六水合氯化铁及七水合硫酸亚铁的导热系数的测量研究

Measurement of Thermal Conductivities of Salt Hydrates II. FeCl_3·6H_2O, FeSO_4·7H_2O

用热敏电阻作加热元件和测温元件 ,采用比较法首次测定了适合用作相变储能材料的六水合氯化铁、七水合硫酸亚铁在 10～ 80℃的导热系数 ,其实验导热系数的不准确度依次为 :± 2 .4 8%和± 2 .31% .同时 ,还报道了实验中观测到的六水合氯化铁、七水合硫酸亚铁的熔点依次为 35℃和 6 5℃ ,这些测量值在 1～

The thermal conductivities of FeCl 3·6H 2O and FeSO 4·7H 2O were measured in the temperature range from 10℃ to 80℃ by means of a calorimeter equipped with a thermistor, since they are considered as potential candidates for the thermal storage of energy. The uncertainties of the measured thermal conductivities were evaluated to be±2.48 % for FeCl 3·6H 2O and ±2.31% for FeSO 4·7H 2O,respectively. The melting temperatures were found to be 35℃ for FeCl 3·6H 2O and 65℃ for FeSO 4·7H 2O respectively. In the results, the measured temperatures of fusion agreed with the literature values .