高温熔融盐纳米固液相变复合材料研究进展  

Progress in Research of High Temperature Molten Salt Nanocomposite-Phase Change Material

作　　者：史建春 崔海亭[2] 

机构地区：[1]石家庄市节能监察中心,石家庄050021 [2]河北科技大学机械工程学院,石家庄050018

出　　处：《新能源进展》2016年第2期94-99,共6页Advances in New and Renewable Energy

基　　金：河北省自然科学基金(E2014208005);河北省教育厅科学研究计划重点项目(ZH2012079)

摘　　要：熔融盐是一种非常有前景的高温液体传热蓄热工质,在太阳能热发电、余热回收及工业热利用方面有显著的优势,但是熔融盐本身存在导热性能不高等问题。本文对纳米复合相变材料固液相变储能过程的若干最新研究进行了回顾,综述了熔融盐纳米固液相变复合材料国内外研究现状及发展趋势,最后对纳米复合相变材料固液相变储能过程的未来发展和重点研究方向进行了展望,认为主要解决纳米复合材料内熔化相变传热双温度模型的建立及求解、NC-PCM的制备工艺、金属纳米粒子的团聚性及NC-PCM蓄热器的热循环实验等方面的问题是未来研究的重点。Mixed molten salts are considered as promising media for both heat transfer and thermal energy storage andthey have obvious advantages in solar thermal power generation, waste heat utilization and industrial process heat use.However, molten salts phase change materials still have disadvantages of low thermal conductivity. Recent studies ofsolid-liquid phase change energy storage processes and the state-of-the-art development of the nanocomposite phasechange material were reviewed. According to the review of the future development and important research direction ofsolid-liquid phase change energy storage processes of nanocomposite phase change materials, it is necessary to conduct theresearch in various aspects including the establishment of two temperature model of phase change heat transfer in thenanocomposite melting, NC-PCM mixing process, aggregation of metal particles and thermal cycling test of NC-PCMstorage unit problem.

关 键 词：高温熔融盐 纳米相变材料 导热系数 蓄热系统 传热特性 

分 类 号：TK513[动力工程及工程热物理—热能工程]