High-Temperature Latent-Heat Energy Storage Concept Based on Thermoelectronic Energy Conversion

Wolfgang Voesch; Robin Wanke; Iman Rastegar; Wolfgang Braun; Abraham Kribus; Jochen Mannhart

doi:10.1002/ente.201700273

High-Temperature Latent-Heat Energy Storage Concept Based on Thermoelectronic Energy Conversion

Wolfgang Voesch^*, Robin Wanke, Iman Rastegar, Wolfgang Braun, Abraham Kribus, Jochen Mannhart

^*Corresponding author for this work

School of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Energy storage is particularly essential for renewable energy sources. Here we present the concept of high-temperature latent-heat storage coupled with thermoelectronic energy conversion. We analyze this concept and its potential for storing large quantities of energy for several days. We investigate the efficiency of electricity generation and storage by using a single thermoelectronic energy converter and a bottoming cycle with a steam turbine. For storage temperatures above 1400 °C and large amounts of stored energy (>100 MWh), the maximum energy conversion efficiencies of such systems are high. Thus the proposed systems are attractive storage solutions for excessive heat storage and heat-on-demand delivery of large-scale thermal solar power plants.

Original language	English
Pages (from-to)	2234-2243
Number of pages	10
Journal	Energy Technology
Volume	5
Issue number	12
DOIs	https://doi.org/10.1002/ente.201700273
State	Published - Dec 2017

Keywords

latent heat
solar–thermal conversion
steam turbine
thermal energy storage
thermionic energy conversion

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1002/ente.201700273

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title = "High-Temperature Latent-Heat Energy Storage Concept Based on Thermoelectronic Energy Conversion",

abstract = "Energy storage is particularly essential for renewable energy sources. Here we present the concept of high-temperature latent-heat storage coupled with thermoelectronic energy conversion. We analyze this concept and its potential for storing large quantities of energy for several days. We investigate the efficiency of electricity generation and storage by using a single thermoelectronic energy converter and a bottoming cycle with a steam turbine. For storage temperatures above 1400 °C and large amounts of stored energy (>100 MWh), the maximum energy conversion efficiencies of such systems are high. Thus the proposed systems are attractive storage solutions for excessive heat storage and heat-on-demand delivery of large-scale thermal solar power plants.",

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author = "Wolfgang Voesch and Robin Wanke and Iman Rastegar and Wolfgang Braun and Abraham Kribus and Jochen Mannhart",

note = "Publisher Copyright: {\textcopyright} 2017 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA.",

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AU - Rastegar, Iman

AU - Braun, Wolfgang

AU - Kribus, Abraham

AU - Mannhart, Jochen

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N2 - Energy storage is particularly essential for renewable energy sources. Here we present the concept of high-temperature latent-heat storage coupled with thermoelectronic energy conversion. We analyze this concept and its potential for storing large quantities of energy for several days. We investigate the efficiency of electricity generation and storage by using a single thermoelectronic energy converter and a bottoming cycle with a steam turbine. For storage temperatures above 1400 °C and large amounts of stored energy (>100 MWh), the maximum energy conversion efficiencies of such systems are high. Thus the proposed systems are attractive storage solutions for excessive heat storage and heat-on-demand delivery of large-scale thermal solar power plants.

AB - Energy storage is particularly essential for renewable energy sources. Here we present the concept of high-temperature latent-heat storage coupled with thermoelectronic energy conversion. We analyze this concept and its potential for storing large quantities of energy for several days. We investigate the efficiency of electricity generation and storage by using a single thermoelectronic energy converter and a bottoming cycle with a steam turbine. For storage temperatures above 1400 °C and large amounts of stored energy (>100 MWh), the maximum energy conversion efficiencies of such systems are high. Thus the proposed systems are attractive storage solutions for excessive heat storage and heat-on-demand delivery of large-scale thermal solar power plants.

KW - latent heat

KW - solar–thermal conversion

KW - steam turbine

KW - thermal energy storage

KW - thermionic energy conversion

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High-Temperature Latent-Heat Energy Storage Concept Based on Thermoelectronic Energy Conversion

Abstract

Keywords

UN SDGs

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