相变蓄冷材料的选择与相变潜热的测定

从物质的热物性、化学性质、相变动力学和经济性四个方面详细阐述了理想相变蓄冷材料的选择依据.建立了简便、实用测量固液相变潜热的装置,同时利用该装置测量出豆蔻酸、羊蜡酸等物料的热力学参数.通过测量,可选择出接近于理想的蓄冷物质,为小型制冷装置提供可靠、经济的冷源.

Study on cold energy storage material of phase-change and mensuration of phase-change potential heat

This paper expatiated the selective dependence of the ideal phase change materials from four aspects of thermodynamics characteristic, chemistry characteristic of the matter, phase change dynamics and economics. A new device which can measure the solid-liquid phase change latent heat has been set up, at the same time, using this device can measure the thermodynamics parameters of myristics acrid,capric acrid and other materials. Based on the measurement, it can be selected approximately ideal phase change materials, which can provide reliability and economic cold-energy for small refrigeration device.