In today's society era of rapid economic development,energy consumption and air pollution become a serious social problem,people have to face.The scholars constantly study,explore more effective energy conservation and environmental protection technology.Valley electricity energy storage is widely used in this period,also after coal to gas,and a government encourage technology.Valley electricity energy storage power system is used to cut one of the important measures,which can effectively transfer the peak power,reduce the requirement of the electricity generation,will also be effective water saving,material saving.Study of phase change materials at home and abroad,in addition to crystal salt hydrate,composite phase change materials have been studied.Composite phase change materials can overcome the single phase transition characteristics of organic matter or inorganic matter,through test research to various advantages,make full use of the characteristics of the phase change element extends the scope of their respective use. |