文档介绍：摘要

相变储能材料是提高能源利用率的有效手段,在电力系统调峰、太阳能
利用、航空航天、余热回收、采暖空调及家用电器工业等领域有广泛的应用。
根据文献可知,CaCl2•6H2O 是一种无机水合盐类相变储能材料。***化钙
在自然界中大多以 CaCl2•2H2O 形式存在,由于CaCl2•2H2O 的工业应用价值不
高,为了提高其经济利用价值,并考虑到节能和环保的因素,本课题研究了
CaCl2·2H2O 制备 CaCl2·6H2O 的实验方法,实验测定了 CaCl2·6H2O的DSC
曲线和 TG 曲线,根据曲线确定了 CaCl2·6H2O 的相变潜热和熔点。实验还研
究了 CaCl2·6H2O 的过冷和相分离现象,并对其过冷及相分离现象提出了具
体的解决方案。课题旨在寻找能与 CaCl2·6H2O 相结合的工业产品,要求它
既能利用 CaCl2·6H2O 良好的相变储热性质,又能达到节能和环保的目的。
在此研究思想的指导下,课题设计并制作出了 CaCl2·6H2O 相变储能材料换
热器实验系统,并通过实验研究了此相变储能材料的封装、换热器的储热性
能、热能的储存与释放特性等,对此系统的节能效果进行了分析,计算出了
添加 ·6H2O 的 PCM 换热器可储存热量。实验证明该相
变储能换热器一天能节约用煤 ,显示其具有一定的节能效果,较好
地达到了课题要求。
综合课题研究成果可知,此相变储能材料换热器系统可合理有效地将相
变储能材料换热器和现有的采暖系统相结合,具有一定的储热保温性能,能
够节约能源。符合国家的“绿色能源”、“低碳经济”政策和发展趋势,有一
定的实际应用价值和市场前景。

关键词: 六水***化钙;相变储能材料;储热保温;换热器
Abstract

Phase change matertial is an effective means of improving energy
efficiency. It has a wide range of application areas on electric power system of
peak shaving, utilize of solar energy, aviation and spaceflight, reclaim of waste
heat, heating and air conditioning, industry of household electric appliance and
so on.
According to literatures, CaCl2 • 6H2O is an anic hydrated salt phase
change materials. Most of the calcium chloride in nature is existed as the form
of CaCl2•2H2O, because of the CaCl2•2H2O has little industrial application, in
order to enhance its economic value, and with a view of energy conservation and
environmental conservation factors, This thesis is study experiment method on
preparation of CaCl2•6H2O used CaCl2•2H2O, and determine the phase
transition latent heat and melting point of CaCl2•6H2O by it’s curve of DSC and
TG. Put forward the idiographic solutions on undercooling and phase separation.
This thesis was undertaken to search a industrial products which can
combinative with CaCl2•6H2O , require it not only used good nature of energy
storage character, but also execute a purpose of energy conservation and
environmental cons