Performance evaluation of the multiple layer latent heat thermal energy storage unit combined with nanoparticle for heat transfer enhancement

被引：0

作者：

Zhang C. ^{[1
]}

Wang N. ^{[2
]}

Xu H. ^{[1
]}

Luo Z. ^{[1
]}

机构：

[1] School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai

[2] MOE Key Laboratory of Thermo-Fluid Science and Engineering, Xi’an Jiaotong University, Shaanxi, Xi’an

来源：

Huagong Jinzhan/Chemical Industry and Engineering Progress | 2023年 / 42卷 / 05期

关键词：

exergy; heat transfer; latent heat thermal energy storage; nanomaterials; numerical simulation; phase change material;

D O I：

10.16085/j.issn.1000-6613.142022-1366

中图分类号：

学科分类号：

摘要：

Using latent heat thermal energy storage (LHTES) system can alleviate the mismatch between the energy supply and demand. In this paper, a vertical shell and tube LHTES unit was designed, and multiple layer phase change materials (PCMs) with melting temperatures of 35℃, 42℃, and 50℃ were filled. The nanoparticle of Al2O3 was added in PCM and heat transfer fluid for heat transfer enhancement. The thermal energy and exergy performance of the multiple LHTES unit were compared with the single layer unit. The thermal energy and exergy density evaluation criteria that comprehensively considered the volume of the composite PCM and the heat storage time were proposed. The effects of different nanoparticle volume fractions (1%, 3%, 5%, 7%, 9%, and 11%) on the performance of the multiple LHTES unit were analyzed. The results showed that compared to the single layer unit with a melting temperature of 50℃ of composite PCM, the heat storage time of the multiple LHTES unit was reduced by 29.81% under the same condition. Moreover, the multiple LHTES unit simultaneously presented higher thermal energy and exergy storage amounts. When the volume fraction of nanoparticles increased from 1% to 11%, the heat storage rate of the multiple LHTES unit could be improved by 21.31%, the thermal energy storage density increased by 15.61%, and the thermal exergy density decreased after reaching the maximum value of 3086J/(m3·s) at the volume fraction of the nanoparticle of 7%. Considering the volume of composite PCM, heat storage time, and total thermal energy and exergy storage amounts, the multiple LHTES unit presented the best performance with a nanoparticle volume fraction of 7%. Compared with the nanoparticle volume fraction of 1%, the thermal energy and exergy storage densities increased by 11.57% and 12.96%, respectively. This paper provided a theoretical reference for the application and optimization of multiple LHTES systems. © 2023 Chemical Industry Press. All rights reserved.

引用

页码：2332 / 2342

页数：10

共 26 条

[1] HUANG Haotian, XIAO Yimin, LIN Jianquan, Et al., Improvement of the efficiency of solar thermal energy storage systems by cascading a PCM unit with a water tank, Journal of Cleaner Production, 245, (2020)
[2] SHEN Yongliang, LIU Yunqi, LIU Shuli, Et al., A dynamic method to optimize cascaded latent heat storage systems with a genetic algorithm: A case study of cylindrical concentric heat exchanger, International Journal of Heat and Mass Transfer, 183, (2022)
[3] KUMAR Ashish, SAHA Sandip K., Performance study of a novel funnel shaped shell and tube latent heat thermal energy storage system, Renewable Energy, 165, pp. 731-747, (2021)
[4] NI Jinpeng, LUO Zhuqing, QU Zhiguo, Et al., Numerical analysis on heat transfer performance of phase change roofs under different climates, Chemical Industry and Engineering Progress, 41, 1, pp. 104-112, (2022)
[5] LUO Mingyun, LING Ziye, FANG Xiaoming, Et al., Research progress of battery thermal management system based on phase change heat storage technology, Chemical Industry and Engineering Progress, 41, 3, pp. 1594-1607, (2022)
[6] LIU Chang, CHEN Yanjun, ZHANG Chaocan, Low temperature phase change materials for subzero applications, Chemical Industry and Engineering Progress, 41, 1, pp. 286-299, (2022)
[7] SODHI Gurpreet Singh, MUTHUKUMAR P., Compound charging and discharging enhancement in multi-PCM system using non-uniform fin distribution, Renewable Energy, 171, pp. 299-314, (2021)
[8] ELSANUSI Omer S, NSOFOR Emmanuel C., Melting of multiple PCMs with different arrangements inside a heat exchanger for energy storage, Applied Thermal Engineering, 185, (2021)
[9] WANG Zeyu, DIAO Yanhua, ZHAO Yaohua, Et al., Visualization experiment and numerical study of latent heat storage unit using micro-heat pipe arrays: Melting process, Energy, 246, (2022)
[10] ZHANG Dongwei, ZHANG Fan, TANG Songzhen, Et al., Performance evaluation of cascaded storage system with multiple phase change materials, Applied Thermal Engineering, 185, (2021)

← 1 2 3 →