Key Challenges for High Temperature Thermal Energy Storage in Concrete-First Steps towards a Novel Storage Design

Article Green & Sustainable Science & Technology

Geopolymer Concrete Performance Study for High-Temperature Thermal Energy Storage (TES) Applications

Mohammad Rahjoo et al.

Summary: This study proposes a geopolymer-based concrete as a thermal energy storage material that can withstand high operating temperatures, providing a solution to the challenge of dispatchability in solar power generation.

SUSTAINABILITY (2022)

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Article Thermodynamics

Experimental performance of a parabolic trough collector system for an industrial process heat application

Panayiotis K. Ktistis et al.

Summary: This study introduces the first industrial PTC system in Cyprus, which is able to produce steam for the industrial sector and improve fuel efficiency.

ENERGY (2021)

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Article Energy & Fuels

Thermal conductivity of concrete at high temperatures for thermal energy storage applications: Experimental analysis

T. Lucio-Martin et al.

Summary: This study experimentally investigated the evolution of thermal conductivity of concrete at high temperatures, revealing that the initial loss of thermal conductivity during heating is mainly due to the loss of free water. Siliceous aggregates experienced the highest decrease in thermal conductivity, while the thermal conductivity partially recovered during the cooling phase.

SOLAR ENERGY (2021)

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Article Construction & Building Technology

Evolution of thermo-mechanical properties of concrete with calcium aluminate cement and special aggregates for energy storage

Marta Roig-Flores et al.

Summary: The research investigated a concrete designed with calcium aluminate cement and stable high-temperature aggregates, finding that the thermal fatigue response stabilized during successive thermal cycles with only a slight decrease in thermo-mechanical properties. The results showed stabilization of cracking, reduction of compressive strength, and a decrease in thermal conductivity after exposure to thermal cycles.

CEMENT AND CONCRETE RESEARCH (2021)

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Article Energy & Fuels

Thermal and mechanical performance of cement paste under high temperature thermal cycles

Laura Boquera et al.

Summary: Concrete is a suitable material for thermal energy storage applications, with the thermal stability of cement paste being a key research focus. Ordinary Portland cement and calcium aluminate cement show different performance after thermal cycles at various temperatures.

SOLAR ENERGY MATERIALS AND SOLAR CELLS (2021)

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Article Energy & Fuels

Advanced Concrete Steam Accumulation Tanks for Energy Storage for Solar Thermal Electricity

Cristina Prieto et al.

Summary: Steam accumulation is considered as an effective thermal energy storage method in the solar thermal energy industry, but it faces challenges such as high cost and pressure decline during discharge. A new design with innovative materials is being developed to address these issues and improve efficiency in the industry.

ENERGIES (2021)

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Article Energy & Fuels

Development and Characterization of Concrete/PCM/Diatomite Composites for Thermal Energy Storage in CSP/CST Applications

Adio Miliozzi et al.

Summary: Utilizing concrete-based heat storage material with a small amount of shape-stabilized phase change material (PCM) can improve energy storage efficiency, enabling storage of energy as both sensible and latent heat. By enhancing thermal properties, particularly energy density, more compact and economically feasible thermal energy storage systems can be developed to operate within a temperature range of approximately 150-350 degrees C.

ENERGIES (2021)

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Article Energy & Fuels