On Numerical Modeling of Thermal Performance Enhancementof a Heat Thermal Energy Storage System Using a Phase Change Material and a Porous Foam

多孔性 材料科学 热力学 相变材料 雷诺数 多孔介质 格子Boltzmann方法 热能储存 热的 背景(考古学) 金属泡沫 机械 复合材料 湍流 物理 古生物学 生物
作者
Riheb Mabrouk,Hassane Naji,Hacen Dhahri,Zohir Younsi
出处
期刊:Computation (Basel) [MDPI AG]
卷期号:10 (1): 3-3 被引量:2
标识
DOI:10.3390/computation10010003
摘要

In this investigation, a comprehensive numerical analysis of the flow involved in an open-ended straight channel fully filled with a porous metal foam saturated and a phase change material (paraffin) has been performed using a single relaxation time lattice Boltzmann method (SRT-LBM) at the representative elementary volume (REV) scale. The enthalpy-based approach with three density functions has been employed to cope with the governing equations under the local thermal non-equilibrium (LTNE) condition. The in-house code has been validated through a comparison with a previous case in literature. The pore per inch density (10≤PPI≤60) and porosity (0.7≤ε≤0.9) effects of the metal structure were analyzed during melting/solidifying phenomena at two Reynolds numbers (Re = 200 and 400). The relevant findings are discussed for the LTNE intensity and the entropy generation rate (Ns). Through the simulations, the LTNE hypothesis turned out to be secure and valid. In addition, it is maximum for small PPI value (=10) whatever the parameters deemed. On the other hand, high porosity (=0.9) is advised to reduce the system’s irreversibility. However, at a moderate Re (=200), a small PPI (=10) would be appropriate to mitigate the system irreversibility during the charging case, while a large value (PPI = 60) might be advised for the discharging case. In this context, it can be stated that during the melting period, low porosity (=0.7) with low PPI (=10) improves thermal performance, reduces the system irreversibility and speeds up the melting rate, while for high porosity (=0.9), a moderate PPI (=30) should be used during the melting process to achieve an optimal system.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
大幅提高文件上传限制,最高150M (2024-4-1)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
善学以致用应助酷酷从雪采纳,获得10
刚刚
传奇3应助斯文的傲珊采纳,获得10
1秒前
1秒前
yanxuhuan发布了新的文献求助10
1秒前
花园荆棘发布了新的文献求助10
3秒前
qqq完成签到,获得积分20
4秒前
111完成签到,获得积分10
4秒前
5秒前
5秒前
在水一方应助tingfeng采纳,获得200
5秒前
xiaoyanyan发布了新的文献求助10
5秒前
大卫在分享应助tang采纳,获得10
8秒前
呵呵呵呵呵呵123完成签到,获得积分10
8秒前
9秒前
peng发布了新的文献求助10
10秒前
天马行空发布了新的文献求助10
10秒前
10秒前
Tidy完成签到,获得积分10
10秒前
11秒前
1111发布了新的文献求助10
12秒前
米虫完成签到,获得积分10
12秒前
12秒前
12秒前
ACY完成签到,获得积分10
12秒前
enen发布了新的文献求助10
13秒前
我是老大应助qqq采纳,获得10
14秒前
14秒前
ZHD发布了新的文献求助10
15秒前
乔乔完成签到,获得积分10
16秒前
18秒前
18秒前
酷酷从雪发布了新的文献求助10
19秒前
端木熙完成签到,获得积分20
20秒前
20秒前
21秒前
22秒前
22秒前
22秒前
wxk完成签到,获得积分10
23秒前
220044完成签到 ,获得积分10
24秒前
高分求助中
Sustainability in Tides Chemistry 2800
The Young builders of New china : the visit of the delegation of the WFDY to the Chinese People's Republic 1000
юрские динозавры восточного забайкалья 800
English Wealden Fossils 700
Foreign Policy of the French Second Empire: A Bibliography 500
Chen Hansheng: China’s Last Romantic Revolutionary 500
XAFS for Everyone 500
热门求助领域 (近24小时)
化学 医学 生物 材料科学 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 基因 遗传学 催化作用 物理化学 免疫学 量子力学 细胞生物学
热门帖子
关注 科研通微信公众号,转发送积分 3145115
求助须知:如何正确求助?哪些是违规求助? 2796489
关于积分的说明 7819996
捐赠科研通 2452771
什么是DOI,文献DOI怎么找? 1305202
科研通“疑难数据库(出版商)”最低求助积分说明 627448
版权声明 601449