DTU Studieprojekt - Numerical modelling and transient performance investigation of a packed-bed rock thermal energy storage

Numerical modelling and transient performance investigation of a packed-bed rock thermal energy storage

Udbyder
Vejleder
Sted
København og omegn
Description: Energy storage is crucial for the transition from a fossil fuel-based energy system to a renewable energy-based energy system due to the fluctuating nature of energy sources. In order to achieve 100 % renewable energy based system, the storage of energy until the time of usage is important apart from the simultaneous utilization. These may lead to storage of energy from few hours to few days storage. Battery storage can be used for dispatchable (on demand) power generating systems. However, despite the large volume production already in place, the large battery systems are currently very expensive, and therefore, large-scale energy storage with a battery system is rarely profitable. Low-cost thermal energy storage integrated charge-discharge unit can be a good alternative for dispatchable cogeneration systems (electricity and district heating).

The objective of the project is to develop a numerical model (probably based on CFD – computational fluid dynamics) that is able to predict the transient performance of the packed-bed rock thermal energy storage with air as a heat transfer fluid. The detailed numerical model will enable to determine the optimum dimensions, alternative materials and/or production options, optimum control strategy to reduce convection effects, gradual deterioration over repeated charge/discharge cycles, and the selection of insulation type for the storage tanks. The results of the project will be implemented in the EUDP project GridScale - A Cost-effective Large-scale Power to Power Storage. Andel is the coordinator of the GridScale project, and the other partners are Stiesdal Storage Technologies A/S, Burmeister & Wain Scandinavian Contractor A/S (B&W), Welcon A/S, Energi Danmark A/S, DTU Mechanical Engineering, Aarhus University, and Energy Cluster Denmark.

For further information/discussion, please feel free to contact Nishith B. Desai (nbdes@mek.dtu.dk) or Fredrik Haglind (frh@mek.dtu.dk)

• . The project will also include a supervisor with expertise on fluid mechanics and potentially a supervisor from Stiesdal Storage Technologies A/S.

You can read more about the topic from following papers:

1. Esence, T., Desrues, T., Fourmigué, J. F., Cwicklinski, G., Bruch, A., & Stutz, B. (2019). Experimental study and numerical modelling of high temperature gas/solid packed-bed heat storage systems. Energy, 180, 61-78.

2. Singh, S., Sørensen, K., Condra, T., Batz, S. S., & Kristensen, K. (2019).

• Investigation on transient performance of a large-scale packed-bed thermal energy storage. Applied Energy, 239, 1114-1129.

Emneord

• Energi
• Bioenergi
• Brændselsceller
• Elforsyning
• Energieffektivisering
• Energilagring
• Energiproduktion
• Energisystemer
• Kraftværker
• Solenergi
• Vindenergi
• Klimatilpasning

Navn
Fredrik Haglind

Stilling
Lektor

Mail
frh@mek.dtu.dk

Vejleder-info
Kandidatuddannelsen i Bæredygtig Energi
Vejleder
Fredrik Haglind

Medvejledere
Nishith Babubhai Desai

ECTS-point
30 - 35

Type
Kandidatspeciale