Simulation of a Pumped Thermal Energy Storage based on a reversible HP-ORC-System

Eppinger B, Zigan L, Will S (2019)

Publication Language: English

Publication Type: Conference contribution, Original article

Publication year: 2019

Conference Proceedings Title: Proceedings of the 5th International Seminar on ORC Power Systems

Event location: Athen GR

ISBN: 978-90-9032038-0

URI: https://www.orc2019.com/online/proceedings/documents/74.pdf

Abstract

Pumped Thermal Energy Storages (PTES) are a possible solution for the location-independent storage of electrical energy using heat ongrid-relevant scales. The optimizeduseof the entire system is ensured by upgrading low-temperature heat, which can either be extracted from the environment or obtained from waste heat sources for increased power to power (P2P) efficiencies. In addition to the waste heat temperature, the storage temperature and type play a decisive role forthe efficiency of the system. The investigation of this influence shows that a P2P efficiency ofover 80% is possible. This efficiency can further be improvedwith an upscaleof the system and the associated increase of the isentropic effi-ciency of the two working machinesinvolved. The relationship between P2P efficiency and the choice of fluid in connection with the type of thermal storage used (latent or sensible) shows a different suita-bility for the individual processes.

Authors with CRIS profile

Bernd Eppinger Lehrstuhl für Technische Thermodynamik Lars Zigan Lehrstuhl für Technische Thermodynamik Stefan Will Lehrstuhl für Technische Thermodynamik

How to cite

APA:

Eppinger, B., Zigan, L., & Will, S. (2019). Simulation of a Pumped Thermal Energy Storage based on a reversible HP-ORC-System. In Proceedings of the 5th International Seminar on ORC Power Systems. Athen, GR.

MLA:

Eppinger, Bernd, Lars Zigan, and Stefan Will. "Simulation of a Pumped Thermal Energy Storage based on a reversible HP-ORC-System." Proceedings of the ORC2019, Athen 2019.

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