化工进展 ›› 2021, Vol. 40 ›› Issue (S2): 211-218.DOI: 10.16085/j.issn.1000-6613.2021-1329

• 材料科学与技术 • 上一篇    下一篇

吸附蓄热材料性能研究进展

高士超(), 王树刚(), 胡沛裕, 王继红, 张腾飞, 辛全昊   

  1. 大连理工大学建设工程学部,辽宁 大连 116024
  • 收稿日期:2021-06-24 修回日期:2021-07-09 出版日期:2021-11-12 发布日期:2021-11-12
  • 通讯作者: 王树刚
  • 作者简介:高士超(1998—),男,硕士研究生,研究方向为建筑节能与蓄热。E-mail:gaoshichao666@163.com
  • 基金资助:
    国家重点研发计划(2018YFC0807902);国家自然科学基金(51678102)

The state of the art on performance of sorption heat storage materials

GAO Shichao(), WANG Shugang(), HU Peiyu, WANG Jihong, ZHANG Tengfei, XIN Quanhao   

  1. Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China
  • Received:2021-06-24 Revised:2021-07-09 Online:2021-11-12 Published:2021-11-12
  • Contact: WANG Shugang

摘要:

可再生能源的利用不仅可降低环境污染,还有助于实现“碳中和”目标,蓄热技术是有效利用太阳能等不稳定可再生能源的重要途经之一。热化学蓄热材料由于储能密度高、热损失小等优点可实现低品位热能的跨季节应用。本文对现有文献内吸附蓄热材料的蓄热性能进行总结分析,对比四类蓄热材料在不同运行工况下的储能密度、输出功率与蓄热效率等蓄热性能,并论述各类材料的典型应用案例。文中指出:溶液吸收材料脱附温度较低,但系统传热传质性能较差,实际应用中无法满足建筑供暖需求;固体吸附材料循环稳定性好,可采用太阳能集热器作为热源使其再生,它是目前建筑供暖中具有较大潜力的蓄热材料;纯热化学反应材料储能密度最高,然而其循环稳定性差,仍处于实验室研究阶段;兼有固体吸附材料与无机盐优点的复合材料有望成为建筑内理想的蓄热材料。最后文章针对各类材料提出其未来的研究方向。

关键词: 吸附, 蓄热, 材料, 热化学, 性能

Abstract:

The utilization of renewable energy not only reduces environmental pollution, but also contributes to the goal of“carbon neutralization”?. Thermal energy storage is one of the important ways to effectively use unstable renewable energy such as solar energy. Thermochemical heat storage materials can be applied for seasonal heat storage due to their high energy storage density and little heat loss. This paper summarizes and analyzes the heat storage performance of sorption heat storage materials in the literature. The energy storage density, output power and heat storage efficiency of the four kinds of heat storage materials under different operating conditions are compared. The typical application cases of each kind of materials are discussed. The solution absorption material has the low desorption temperature. Moreover, the poor heat and mass transfer of the corresponding system fails in meeting the demand of building heating in practical application. The solid adsorption material has the excellent cycling stability and can be regenerated by solar energy collector, which is a potential heat storage material in building heating. The pure thermochemical reaction material has the highest energy storage density, but its cycling stability is inferior, which is still in the laboratory research stage. The composite material with the advantages of solid adsorption material and inorganic salt is expected to be ideal heat storage material in buildings. Finally, the future research directions of various materials are proposed to promote the further development of sorption heat storage technology.

Key words: sorption, heat storage, material, thermochemical, performance

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