Scaling Law of Flow and Heat Transfer Characteristics in Turbulent Radiative Rayleigh-Bénard Convection of Optically Thick Media DOI Creative Commons

Jiajun Song,

Panxin Li,

Lu Chen

et al.

Energies, Journal Year: 2024, Volume and Issue: 17(19), P. 5009 - 5009

Published: Oct. 8, 2024

Radiative natural convection is of vital importance in the process energy storage, power generation, and thermal storage technology. As attenuation coefficients many heat transfer media these fields are high enough to be considered as optically thick media, like nanofluids or molten salts concentrated solar phase change Rosseland approximation commonly used. In this paper, we delve into impact radiation on Rayleigh-Bénard (RB) convection. Theoretical analysis has been conducted by modifying Grossmann-Lohse (GL) model. Based turbulent dissipation theory, corresponding scaling laws four main regimes proposed. Direct numerical simulation (DNS) was also performed, revealing that exerts a notable influence both flow transfer, particularly formation large-scale circulation. By comparing with DNS results, it found due presence radiation, modified Nu law small Pr range GL model more suitable for predicting transport characteristics optical large Pr. The maximum deviation between results prediction about 10%, suggesting summarized can effectively predict radiative RB

Language: Английский

Dual melting point composite phase change materials with anti-leakage and flame retardant properties for battery thermal safety systems DOI
Dan Shao,

Futong Li,

Wensheng Yang

et al.

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 111, P. 115438 - 115438

Published: Jan. 18, 2025

Language: Английский

Citations

1
A review of the performance and application of molten salt-based phase change materials in sustainable thermal energy storage at medium and high temperatures DOI
Huihui Wang, Jun Liu, Ying Wang

et al.

Applied Energy, Journal Year: 2025, Volume and Issue: 389, P. 125766 - 125766

Published: March 26, 2025

Language: Английский

Citations

0
Different enhancement mechanisms of heat conduction for paraffin phase change materials by adding CuO and CNT nanoparticles DOI
Wenning Zhou, Ruotong Li, Lin Lin

et al.

International Journal of Heat and Mass Transfer, Journal Year: 2025, Volume and Issue: 242, P. 126792 - 126792

Published: Feb. 10, 2025

Language: Английский

Citations

0
Property regulations of binary alkali carbonates by SiO2 nanoparticles for high-temperature thermal energy storage DOI
Zizhou Huang, Zhaokun Hu, Qing Li

et al.

Solar Energy Materials and Solar Cells, Journal Year: 2025, Volume and Issue: 285, P. 113537 - 113537

Published: March 5, 2025

Language: Английский

Citations

0
NaF-NaCl/graphite foam composites for high-temperature latent heat storage applications DOI

Chongyang Wei,

Xu Chen, Yi Li

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161556 - 161556

Published: March 1, 2025

Language: Английский

Citations

0
Investigation on enhancing heat transfer and storage efficiency of KNO3/sewage sludge incinerated slag composites for mid-temperature thermal energy storage DOI

Aitonglu Zhang,

Yaxuan Xiong, Yuting Wu

et al.

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 121, P. 116627 - 116627

Published: April 14, 2025

Language: Английский

Citations

0
Theoretical analysis of single/double-stage NH3-H2O long-term resorption energy storage cycle DOI

Pengbo Dou,

Teng Jia,

Peng Chu

et al.

Applied Thermal Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 126579 - 126579

Published: April 1, 2025

Language: Английский

Citations

0
Molecular insight into further enhancement of thermal conductivity and heat capacity of K2CO3-SiO2 molten salt nanofluids by oxygen vacancy defects in SiO2 nanoparticles DOI

Chang Ji,

Xueming Yang,

Haiqi Xu

et al.

International Journal of Heat and Mass Transfer, Journal Year: 2025, Volume and Issue: 247, P. 127148 - 127148

Published: April 25, 2025

Language: Английский

Citations

0
Numerical and experimental investigations on the effect of skeleton shapes and heat transfer directions on water freezing in porous media DOI
Qingyu Yang, Tao Yang, Yingying Yang

et al.

International Journal of Heat and Mass Transfer, Journal Year: 2024, Volume and Issue: 236, P. 126392 - 126392

Published: Nov. 2, 2024

Language: Английский

Citations

1
Scaling Law of Flow and Heat Transfer Characteristics in Turbulent Radiative Rayleigh-Bénard Convection of Optically Thick Media DOI Creative Commons

Jiajun Song,

Panxin Li,

Lu Chen

et al.

Energies, Journal Year: 2024, Volume and Issue: 17(19), P. 5009 - 5009

Published: Oct. 8, 2024

Radiative natural convection is of vital importance in the process energy storage, power generation, and thermal storage technology. As attenuation coefficients many heat transfer media these fields are high enough to be considered as optically thick media, like nanofluids or molten salts concentrated solar phase change Rosseland approximation commonly used. In this paper, we delve into impact radiation on Rayleigh-Bénard (RB) convection. Theoretical analysis has been conducted by modifying Grossmann-Lohse (GL) model. Based turbulent dissipation theory, corresponding scaling laws four main regimes proposed. Direct numerical simulation (DNS) was also performed, revealing that exerts a notable influence both flow transfer, particularly formation large-scale circulation. By comparing with DNS results, it found due presence radiation, modified Nu law small Pr range GL model more suitable for predicting transport characteristics optical large Pr. The maximum deviation between results prediction about 10%, suggesting summarized can effectively predict radiative RB

Language: Английский

Citations

0