Identification of suitable storage materials for solar thermal power plant using selection methodology

Tiskatine, Rachid; Aharoune, A.; Bouirden, L.; Ihlal, A.

doi:10.1016/j.applthermaleng.2017.01.107

Cited by 60 publications

(23 citation statements)

References 80 publications

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“…The most important characteristics of sensible storage media are high thermal conductivity, chemical stability, high mechanical resistance to thermal cycles, easy availability, being eco‐friendly and low cost, lower thermal expansion, smaller change in volume, and easy handling . The storage material should possess better heat transfer between the storage media and HTF, and it should not be corrosive with the container material . Tables and represent the important properties for different types of rocks and other sensible storage media.…”

Section: Sensible Tesmentioning

confidence: 99%

“…35,36 The storage material should possess better heat transfer between the storage media and HTF, and it should not be corrosive with the container material. 37 Tables 5 and 6 represent the important properties for different types of rocks and other sensible storage media. The overall packed-bed TES system performance is significantly affected by the thermal characteristics of the system, which is greatly influenced by the system parameters such as sphericity, porosity, and diameter of storage elements.…”

Section: Sensible Heat Storagementioning

confidence: 99%

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Review on solar thermal energy storage technologies and their geometrical configurations

Suresh

Saini

2020

Int J Energy Res

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Summary Because of the unstable and intermittent nature of solar energy availability, a thermal energy storage system is required to integrate with the collectors to store thermal energy and retrieve it whenever it is required. Thermal energy storage not only eliminates the discrepancy between energy supply and demand but also increases the performance and reliability of energy systems and plays a crucial role in energy conservation. Under this paper, different thermal energy storage methods, heat transfer enhancement techniques, storage materials, heat transfer fluids, and geometrical configurations are discussed. A comparative assessment of various thermal energy storage methods is also presented. Sensible heat storage involves storing thermal energy within the storage medium by increasing temperature without undergoing any phase transformation, whereas latent heat storage involves storing thermal energy within the material during the transition phase. Combined thermal energy storage is the novel approach to store thermal energy by combining both sensible and latent storage. Based on the literature review, it was found that most of the researchers carried out their work on sensible and latent storage systems with the different storage media and heat transfer fluids. Limited work on a combined sensible‐latent heat thermal energy storage system with different storage materials and heat transfer fluids was carried out so far. Further, combined sensible and latent heat storage systems are reported to have a promising approach, as it reduces the cost and increases the energy storage with a stabilized outflow of temperature from the system. The studies discussed and presented in this paper may be helpful to carry out further research in this area.

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Section: Sensible Tesmentioning

confidence: 99%

Section: Sensible Heat Storagementioning

confidence: 99%

Review on solar thermal energy storage technologies and their geometrical configurations

Suresh

Saini

2020

Int J Energy Res

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“…The specific heats of samples in this study are higher than the rocks (gneiss, rhyolite, marble, limestone) and inertized waste materials characterized as potential sensible heat TES materials in previous studies. [9][10][11][12][16][17][18][20][21][22]…”

Section: Dsc Measurementsmentioning

confidence: 99%

Using demolition wastes from urban regeneration as sensible thermal energy storage material

Koçak

Paksoy

2019

Int J Energy Res

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Summary Efficient use of solar energy in industrial applications calls for a cost‐effective thermal energy storage (TES) system. Packed bed is a viable technology for high‐temperature TES applications. The packing material acting as the TES material has to be sustainable with favorable thermal properties and compatible with the heat transfer fluid. Demolition wastes—leftovers from urban regeneration projects—in many countries are a big burden economically and environmentally. This paper aims to investigate the potential of using demolition wastes as sensible thermal energy storage (STES) material in packed bed column for industrial solar applications below 300°C. STES material samples have been prepared using binding additives with demolition waste dust. Chemical composition, mechanical strength, and thermal analysis tests have been carried out to determine suitability of STES samples. The DSC results showed that new STES samples had average specific heat capacity of 1000 to 1460 J/kg C in temperature range of 100°C to 500°C. The samples were thermally stable until 750°C under TGA analysis. These results showed that demolition wastes are potential low‐cost sensible heat storage material for applications up to 750°C. Furthermore, valorization of demolition wastes as sensible heat storage material is a sustainable approach in reducing fossil fuel consumption of high‐temperature industrial applications and avoiding the use of natural resources as packing material.

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“…The energy absorbed by the heat transfer fluid during the discharge period, it is expressed as: (6) The discharge efficiency defined as the ratio of the energy delivered to the heat transfer fluid and the ideal discharged energy corresponding to the ideal thermocline profile [10].…”

Section: Specificationsmentioning

confidence: 99%

“… Low thermal losses, etc. [5] So far, several TESMs have been chosen and evaluated as potential candidates for thermal storage using thermocline technology, among other, we mention: quartzite [6] [7] [8] [9], concrete [10] [11] [12],granite [13] [14], basalt [15], alumina [16] [17] [18], cofalite [19] [20], graphite [21] [22], and gabbro [15]. Some of these materials fulfill several criteria cited above as the quartzite and gabbro.…”

Section: Introductionmentioning

confidence: 99%

Numerical Assessement of Energy Storage Performances of Magnetite and Quartzite for CSP Storage Applications

Baba¹,

Mers²,

Ajdad³

et al. 2019

Proceedings of the 13th International Renewable Energy Storage Conference 2019 (IRES 2019)

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this paper pinpoints the thermal energy storage performances of two TESM, quartzite as classic thermal energy storage material commonly used in CSP and magnetite as emerged thermal energy storage filler material. The TES performances included charge, discharge and cycle efficiencies (utilization rate). In the first place, the developed numerical code for thermocline energy storage is presented and validated. Subsequently, and for both filler materials, the thermocline behavior and TES performances during charging and discharging process are examined. These performances are investigated for two potential scenarios: the first one considers the same storage tank size and the same discharge period. While, the second one, concerned sized storage tank for each combination HTF/TESM. Different heat transfer fluids are utilized involving natural oils, synthetic oils and molten salt. The obtained results showed that no significant difference of the zone thickness between the two materials. Moreover, we noted that quartzite presents slightly higher charge discharge and storage efficiencies. However, magnetite, for the same storage tank size and the same discharge time, magnetite is able to restore a great amount of energy. Furthermore, magnetite requires less storage tank volume. More important, we deduced that the TES performances are not impacted only by the TESM properties but they are also driven by the HTF nature and that molten salts are largely more efficient.

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Identification of suitable storage materials for solar thermal power plant using selection methodology

Cited by 60 publications

References 80 publications

Review on solar thermal energy storage technologies and their geometrical configurations

Review on solar thermal energy storage technologies and their geometrical configurations

Using demolition wastes from urban regeneration as sensible thermal energy storage material

Numerical Assessement of Energy Storage Performances of Magnetite and Quartzite for CSP Storage Applications

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