Technical Development and Economic Evaluation of the Integration of Thermal Energy Storage in Steam Power Plants

Grid-compliant integration of renewable energies will in future require considerable increases in flexibility in the operation of conventional power plants. The integration of thermal energy storage systems (TES) into the power plant process can create considerable improvements, for example, in the...

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Main Authors: Michael Krüger, Selman Muslubas, Eren Çam, Daniel Lehmann, Sabine Polenz, Volker Dreißigacker, Freerk Klasing, Philipp Knödler
Format: Article
Language:English
Published: MDPI AG 2022-05-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/15/9/3388
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author Michael Krüger
Selman Muslubas
Eren Çam
Daniel Lehmann
Sabine Polenz
Volker Dreißigacker
Freerk Klasing
Philipp Knödler
author_facet Michael Krüger
Selman Muslubas
Eren Çam
Daniel Lehmann
Sabine Polenz
Volker Dreißigacker
Freerk Klasing
Philipp Knödler
author_sort Michael Krüger
collection DOAJ
description Grid-compliant integration of renewable energies will in future require considerable increases in flexibility in the operation of conventional power plants. The integration of thermal energy storage systems (TES) into the power plant process can create considerable improvements, for example, in the speed of load change and partial load behavior. In the case of existing plants, there are thus good prospects of upgrading for more flexible operation, which promises improvements in the energy system that can be achieved in the relatively short term. The aim of this publication is, therefore, to identify integration options for TES in coal-fired power plants which would enable the desired high flexibility potentials and, at the same time, include cost-efficient solutions. By means of an iterative approach between future scenarios of the energy market, the power plant process, and the TES component, favored configurations were developed from a wide range of integration concepts. For this purpose, thermodynamic simulation studies were performed, operating concepts were developed, economic assessments were made, design calculations were performed, and experimental investigations on different TES options were realized. The results obtained can serve as a basis for the demonstration of a promising TES technology in an existing hard coal-fired power plant.
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spelling doaj.art-2eb2cc6499db4aa6852c83eb49e3882a2023-11-23T08:10:34ZengMDPI AGEnergies1996-10732022-05-01159338810.3390/en15093388Technical Development and Economic Evaluation of the Integration of Thermal Energy Storage in Steam Power PlantsMichael Krüger0Selman Muslubas1Eren Çam2Daniel Lehmann3Sabine Polenz4Volker Dreißigacker5Freerk Klasing6Philipp Knödler7Institute of Engineering Thermodynamics, German Aerospace Centre (DLR), 70569 Stuttgart, GermanyChair of Environmental Process Engineering and Plant Design (LUAT), University of Duisburg-Essen, 45141 Essen, GermanyInstitute of Energy Economics at the University of Cologne (EWI), 50827 Cologne, GermanySTEAG Energy Services GmbH, 45128 Essen, GermanyVGB PowerTech e.V. (VGB), 45257 Essen, GermanyInstitute of Engineering Thermodynamics, German Aerospace Centre (DLR), 70569 Stuttgart, GermanyInstitute of Engineering Thermodynamics, German Aerospace Centre (DLR), 51147 Cologne, GermanyInstitute of Engineering Thermodynamics, German Aerospace Centre (DLR), 70569 Stuttgart, GermanyGrid-compliant integration of renewable energies will in future require considerable increases in flexibility in the operation of conventional power plants. The integration of thermal energy storage systems (TES) into the power plant process can create considerable improvements, for example, in the speed of load change and partial load behavior. In the case of existing plants, there are thus good prospects of upgrading for more flexible operation, which promises improvements in the energy system that can be achieved in the relatively short term. The aim of this publication is, therefore, to identify integration options for TES in coal-fired power plants which would enable the desired high flexibility potentials and, at the same time, include cost-efficient solutions. By means of an iterative approach between future scenarios of the energy market, the power plant process, and the TES component, favored configurations were developed from a wide range of integration concepts. For this purpose, thermodynamic simulation studies were performed, operating concepts were developed, economic assessments were made, design calculations were performed, and experimental investigations on different TES options were realized. The results obtained can serve as a basis for the demonstration of a promising TES technology in an existing hard coal-fired power plant.https://www.mdpi.com/1996-1073/15/9/3388TESthermal energy storageheat storagecoal-fired power plantspower plant flexibilization
spellingShingle Michael Krüger
Selman Muslubas
Eren Çam
Daniel Lehmann
Sabine Polenz
Volker Dreißigacker
Freerk Klasing
Philipp Knödler
Technical Development and Economic Evaluation of the Integration of Thermal Energy Storage in Steam Power Plants
Energies
TES
thermal energy storage
heat storage
coal-fired power plants
power plant flexibilization
title Technical Development and Economic Evaluation of the Integration of Thermal Energy Storage in Steam Power Plants
title_full Technical Development and Economic Evaluation of the Integration of Thermal Energy Storage in Steam Power Plants
title_fullStr Technical Development and Economic Evaluation of the Integration of Thermal Energy Storage in Steam Power Plants
title_full_unstemmed Technical Development and Economic Evaluation of the Integration of Thermal Energy Storage in Steam Power Plants
title_short Technical Development and Economic Evaluation of the Integration of Thermal Energy Storage in Steam Power Plants
title_sort technical development and economic evaluation of the integration of thermal energy storage in steam power plants
topic TES
thermal energy storage
heat storage
coal-fired power plants
power plant flexibilization
url https://www.mdpi.com/1996-1073/15/9/3388
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