Technical FAQs 4

How can EnergyNest improve the performance of a high temperature energy storage system?

In order to enhance flexibility in scaling up a high temperature TES, EnergyNest developed and tested a 2 × 500 kWth thermal energy storage system based on a modular design with HEATCRETE vp1 concrete as the storage medium, offering improved thermal conductivity, heat capacity, and compressive strength able to resist temperatures up to 400 °C.

What is thermal energy storage?

Thermal energy storage (TES) addresses the mismatches between energy supply and demand, which involve time, temperature, power, and location [ 1 ]. Therefore, TES has multiple applications.

Can calcium aluminate based cement be used as thermal energy storage?

Alonso, M.C.; Vera-Agullo, J.; Guerreiro, L.; Flor-Laguna, V.; Sanchez, M.; Collares-Pereira, M. Calcium aluminate based cement for concrete to be used as thermal energy storage in solar thermal electricity plants. Cem. Concr. Res. 2016, 82, 74–86. [ Google Scholar] [ CrossRef]

Can TES based on concrete be used for high temperature applications?

One of the first concepts for TES based on concrete for high temperature applications was developed and studied by DLR. Laing et al. [ 12] built a prototype with high-temperature concrete and a storage capacity of approximately 280 kWh.

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