三水醋酸钠(CH3COONa.3H2O)由于潜热较高而常作为相变储能材料被众多学者研究;而其适宜的熔点,使其能适用于家用热水储能系统等。然而,三水合醋酸钠在相变过程中存在着严重的过冷和相分离的问题。本文以三水合醋酸钠作为相变基体材料,经研究、比较分别以羧甲基纤维素、明胶作为增稠剂,添加各种成核剂后的各体系的相变储能性能,从而得出羧甲基纤维素比明胶作为该体系的增稠剂的效果好得多,Na2SiO3.9H2O、Na2B4O7.10H2O的成核效果较好。 Due to the high latent heat, sodium acetate trihydrate (CH3COONa.3H2O) is often studied as a phase change energy storage material, and its suitable melting point makes it suitable for domestic hot water storage systems. However, there is a serious problem of undercooling and phase separation in the phase transition of sodium acetate trihydrate. In this paper, sodium acetate trihydrate as the phase change matrix material, after the study, respectively, compared with carboxymethyl cellulose, gelatin as a thickener, after adding various nucleating agents after each phase change energy storage performance, resulting in Carboxymethyl cellulose is much better than gelatin as the thickener of this system. The nucleation effects of Na2SiO3.9H2O and Na2B4O7.10H2O are better.