【摘要】 实验制备出一种相变储热材料(PCM),其质量百分比基本组成为:Na2HPO4·12H2O(87.0％),Na2B4O7·10H2O(8.7％),CaCO3(4.3％)。DSC测得其相变热与热容分别为95.97 J/g和0.75J/(g·K)。利用该相变储热材料进行了甲烷吸附储存时吸附热效应的控制实验,结果表明在吸附罐中加入体积含量为6.1％的相变储热材料后,甲烷吸附时能使储罐中心最高温度降低21.3℃,而脱附时能使储罐中心最低温度提高22.3℃。在吸附储罐内加入PCM能使甲烷的有效释放体积比提高37％。更多还原

【Abstract】 A phase change material (PCM) composing Na2HPO4 · 12H2O (87.0%), Na2B4O7 · 10H2O (8.7%), CaCO3 (4.3%) was developed, and the phase change heat and thermal capacity of the PCM was respectively 95.97 J/g and 0.75J/ (g·K) measured by DSC method. The experiment results indicated that adding 6.10% volume of the adsorbent in the adsorption chamber, the highest temperature in center of the adsorption chamber was reduced 21.3℃ and the lowest temperature was increased 22.3℃ in the desorption chamber. It can be used in controlling the heat effect of adsorption process for adsorbed natural gas or methane. The delivered methane volume was increased 37% as adding PCM in the adsorption chamber.更多还原