Dynamic discharging characteristics of absorption thermal battery under different capacity regulation strategies

被引：1

作者：

Ding Z. ^{[1
]}

Wu W. ^{[1
]}

机构：

[1] School of Energy and Environment, City University of Hong Kong, Hong Kong

来源：

Energy and Built Environment | 2023年 / 4卷 / 03期

关键词：

Absorption thermal battery; Adjustable discharging rate; Capacity regulation; Thermal energy storage; Variable flow rate;

D O I：

10.1016/j.enbenv.2022.02.004

中图分类号：

学科分类号：

摘要：

Thermal battery plays an important role in renewable energy utilization towards carbon neutrality. The novel absorption thermal battery (ATB) has excellent performance but suffers from serious capacity attenuation. To address this problem, two capacity regulation methods, i.e., variable solution flow and variable cooling water flow, are proposed to achieve a demanded discharging rate. The effects of the two regulation strategies on the dynamic discharging characteristics and overall storage performance are comparatively investigated. To demonstrate the adjustability of the output capacity, several stable discharging rates are successfully maintained by the proposed methods. To maintain a higher discharging rate, the stable discharging time has to be sacrificed. As the demanded output increased from 0.5 kW to 6.0 kW, the stable discharging time decreased from 781.8 min to 27.9 min under variable solution flow and from 769.9 min to 30.7 min under variable cooling water flow. With the increase of solution or water flow rate, the energy storage density is improved, while the energy storage efficiency is slightly increased first and decreased later. The regulation method of variable water flow shows relatively lower energy storage efficiency due to the larger pump power. This study could facilitate reasonable development and application of ATB cycles. © 2022 Southwest Jiatong University

引用

页码：341 / 353

页数：12

共 48 条

[1]

Odukomaiya A., Woods J., James N., Kaur S., Gluesenkamp K.R., Kumar N., Et al., Addressing energy storage needs at lower cost via on-site thermal energy storage in buildings, Energy Environ. Sci., 14, pp. 5315-5329, (2021)

[2]

Yu N., Wang R., Wang L., Sorption thermal storage for solar energy, Prog. Energy Combust. Sci., 39, pp. 489-514, (2013)

[3]

Kocak B., Fernandez A.I., Paksoy H., Review on sensible thermal energy storage for industrial solar applications and sustainability aspects, Sol. Energy, 209, pp. 135-169, (2020)

[4]

Singh H., Saini R., Saini J., A review on packed bed solar energy storage systems, Renewable Sustainable Energy Rev., 14, pp. 1059-1069, (2010)

[5]

Li Y., Nord N., Wu H., Yu Z., Huang G., A study on the integration of air-source heat pumps, solar collectors, and PCM tanks for outdoor swimming pools for winter application in subtropical climates, J. Building Perform. Simul., 13, pp. 662-683, (2020)

[6]

Ding Z., Wu W., Chen Y., Li Y., Dynamic simulation and parametric study of solar water heating system with phase change materials in different climate zones, Sol. Energy, 205, pp. 399-408, (2020)

[7]

Wu M., Li T., Wang P., Wu S., Wang R., Lin J., Dual-Encapsulated Highly Conductive and Liquid-Free Phase Change Composites Enabled by Polyurethane/Graphite Nanoplatelets Hybrid Networks for Efficient Energy Storage and Thermal Management, Small, (2021)

[8]

Khare S., Dell'Amico M., Knight C., McGarry S., Selection of materials for high temperature sensible energy storage, Sol. Energy Mater. Sol. Cells, 115, pp. 114-122, (2013)

[9]

Li Y., Nord N., Huang G., Li X., pp. 1-20, (2020)

[10]

Zhou Y., Zheng S., Liu Z., Wen T., Ding Z., Yan J., Et al., Passive and active phase change materials integrated building energy systems with advanced machine-learning based climate-adaptive designs, intelligent operations, uncertainty-based analysis and optimisations: A state-of-the-art review, Renewable Sustainable Energy Rev., 130, (2020)

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