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翅片管潜热蓄热中相变材料的熔化强化

Melting enhancement of PCM in a finned tube latent heat thermal energy storage.

作者信息

Ahmed Sameh, Abderrahmane Aissa, Saeed Abdulkafi Mohammed, Guedri Kamel, Mourad Abed, Younis Obai, Botmart Thongchai, Shah Nehad Ali

机构信息

College of Science, King Khalid University, Abha, 61413, Saudi Arabia.

Department of Mathematics, Faculty of Science, South Valley University, Qena, 83523, Egypt.

出版信息

Sci Rep. 2022 Jul 7;12(1):11521. doi: 10.1038/s41598-022-15797-0.

DOI:10.1038/s41598-022-15797-0
PMID:35798795
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9262962/
Abstract

The current paper discusses the numerical simulation results of the NePCM melting process inside an annulus thermal storage system. The TES system consists of a wavy shell wall and a cylindrical tube equipped with three fins. The enthalpy-porosity method was utilized to address the transient behavior of the melting process, while the Galerkin FE technique was used to solve the system governing equations. The results were displayed for different inner tube positions (right-left-up and down), inner cylinder rotation angle (0 ≤ α ≤ 3π/2), and the nano-additives concentration (0 ≤ ϕ ≤ 0.04). The findings indicated that high values of nano-additives concentration (0.4), bigger values of tube rotation angle (3π/2), and location of the tube at the lower position accelerated the NePCM melting process.

摘要

本文讨论了环形蓄热系统内NePCM熔化过程的数值模拟结果。该蓄热系统由波浪形壳壁和装有三个翅片的圆柱形管组成。采用焓-孔隙率法处理熔化过程的瞬态行为，同时使用伽辽金有限元技术求解系统控制方程。给出了不同内管位置（左右上下）、内筒旋转角度（0≤α≤3π/2）和纳米添加剂浓度（0≤ϕ≤0.04）时的结果。研究结果表明，高纳米添加剂浓度值（0.4）、较大的管旋转角度值（3π/2）以及管位于较低位置会加速NePCM的熔化过程。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b547/9262962/6446b7d63fdf/41598_2022_15797_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b547/9262962/d84f31efe9a9/41598_2022_15797_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b547/9262962/7a0c0b1682f6/41598_2022_15797_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b547/9262962/f4a99c428497/41598_2022_15797_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b547/9262962/edf7d7c20e2f/41598_2022_15797_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b547/9262962/5f5e5ec6904a/41598_2022_15797_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b547/9262962/b3364e7b58fc/41598_2022_15797_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b547/9262962/af6064559119/41598_2022_15797_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b547/9262962/b91b03ef5111/41598_2022_15797_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b547/9262962/6446b7d63fdf/41598_2022_15797_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b547/9262962/d84f31efe9a9/41598_2022_15797_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b547/9262962/7a0c0b1682f6/41598_2022_15797_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b547/9262962/f4a99c428497/41598_2022_15797_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b547/9262962/edf7d7c20e2f/41598_2022_15797_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b547/9262962/5f5e5ec6904a/41598_2022_15797_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b547/9262962/b3364e7b58fc/41598_2022_15797_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b547/9262962/af6064559119/41598_2022_15797_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b547/9262962/b91b03ef5111/41598_2022_15797_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b547/9262962/6446b7d63fdf/41598_2022_15797_Fig9_HTML.jpg

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