|Table of Contents|

Numerical Study on Heat Storage and Heat Transfer Characteristics of PCM Phase Transition with Reinforced Ribs(PDF)

《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

Issue:
2024年02期
Page:
8-16
Research Field:
物理学
Publishing date:

Info

Title:
Numerical Study on Heat Storage and Heat Transfer Characteristics of PCM Phase Transition with Reinforced Ribs
Author(s):
Zhang Yongchun1; Dong Wenli1; Sun Tao1; Liang Guoan1; Yin Di2; Zhou Xiaoming2
(1.Special Equipment Safety Supervision and Inspection Institute of Jiangsu Province,Nanjing 210036,China)
(2.College of Mechanical and Electrical Engineering,Hohai University,Nanjing 210024,China)
Keywords:
phase change energy storage; metal foam; fins; porosity; paraffin wax
PACS:
TK02
DOI:
10.3969/j.issn.1001-4616.2024.02.002
Abstract:
In order to effectively improve the performance of PCM phase change heat reservoir,a variety of metal fins are used to strengthen the phase change process,and the enthalpy-porous medium model is used to simulate the phase change heat storage process. The effects of different metal materials and different matrix porosity on the characteristics of phase change heat storage and heat transfer are analyzed. The results show that the heat conduction and convective effect can be enhanced by the metal foam reinforced fin,and the convective vortex distribution in the flow field can be optimized. The heat storage time of the heat reservoir phase transformation is greatly shortened,which is only 16.8% of that in the condition without fins. The energy storage efficiency of copper metal foam fin is better than that of aluminum metal foam fin,and the heat storage time is shortened by 3.47%. The porosity of reinforced fin has a weak influence on the heat storage performance. When the porosity is 0.4,it is the best,followed by 0.6,and the worst when 0.8.

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Last Update: 2024-06-15