scholarly journals Assessment of different sands potentiality to formulate an effective thermal energy storage material (TESM)

2021 ◽  
Vol 2 (1b) ◽  
pp. C20A08-1-C20A08-7
Author(s):  
Bagré Boubou ◽  
◽  
Kolawole Muritala Ibrahim ◽  
Makinta Boukar ◽  
Tizane Daho ◽  
...  
Keyword(s):  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Solid Particles ◽  
Storage Material ◽  
Storage Performance ◽  
Two Samples ◽  
Energy Storage Material ◽  
Thermal Energy Storage Material ◽  
Sahel Region

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.

scholarly journals Thermochemical energy storage performance of zinc destabilized calcium hydride at high-temperatures

2020 ◽  
Vol 22 (44) ◽  
pp. 25780-25788
Author(s):  
Sruthy Balakrishnan ◽  
M. Veronica Sofianos ◽  
Terry D. Humphries ◽  
Mark Paskevicius ◽  
Craig E. Buckley
Keyword(s):  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Decomposition Temperature ◽  
Calcium Hydride ◽  
Third Generation ◽  
Storage Material ◽  
Storage Performance ◽  
Energy Storage Material ◽  
Thermal Energy Storage Material

The thermodynamic destabilisation of CaH2 with Zn reduces the decomposition temperature of CaH2 (1100 °C at 1 bar of H2 pressure) to 597 °C at 1 bar of H2 pressure, creating a viable thermal energy storage material for third generation CSP plants.

Waste From Metallurgic Industry: A Sustainable High-Temperature Thermal Energy Storage Material for Concentrated Solar Power

2013 ◽  
Author(s):  
Nicolas Calvet ◽  
Guilhem Dejean ◽  
Lucía Unamunzaga ◽  
Xavier Py
Keyword(s):  
Heat Capacity ◽  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Solar Power ◽  
Low Cost ◽  
Concentrated Solar Power ◽  
Storage Material ◽  
Energy Storage Material ◽  
Thermal Energy Storage Material

The ambitious DOE SunShot cost target ($0.06/kWh) for concentrated solar power (CSP) requires innovative concepts in the collector, receiver, and power cycle subsystems, as well as in thermal energy storage (TES). For the TES, one innovative approach is to recycle waste from metallurgic industry, called slags, as low-cost high-temperature thermal energy storage material. The slags are all the non-metallic parts of cast iron which naturally rises up by lower density at the surface of the fusion in the furnace. Once cooled down some ceramic can be obtained mainly composed of oxides of calcium, silicon, iron, and aluminum. These ceramics are widely available in USA, about 120 sites in 32 States and are sold at a very low average price of $5.37/ton. The US production of iron and steel slag was estimated at 19.7 million tons in 2003 which guarantees a huge availability of material. In this paper, electric arc furnace (EAF) slags from steelmaking industry, also called “black slags”, were characterized in the range of temperatures of concentrated solar power. The raw material is thermo-chemically stable up to 1100 °C and presents a low cost per unit thermal energy stored ($0.21/kWht for ΔT = 100 °C) and a suitable heat capacity per unit volume of material (63 kWht/m3for ΔT = 100°C). These properties should enable the development of new TES systems that could achieve the TES targets of the SunShot (temperature above 600 °C, installed cost below $15/kWht, and heat capacity ≥25 kWht/m3). The detailed experimental results are presented in the paper. After its characterization, the material has been shaped in form of plates and thermally cycled in a TES system using hot-air as heat transfer fluid. Several cycles of charge and discharged were performed successfully and the concept was validated at laboratory scale. Apart from availability, low-cost, and promising thermal properties, the use of slag promotes the conservation of natural resources and is a noble solution to decrease the cost and to develop sustainable TES systems.

Thermophysical characterization of a by-product from the steel industry to be used as a sustainable and low-cost thermal energy storage material

Energy ◽  
2015 ◽  
Vol 89 ◽  
pp. 601-609 ◽  
Author(s):  
Iñigo Ortega-Fernández ◽  
Nicolas Calvet ◽  
Antoni Gil ◽  
Javier Rodríguez-Aseguinolaza ◽  
Abdessamad Faik ◽  
...  
Keyword(s):  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Steel Industry ◽  
Low Cost ◽  
Storage Material ◽  
Energy Storage Material ◽  
Thermal Energy Storage Material ◽  
Thermophysical Characterization
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