Design and assessment on a bottom-cut shape for latent heat storage tank filled with metal foam
(2024) In International Journal of Thermal Sciences 197.- Abstract
The utilization of phase change materials (PCMs) holds tremendous potential of heat storage domain. The PCM's refractory at the latent heat thermal energy storage (LHTES) unit bottom hinders the heat storage efficiency, despite the significant improvement in thermal conductivity achieved through the addition of metal foam. This study employs numerical simulation to examine the impact of applying bottom cross-cut on PCM's spatial distribution in a horizontal LHTES unit. The manuscript analyzes parameters including melting fraction, complete melting time, Rayleigh number, natural convection heat transfer gain, melting phase interface, velocity and temperature distributions, and heat storage. The findings indicate that the proximity to the... (More)
The utilization of phase change materials (PCMs) holds tremendous potential of heat storage domain. The PCM's refractory at the latent heat thermal energy storage (LHTES) unit bottom hinders the heat storage efficiency, despite the significant improvement in thermal conductivity achieved through the addition of metal foam. This study employs numerical simulation to examine the impact of applying bottom cross-cut on PCM's spatial distribution in a horizontal LHTES unit. The manuscript analyzes parameters including melting fraction, complete melting time, Rayleigh number, natural convection heat transfer gain, melting phase interface, velocity and temperature distributions, and heat storage. The findings indicate that the proximity to the heating tube results in a reduction of solid volume at the LHTES unit bottom. A 0.6 bottom cross-cut ratio leads to an 18.84 % faster heat storage rate compared to a concentric-circle unit. Furthermore, a bottom cross-cut ratio of 0.5 enhances natural convection heat transfer gain by 3.28 times.
(Less)
- author
- Hu, Rukun ; Huang, Xinyu ; Gao, Xinyu ; Lu, Liu ; Yang, Xiaohu and Sundén, Bengt LU
- organization
- publishing date
- 2024-03
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Bottom cross-cut, Metal foam, Natural convection, Numerical simulation, Spatial distribution
- in
- International Journal of Thermal Sciences
- volume
- 197
- article number
- 108757
- publisher
- Elsevier
- external identifiers
-
- scopus:85176424434
- ISSN
- 1290-0729
- DOI
- 10.1016/j.ijthermalsci.2023.108757
- language
- English
- LU publication?
- yes
- id
- 0300001b-9299-4a0d-99e3-75ba273734c1
- date added to LUP
- 2023-12-20 15:21:57
- date last changed
- 2023-12-20 15:22:36
@article{0300001b-9299-4a0d-99e3-75ba273734c1,
abstract = {{<p>The utilization of phase change materials (PCMs) holds tremendous potential of heat storage domain. The PCM's refractory at the latent heat thermal energy storage (LHTES) unit bottom hinders the heat storage efficiency, despite the significant improvement in thermal conductivity achieved through the addition of metal foam. This study employs numerical simulation to examine the impact of applying bottom cross-cut on PCM's spatial distribution in a horizontal LHTES unit. The manuscript analyzes parameters including melting fraction, complete melting time, Rayleigh number, natural convection heat transfer gain, melting phase interface, velocity and temperature distributions, and heat storage. The findings indicate that the proximity to the heating tube results in a reduction of solid volume at the LHTES unit bottom. A 0.6 bottom cross-cut ratio leads to an 18.84 % faster heat storage rate compared to a concentric-circle unit. Furthermore, a bottom cross-cut ratio of 0.5 enhances natural convection heat transfer gain by 3.28 times.</p>}},
author = {{Hu, Rukun and Huang, Xinyu and Gao, Xinyu and Lu, Liu and Yang, Xiaohu and Sundén, Bengt}},
issn = {{1290-0729}},
keywords = {{Bottom cross-cut; Metal foam; Natural convection; Numerical simulation; Spatial distribution}},
language = {{eng}},
publisher = {{Elsevier}},
series = {{International Journal of Thermal Sciences}},
title = {{Design and assessment on a bottom-cut shape for latent heat storage tank filled with metal foam}},
url = {{http://dx.doi.org/10.1016/j.ijthermalsci.2023.108757}},
doi = {{10.1016/j.ijthermalsci.2023.108757}},
volume = {{197}},
year = {{2024}},
}