Medium and high temperature energy storage

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Medium and high temperature energy storage

Thermal energy storage (TES), as one of cost-effective and high-efficiency energy storage technologies that refer to a physical process collecting renewable energy or extra energy through the heat, cold or their combination fashion with a medium, and using them either directly or indirectly by an energy transition process (Kruitwagen et al., 2021, Pomerantseva et al., 2019), has presented great potentials at both renewable energy unitization and other energy storage fields such as energy network peak shaving, industrial waste heat recovery, spacing heating using domestic storage heater and electronic device thermal management (Cong et al., 2022, Mahon et al., 2022).

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6 FAQs about [Medium and high temperature energy storage]

What is high-temperature energy storage?

In high-temperature TES, energy is stored at temperatures ranging from 100°C to above 500°C. High-temperature technologies can be used for short- or long-term storage, similar to low-temperature technologies, and they can also be categorised as sensible, latent and thermochemical storage of heat and cooling (Table 6.4).

What is latent heat thermal energy storage?

Latent heat thermal energy storage refers to the storage and recovery of the latent heat during the melting/solidification process of a phase change material (PCM). Among various PCMs, medium- and high-temperature candidates are attractive due to their high energy storage densities and the potentials in achieving high round trip efficiency.

How is energy stored in sensible heat?

In sensible heat, energy is stored by raising the temperature of a medium. The amount of energy stored is proportional to the physical properties of the storage material, including density, volume, specific heat, and temperature change of the storage material .

What is thermal energy storage?

Thermal energy storage plays a vital role in the effective and efficient use of renewable energy resources and industrial waste heat. Keys to thermal storage technology include materials’ development and heat exchange during charge and discharge processes.

Which storage material is suitable for medium-high temperature applications?

A sensible storage material of ferric oxide was also used for comparison. It was revealed that the developed device was suitable for the medium-high temperature applications because of the appropriate melting temperature of the composite module.

What makes a good thermal storage system?

Systems based on sensible heat storage, latent heat storage and thermo-chemical processes are presented, including the state of maturity and innovative solutions. Essential for the effective integration of thermal storage systems is the optimal adaption to the specific requirements of an application.