高温显热-潜热复合储热系统传热特性研究

doi:10.12028/j.issn.2095-4239.2017.0061

储能科学与技术 ›› 2017, Vol. 6 ›› Issue (4): 719-725.doi: 10.12028/j.issn.2095-4239.2017.0061

高温显热-潜热复合储热系统传热特性研究

王艳，白凤武，杨贝，王志峰

中国科学院太阳能热利用及光伏系统重点实验室，中国科学院电工研究所，北京 100190

收稿日期:2017-05-18 修回日期:2017-06-02 出版日期:2017-07-01 发布日期:2017-07-01
通讯作者: 王艳（1978—），女，副教授，研究方向为太阳能热利用领域的高温储热，E-mail：wangyan955@126.com。
基金资助:
国家自然科学基金（51306170），国家科技支撑计划（2014BAA01B01）项目。

Heat transfer behavior of a combined sensible-latent thermal energy storage system for high temperature appilications

WANG Yan, BAI Fengwu, YANG Bei, WANG Zhifeng

The Key Laboratory of Solar Thermal Energy and Photovoltaic System, IEE-CAS, Beijing 100190, China

Received:2017-05-18 Revised:2017-06-02 Online:2017-07-01 Published:2017-07-01

摘要/Abstract

摘要： 储热是解决可再生能源供需不匹配的重要手段。本文对以空气为传热介质，以显热材料—高铝陶瓷球和潜热材料—熔融盐相变管为储热材料的高温显热-潜热复合储热系统的传热特性开展了实验研究。研究结果表明：在充放热过程中，利用熔盐相变储热材料稳定的相变温度特性，可以有效地提升固体堆积床储热系统的热稳定性。显热-潜热复合储热系统的循环热效率达到75%左右，高于全显热固体堆积床储热系统。

关键词: 熔盐相变管, 显热-潜热复合储热, 热稳定性, 循环热效率

Abstract: Thermal energy storage (TES) is a key technology to resolve issues of dispatchability and load shift of renewable energy utilization. In this paper, we present an experimental study on a high-temperature combined sensible-latent TES, which uses air as heat transfer fluid, alumina rich ceramic balls as sensible storage material and salt as latent heat storage material. The results showed that the thermal stability of packed-bed based TES system was improved during both charging and discharging processes when PCM was used because the PCM released heat at an almost constant temperate at the phase point. The cyclic efficiency of the combined sensible-latent TES system was about 75%, which was higher than the sensible TES system.

Key words: molton salt phase change pipe, sensible-latent thermal storage system, thermal stability, cyclic efficiency

王艳，白凤武，杨贝，王志峰. 高温显热-潜热复合储热系统传热特性研究[J]. 储能科学与技术, 2017, 6(4): 719-725.

WANG Yan, BAI Fengwu, YANG Bei, WANG Zhifeng. Heat transfer behavior of a combined sensible-latent thermal energy storage system for high temperature appilications[J]. Energy Storage Science and Technology, 2017, 6(4): 719-725.

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高温显热-潜热复合储热系统传热特性研究

Heat transfer behavior of a combined sensible-latent thermal energy storage system for high temperature appilications

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