发展蓄冷技术是实现电网“移峰填谷”的一项重要措施。目前的蓄冷技术主要应用于大型建筑物的空调系统中，例如商场，机场，超市，等等，随着技术的发展，可望在中小型空调系统中得到应用，研究和发展蓄冷技术具有极大的理论和实用意义。 本文通过对多种二元共晶盐的特性的对比分析，找到了一种相变温度为５℃的共晶盐蓄冷材料，其具有相变性能稳定，融解潜热较大，相分离小等优点，有望在家庭、小型办公室中得到应用。 通过建立的蓄冰板蓄冷实验台，对上述共晶盐蓄冷材料的蓄冷和释冷特性进行实验研究，主要研究制冷剂出口温度、载冷剂进口温度和载冷剂流量对蓄、释冷特性的影响；并对相变界面的移动规律、蓄释冷过程的传热特性进行了理论分析。结果表明: (1) 蓄冷时，蓄冷槽入口制冷剂温度对蓄冷特性的影响较载冷剂流量的影响显著；释冷时，载冷剂进口温度对释冷特性的影响较载冷剂的流量对其的影响显著。通过对蓄冷过程进行分析，得出蓄冷效果最好的制冷剂出口温度为1℃，载冷剂的流量为0.247 m3/h；而释冷过程中载冷剂的进口温度和流量分别是10℃和0.235m3/h时最佳。 (2) 蓄冷和释冷过程中，载冷剂侧和蓄冰板的传热热阻与冰板内蓄冷材料换热热阻相比小得多，因此强化换热的重点在于增强蓄冰板内蓄冷材料与载冷剂的换热系数。

Developing cool thermal energy storage technology is an important measure to realize shifting electrical energy demand from peak period to off-peak period. At present, cool storage technology is applied mainly to air-conditioning in buildings, but it’s potential to extend its application range with the development of technology. Therefore, the research and development of low-temperature cool storage has important theoretical and practical significance. A sort of binary eutectic salt was found by experiments with phase change temperature of 5℃ and merits of phase change performance stabilization, large latent, no phase segregation and so on. The results show that this cool storage materials is hopeful to been applied in the field of beer freeze plant, freezer and some chemical industry as cool storage material. A cool storage experimental apparatus with internal melt ice-on-coil was set up, and on which the heat-transfer characteristics have been determined. The effects of inlet temperature and flow rate of coolant on the heat-transfer characteristics have been primarily studied, the experimental results show as follow: (1) The inlet temperature of refrigerant ，when entering the ice storage tank, has an larger influence on the process of cool storage than the Flow amount o the cooling medium. It is found by analyzing the process of experiment about storage that the suitable outlet temperature of the cooling medium is 1℃ while the flow amount of the cooling medium is 0.247 m3/h, and the suitable temperature of inlet is 10℃ while the flow amount of the cooling medium is 0.235m3/h. (2) In the process of cool charge and discharge, the thermal transference resistance of the cooling medium and the ice on flat is very smaller than that of the thermal transference resistance of the eutectic salt of the ice on flat, so the emphasis of heat transfer enhancement lies in increasing the conduction coefficient of the cool storage material of the ice on flat outside the cooling medium.