Pumped storage technology combined with thermal energy storage: Power station and pressure tunnel concept

Franz Georg Pikl; Wolfgang Richter; Gerald Zenz

doi:10.1002/geot.201700020

Pumped storage technology combined with thermal energy storage: Power station and pressure tunnel concept

Titel in Übersetzung: Pumpspeichertechnologie kombiniert mit thermischer Energiespeicherung: Kraftwerks- und Druckstollenkonzept

Franz Georg Pikl, Wolfgang Richter, Gerald Zenz

Institut für Wasserbau und Wasserwirtschaft (2130)

Publikation: Beitrag in einer Fachzeitschrift › Artikel › Begutachtung

Abstract

Die Wasserkraft ist die älteste und meistgenutzte erneuerbare Energieressource zur Bereitstellung mechanischer Arbeit und elektrischer Energie. Der Energieträger Wasser dient außerdem in bewährten Pumpspeicherkraftwerken der sehr effizienten elektrischen Energiespeicherung. Darüber hinaus wird Wasser aufgrund der hohen spezifischen Wärmekapazität als gängigstes thermisches Energiespeichermedium verwendet. In einer Studie wird die Kombination elektrischer und thermischer Energiespeicherung in einem Pumpspeicherkraftwerkssystem untersucht, um mit der wirtschaftlichen Doppelnutzung des Energieträgers Wasser zwei energieintensive Sektoren zu bedienen und den Energieumsatz gegenüber der jeweiligen separaten Nutzung deutlich zu erhöhen. Unterirdische Kraftwerksanlagen sind unabhängig von topographischen Gegebenheiten, wodurch dieses Speicherkonzept zur Fernwärmeenergieversorgung umgesetzt werden kann. Eine mögliche Vision ist, thermische Solarenergie über Sommermonate in den Wasserkörper eines Pumpspeicherkraftwerks einzuspeisen, um diese in die verbrauchsintensiven Wintermonate zu transferieren. Damit Pumpspeicherkraftwerke bei hohen und saisonal schwankenden Wassertemperaturen funktionsfähig bleiben und gleichzeitig thermische Energie effizient gespeichert werden kann, sind Anpassungen der baulichen Komponenten und der Triebwasserführung erforderlich.

Titel in Übersetzung	Pumpspeichertechnologie kombiniert mit thermischer Energiespeicherung: Kraftwerks- und Druckstollenkonzept
Originalsprache	englisch
Seiten (von - bis)	611 - 619
Seitenumfang	9
Fachzeitschrift	Geomechanics and Tunnelling
Jahrgang	10
Ausgabenummer	5
DOIs	https://doi.org/10.1002/geot.201700020
Publikationsstatus	Veröffentlicht - 13 Okt. 2017
Veranstaltung	66. Geomechanik Kolloquium - Salzburg, Österreich Dauer: 11 Okt. 2017 → 13 Okt. 2017

Schlagwörter

Energiespeicher
Pumpspeicher
Thermische Energie
Druckstollen

ASJC Scopus subject areas

Energie (insg.)
Ingenieurwesen (insg.)

Fields of Expertise

Sustainable Systems

UN SDGs

Dieser Output leistet einen Beitrag zu folgendem(n) Ziel(en) für nachhaltige Entwicklung

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10.1002/geot.201700020

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title = "Pumped storage technology combined with thermal energy storage: Power station and pressure tunnel concept",

abstract = "Water power is the oldest and most-used energy source for provision of mechanical work and electricity generation. Furthermore pumped storage hydropower is ranked as the most reliable and efficient storage technology for electricity. The energy carrier water is also the most commonly-used thermal storage medium due to its high specific heat capacity. In a study, the combination of electrical and thermal energy storage in a pumped storage power station is investigated in order to cover two energy-intensive sectors with the economical double use of water as an energy medium. With this double application the energy output compared to separate storage usage can be considerably increased.Underground power stations are independent of topography, so this storage concept can be used for district heating supply. One possible vision is to stor solar energy into the water reservoir of a pumped storage power station in the summer months and transfer it in the high-demand winter months. In order that pumped storage power stations can keep functioning at high and seasonally fluctuating water temperatures and simultaneously store thermal energy efficiently, some adaptations of the structures and the pressure tunnel layout are necessary.",

keywords = "Energiespeicher, Pumpspeicher , Thermische Energie, Druckstollen",

author = "Pikl, {Franz Georg} and Wolfgang Richter and Gerald Zenz",

year = "2017",

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doi = "10.1002/geot.201700020",

language = "English",

volume = "10",

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journal = "Geomechanics and Tunnelling ",

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T1 - Pumped storage technology combined with thermal energy storage

T2 - 66. Geomechanik Kolloquium

AU - Pikl, Franz Georg

AU - Richter, Wolfgang

AU - Zenz, Gerald

PY - 2017/10/13

Y1 - 2017/10/13

N2 - Water power is the oldest and most-used energy source for provision of mechanical work and electricity generation. Furthermore pumped storage hydropower is ranked as the most reliable and efficient storage technology for electricity. The energy carrier water is also the most commonly-used thermal storage medium due to its high specific heat capacity. In a study, the combination of electrical and thermal energy storage in a pumped storage power station is investigated in order to cover two energy-intensive sectors with the economical double use of water as an energy medium. With this double application the energy output compared to separate storage usage can be considerably increased.Underground power stations are independent of topography, so this storage concept can be used for district heating supply. One possible vision is to stor solar energy into the water reservoir of a pumped storage power station in the summer months and transfer it in the high-demand winter months. In order that pumped storage power stations can keep functioning at high and seasonally fluctuating water temperatures and simultaneously store thermal energy efficiently, some adaptations of the structures and the pressure tunnel layout are necessary.

AB - Water power is the oldest and most-used energy source for provision of mechanical work and electricity generation. Furthermore pumped storage hydropower is ranked as the most reliable and efficient storage technology for electricity. The energy carrier water is also the most commonly-used thermal storage medium due to its high specific heat capacity. In a study, the combination of electrical and thermal energy storage in a pumped storage power station is investigated in order to cover two energy-intensive sectors with the economical double use of water as an energy medium. With this double application the energy output compared to separate storage usage can be considerably increased.Underground power stations are independent of topography, so this storage concept can be used for district heating supply. One possible vision is to stor solar energy into the water reservoir of a pumped storage power station in the summer months and transfer it in the high-demand winter months. In order that pumped storage power stations can keep functioning at high and seasonally fluctuating water temperatures and simultaneously store thermal energy efficiently, some adaptations of the structures and the pressure tunnel layout are necessary.

KW - Energiespeicher

KW - Pumpspeicher

KW - Thermische Energie

KW - Druckstollen

U2 - 10.1002/geot.201700020

DO - 10.1002/geot.201700020

M3 - Article

SN - 1865-7362

VL - 10

SP - 611

EP - 619

JO - Geomechanics and Tunnelling

JF - Geomechanics and Tunnelling

IS - 5

Y2 - 11 October 2017 through 13 October 2017

ER -

Pumped storage technology combined with thermal energy storage: Power station and pressure tunnel concept

Abstract

Schlagwörter

ASJC Scopus subject areas

Fields of Expertise

UN SDGs

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