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Role of Thermal Energy Storage Technology in the Decarbonization of Energy Sector Process – Packed Rock Bed Parameters Analysis

Jakub Ochmann

Jakub Ochmann

Silesian University of Technology, Department of Power Engineering and TurbomachineryGliwice, Poland
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Ochmann, Jakub
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Michał Jurczyk

Michał Jurczyk

Silesian University of Technology, Department of Power Engineering and TurbomachineryGliwice, Poland
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Jurczyk, Michał
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Łukasz Bartela

Łukasz Bartela

Silesian University of Technology, Department of Power Engineering and TurbomachineryGliwice, Poland
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Bartela, Łukasz
  
28 ene 2023
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Publicado en línea: 28 ene 2023
Páginas: 65 - 74
Recibido: 15 mar 2022
Aceptado: 24 may 2022
DOI: https://doi.org/10.2478/acee-2022-0031
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© 2022 Jakub Ochmann et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1

The scheme of basic CAES installation
The scheme of basic CAES installation

Figure 2

The scheme of adiabatic CGES system
The scheme of adiabatic CGES system

Figure 3

The laboratory bench of TES installation
The laboratory bench of TES installation

Figure 4

The studied basalt samples
The studied basalt samples

Figure 5

Example comparison of air pressure drop (left) and basalt temperature (right) functions
Example comparison of air pressure drop (left) and basalt temperature (right) functions

Figure 6

Characteristic of temperature of outlet air, air pressure drop, internal energy of rock deposit and external heat losses as a time functions for the investigated materials in TES installation
Characteristic of temperature of outlet air, air pressure drop, internal energy of rock deposit and external heat losses as a time functions for the investigated materials in TES installation

Figure 7

Characteristic of outlet air temperature, air pressure drop amount of energy stored and external heat losses as a time functions during the charging phase for different porosity value of basalt-filled reservoir in TES installation
Characteristic of outlet air temperature, air pressure drop amount of energy stored and external heat losses as a time functions during the charging phase for different porosity value of basalt-filled reservoir in TES installation

The obtained and assumed parameters of the investigated materials in TES installation

Item Basalt Granite Ceramics – alumina Unit
Density 2660 2400 3960 kg/m3
Heat capacity 870–922 810–840 766–962 J/kg · K
Thermal conductivity 2.1–2.3 1.9–2.1 24.5–32.8 W/m · K
Max. operating temperature ~700 650 1600 °C

The studied values of particle diameters and porosity for analyzed samples of materials in TES installation

Item No. 1 No. 2 No. 3 No. 4 Unit
Particle diameter Dp 24.5 20 15.5 12 mm
Porosity ɛ 0.39 0.385 0.38 0.375 -

The boundary conditions for the rock deposit in TES installation

Item Value Unit
Inlet air temperature 80 °C
Inlet air mass flow 0.04 kg/s
Ambient temperature 20.1 °C
Ambient pressure 101325 Pa
Average external heat transfer coefficient 5 W/m2K
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Arquitectura y diseño, Arquitectura, Arquitectos, edificios
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