适用与蓄冷空调的二元相变蓄冷材料的测试与研究

Research and Test on Dualism Phase Change Material for Cool Storage

研究了空调蓄冷技术对蓄冷相变材料各种性质的要求,提出了一种新型的二元相变低共熔蓄冷介质并进行了性能测试,该介质的凝固温度为4.8～5.3℃,固—液相变潜热为149kJ?kg,主要成分为辛酸和月桂酸构成的低共熔混合物,其特点是材料有良好的可重复使用性,潜热和显热蓄冷量大,是一种有发展前途的蓄冷介质。

In this paper,the requirements of phase change materials character for air condi-tioning cool storage has been researched,we formulated a new dualism phase change material with a freezing temperature of 4.8-5.3℃,latent heat as high as149kJ?kg,compositions of CH 3 (CH 2 ) 6 COOH and CH 3 (CH 2 ) 10 COOH.With its components good repeatability and higher thermal storage amounts of latent or sensible heat,it is a competitive cool storage mate-rial that has developing prospects.