Comparison of promising materials for filling thermocline tanks as thermal energy storage of a CSP plant applying air as HTF

Nuñez, Francisco Cabello; Zaversky, Fritz

doi:10.1063/5.0085736

AIP Conference Proceedings

2022

DOI: 10.1063/5.0085736

|View full text |Cite

Comparison of promising materials for filling thermocline tanks as thermal energy storage of a CSP plant applying air as HTF

Francisco Cabello Nuñez,

Fritz Zaversky

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Article2

Relationship

Self Cite0

Independent2

Authors

Journals

Cited by 2 publications

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Long-term heat storage opportunities of renewable energy for district heating networks

Hansen,

Xydis

2024

Proceedings of the Institution of Civil Engineers - Energy

View full text Add to dashboard Cite

This work compares different thermal heat storage solutions existing in the market, fueled with energy from different renewable energy sources with a focus on integrating it into the district heating grid. The paper bases a case on the municipality of Silkeborg, which has the largest solar thermal panel plant in northern Europe. It has been possible to collect data on the produced energy for the municipality of Silkeborg from different renewable energy sources. We used a theoretical approach to compare with assumed excess power from wind and solar in the DK1 area, with Silkeborg's allocated excess power at 0.01%. This yielded overall efficiencies between η = 0.739 - 0.765 and η = 0.864 - 0.895 for the Silkeborg solar thermal plant. These data have been utilized in the analysis, where the journey from harvesting the renewable energy until it reaches the end consumer, comparing the different solutions. Four different thermal heat storage solutions were compared: Tank Thermal Energy Storage, Pit Energy Storage, Aquifer Thermal Energy Storage, and Borehole Energy Storage (BTES). The analysis showed that the best solution for storing thermal energy for a longer period of time was the BTES out of the four solutions compared, with the lowest heat loss rate of 0.6% and the highest efficiency of up to 89.5%. However, some complications make it difficult to establish a BTES storage solution, since it is very much dependent on the earth's conditions and initial capital.

show abstract

Long-term heat storage opportunities of renewable energy for district heating networks

Hansen,

Xydis

2024

Proceedings of the Institution of Civil Engineers - Energy

View full text Add to dashboard Cite

show abstract

Dynamic Modeling of a Concentrating Solar Thermal Plant With a Packed Bed Energy Storage

Jin,

Oles,

Harding

et al. 2024

SolarPACES Conf Proc

View full text Add to dashboard Cite

The Air-packed bed system is a cost-competitive concentrating solar thermal system that employs air as the heat transfer fluid and a solid packed bed as the thermal energy storage medium. The thermocline behavior of the packed bed plays an important role in the performance and operation of the system, so a dynamic model of the TES is needed to evaluate the design and performance of the system. A high-fidelity first-principle TES model is often too computationally expensive to incorporate into a larger system model for simulation and optimization at an annual time scale. Here, we develop in Modelica a system model for a CST concept plant with a reduced order TES model to ensure the necessary thermocline fidelity while maintaining suitable computational performance. The validity of the reduced order model is quantified both against simulation results from a first-principle finite-difference model and against real-world test data taken at the Heliogen Test Facility in Lancaster, CA. The thermocline fidelity and computational performance of the system model are then demonstrated with an annual simulation run of the concept air-packed bed plant.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Comparison of promising materials for filling thermocline tanks as thermal energy storage of a CSP plant applying air as HTF

Cited by 2 publications

References 11 publications

Long-term heat storage opportunities of renewable energy for district heating networks

Long-term heat storage opportunities of renewable energy for district heating networks

Dynamic Modeling of a Concentrating Solar Thermal Plant With a Packed Bed Energy Storage

Contact Info

Product

Resources

About