Latent heat thermophotovoltaic batteries
Latent heat thermophotovoltaic (LHTPV) batteries store electricity as latent heat at very high temperatures (>1,000°C) and convert this heat back to electricity on demand using thermophotovoltaics (TPVs). In this study, we discuss the techno-economics of LHTPV systems, focusing on parameters such...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2022 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/381214 |
| Acceso en línea: | https://hdl.handle.net/2117/381214 https://dx.doi.org/10.1016/j.joule.2022.01.010 |
| Access Level: | acceso abierto |
| Palabra clave: | Solar batteries Energy storage Solar thermal energy Heat storage Cogeneration of electric power and heat Thermal battery Thermophotovoltaics Power-to-heat-to-power Thermal energy High temperature Silicon Long duration energy storage Cogeneration Combined heat and power Bateries solars Energia -- Emmagatzematge Energia tèrmica solar Calor -- Emmagatzematge Cogeneració de calor i d'electricitat Àrees temàtiques de la UPC::Energies::Energia solar fotovoltaica |
| Sumario: | Latent heat thermophotovoltaic (LHTPV) batteries store electricity as latent heat at very high temperatures (>1,000°C) and convert this heat back to electricity on demand using thermophotovoltaics (TPVs). In this study, we discuss the techno-economics of LHTPV systems, focusing on parameters such as the round-trip efficiency, energy-to-power ratio, cost per energy and power capacities, and levelized cost of storage. The very low cost of the heat storage media (<4 €/kWh) results in optimal designs with high energy-to-power ratios, fitting long-duration storage (LDS) applications. Shorter-duration storage applications are also possible by increasing the overall round-trip conversion efficiency through cogeneration, that is, combined heat and power (CHP) generation. Results indicate that LHTPV systems can provide lower levelized cost of storage than Li-ion batteries in both LDS and CHP applications. Preliminary experimental results are provided to illustrate the real operation of a LHTPV system |
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