On the design of a solar heat storage tank at 120°C

ABSTRACT

This work presents the materials selection process, the design and the dimensioning process of a latent heat storage tank that works between a high temperature heat pump and an Organic Rankine Cycle unit. The selected heat storage material is the S117 Phase Change Material that has a melting point at 117°C matches the operational temperature of the system at approximately 120°C. The tank configuration is selected for optimised heat transfer process, resulted from practical experience of the project partners and it is described in details in the document. The simulation results from the Computational Fluid Dynamic study of the tank are also presented here. This work should be useful for engineers designing compact heat storage tanks for medium temperature applications.

KEYWORDS:

• Latent heat storage
• solar thermal collectors
• low temperature heat

Acknowledgements

This work has been elaborated in the framework of InnoSolPower project, which has received funding from the European Union’s Horizon 2020 Research and Innovation Programme CSP ERA-NET (G.A. 838311).

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work was supported by EU Horizon 2020 Research and Innovation Programme CSP ERA-NET [grant number 838311].