Thermochemical Cycle of a Mixed Metal Oxide for Augmentation of Thermal Energy Storage in Solid Particles

This paper presents a review of solid particles size effect on thermocline storage performance for Concentrating Solar Power (CSP) storage systems. After an overview on the different process to store thermal energy we found that a particle size of 2cm diameter is better to achieve a good sensible heat storage performance within a system call dual-medium thermocline (DMT). The thermal storage potentiality of different sands from Burkina Faso have been carry out to look at the possibility to make a filler material with 2cm diameter. However, two different sands (mining dune and river sand) properties have been assessed. The density of the two samples is more than 2650kg.𝑚−3 with low mass losses at 700 ℃ without any agglomeration at 900 ℃ and 1000℃. This indicates that the mining sand samples from Bobo Dioulasso and Dune sand from Sahel region in Burkina (Oursi) have the potentials to be used to develop an effective thermal energy storage material or to store thermal energy at high temperature.

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Development of a Concentrating Solar Power System Using Fluidized-bed Technology for Thermal Energy Conversion and Solid Particles for Thermal Energy Storage

Energy Procedia ◽

10.1016/j.egypro.2015.03.136 ◽

2015 ◽

Vol 69 ◽

pp. 1349-1359 ◽

Cited By ~ 23

Author(s):

Z. Ma ◽

M. Mehos ◽

G. Glatzmaier ◽

B.B. Sakadjian

Keyword(s):

Energy Storage ◽

Power System ◽

Energy Conversion ◽

Fluidized Bed ◽

Thermal Energy ◽

Thermal Energy Storage ◽

Solar Power ◽

Solid Particles ◽

Concentrating Solar Power ◽

Thermal Energy Conversion

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Fluidized Bed Technology for Concentrating Solar Power With Thermal Energy Storage

Journal of Solar Energy Engineering ◽

10.1115/1.4027262 ◽

2014 ◽

Vol 136 (3) ◽

Cited By ~ 38

Author(s):

Zhiwen Ma ◽

Greg Glatzmaier ◽

Mark Mehos

Keyword(s):

Energy Storage ◽

Fluidized Bed ◽

Thermal Energy ◽

Thermal Energy Storage ◽

Performance Metrics ◽

Solar Power ◽

Solid Particles ◽

Thermal System ◽

Concentrating Solar Power ◽

And Storage

A generalized modeling method is introduced and used to evaluate thermal energy storage (TES) performance. The method describes TES performance metrics in terms of three efficiencies: first-law efficiency, second-law efficiency, and storage effectiveness. By capturing all efficiencies in a systematic way, various TES technologies can be compared on an equal footing before more detailed simulations of the components and concentrating solar power (CSP) system are performed. The generalized performance metrics are applied to the particle-TES concept in a novel CSP thermal system design. The CSP thermal system has an integrated particle receiver and fluidized-bed heat exchanger, which uses gas/solid two-phase flow as the heat-transfer fluid, and solid particles as the heat carrier and storage medium. The TES method can potentially achieve high temperatures (>800 °C) and high thermal efficiency economically.

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A New Thermal Energy Storage Technology for Power System Services

10.20944/preprints202102.0020.v1 ◽

2021 ◽

Author(s):

Romano Acri ◽

Fulvio Bassetti ◽

Maria Carmen Falvo ◽

Letizia Magaldi ◽

Matteo Manganelli ◽

...

Keyword(s):

Energy Storage ◽

Power Systems ◽

Power System ◽

Thermal Energy ◽

Thermal Energy Storage ◽

Power Plants ◽

Waste Heat ◽

Renewable Energy Sources ◽

Solid Particles ◽

Steam Turbines

The decarbonization of the electrical energy sector is in progress for contrasting the climate changes, with a relevant increase of the Renewable Energy Sources (RES) power plants, mostly in Dispersed Generation (DG). The adequacy and the security of power systems, with a huge penetration of RES in DG is possible with a suitable integration of energy storage. In fact, energy storages are able to provide many different services for long-term adequacy and real time security. In this framework the present paper deals with a Thermal Energy Storage (TES) proposed for power system services. The technology presented is made up of modules containing a bed of fluidizable solid particles, which can store thermal energy from waste heat, process heat and/or from electricity. Stored thermal energy can be released, e.g. as superheated steam, for thermal uses or converted into electricity, by means of steam turbines. Some possible applications are then reported explaining advantages and limits.

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