Method for Calculating Heat Transfer in a Heat Accumulator Using a Phase Change Material with Intensification Due to Longitudinal Fins DOI Creative Commons

В. И. Лебедев,

Andrey Deev,

Konstantin Deev

et al.

Energies, Journal Year: 2024, Volume and Issue: 17(21), P. 5281 - 5281

Published: Oct. 24, 2024

One of the challenges in energy supply for isolated power systems is maintaining a steady balance between generated and consumed energy. The application storage flexible sources most preferable approach these systems. Small- medium-sized nuclear plants are promising, carbon-free options to However, have low maneuverability. To solve this problem, article discusses use thermal accumulator using phase change material (solar salt) heat feedwater. Tubes with longitudinal fins used intensify transfer system. This paper presents method calculating along entire exchange surface such an accumulator. A series 2D simulations were conducted study solidification process solar salt around tube at various temperatures on inner wall surface. regression dependences temperature thickness solid PCM layer determined. Using presented obtained dependencies, we determined time graphs fluid outlet during discharge. Based results presented, it was found that 72.7 tons (dimensions: 6 × 3.71 2.15 m) can replace high-pressure heater №1 low-power plant (50 MW) 3450 s.

Language: Английский

Experimental and numerical assessment of thermal characteristics of PCM in a U-shaped heat exchanger using porous metal foam and NanoPowder DOI Creative Commons
Abolfazl NematpourKeshteli, Amir Houshang Mahmoudi, Marcello Iasiello

et al.

Solar Energy Materials and Solar Cells, Journal Year: 2024, Volume and Issue: 274, P. 112970 - 112970

Published: June 12, 2024

Language: Английский

Citations

8
Enhancing LHTES efficiency using asymmetric hexagon anisotropic metal foam layer: A comparative study on orientation and scale DOI

Masoud Mozaffari,

Ahmad Hajjar, Mikhail А. Sheremet

et al.

Thermal Science and Engineering Progress, Journal Year: 2025, Volume and Issue: unknown, P. 103343 - 103343

Published: Feb. 1, 2025

Language: Английский

Citations

0
Dual-objective topology optimization design for latent heat storage systems using composite phase change materials DOI
Zilong Song, Jiao Wang, Shaobin Tang

et al.

Energy, Journal Year: 2025, Volume and Issue: unknown, P. 135069 - 135069

Published: Feb. 1, 2025

Language: Английский

Citations

0
Method for Calculating Heat Transfer in a Heat Accumulator Using a Phase Change Material with Intensification Due to Longitudinal Fins DOI Creative Commons

В. И. Лебедев,

Andrey Deev,

Konstantin Deev

et al.

Energies, Journal Year: 2024, Volume and Issue: 17(21), P. 5281 - 5281

Published: Oct. 24, 2024

One of the challenges in energy supply for isolated power systems is maintaining a steady balance between generated and consumed energy. The application storage flexible sources most preferable approach these systems. Small- medium-sized nuclear plants are promising, carbon-free options to However, have low maneuverability. To solve this problem, article discusses use thermal accumulator using phase change material (solar salt) heat feedwater. Tubes with longitudinal fins used intensify transfer system. This paper presents method calculating along entire exchange surface such an accumulator. A series 2D simulations were conducted study solidification process solar salt around tube at various temperatures on inner wall surface. regression dependences temperature thickness solid PCM layer determined. Using presented obtained dependencies, we determined time graphs fluid outlet during discharge. Based results presented, it was found that 72.7 tons (dimensions: 6 × 3.71 2.15 m) can replace high-pressure heater №1 low-power plant (50 MW) 3450 s.

Language: Английский

Citations

1