latent heat energy storage and thermophotovoltaic energy conversion

CARLOS DEL CAÑIZO NADAL; Alejandro Datas; Antonio Marti; Antonio Luque; Antonio Luque; Alba Ramos;
Open Access English
  • Published: 01 May 2016
  • Country: Spain
Abstract
A conceptual energy storage system design that utilizes ultra high temperature phase change materials is presented. In this system, the energy is stored in the form of latent heat and converted to electricity upon demand by TPV (thermophotovoltaic) cells. Silicon is considered in this study as PCM (phase change material) due to its extremely high latent heat (1800 J/g or 500 Wh/kg), melting point (1410 °C), thermal conductivity (~25 W/mK), low cost (less than $2/kg or $4/kWh) and abundance on earth. The proposed system enables an enormous thermal energy storage density of ~1 MWh/m3, which is 10–20 times higher than that of lead-acid batteries, 2–6 times than tha...
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free text keywords: :Energies [Àrees temàtiques de la UPC], Energy storage, Renewable energy sources, Solar energy, LHTES (Latent heat thermal energy storage), High temperature, Thermophotovoltaics, Silicon, Boron, PCM (Phase change materials), CSP (Concentrated Solar Power), Energia -- Emmagatzematge, Energia solar -- Aplicacions, Energies renovables, Energías Renovables, Materials science, Thermal energy storage, Thermal conductivity, Optoelectronics, business.industry, business, Latent heat, Phase-change material, Concentrated solar power, Energy transformation, Thermophotovoltaic, Thermodynamics
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