导电溶液导热系数的测定

Determination of Thermal Conductivity for Conductive Liquid

用比较瞬时法测定新型复合肥溶液在ｐＨ＝２，浓度为１５％，２０％，３０％，５０％，６０％，７０％和温度为２０，３０，４０，５０，６０℃下的导热系数。测量误差在±２％以内。其导热系数与样品的浓度有着密切的联系，在较低浓度１５％，２０％，３０％时，其导热系数随温度升高呈线性变化；在较高浓度５０％，６０％，７０％时，导热系数随温度的升高而呈曲线变化，我们认为：温度较高时。是因样品内有微量分解所致。

Using a small bead-in-glass thermistor probe as a heating element,thermal conductivity ofsix concentration conductive liquid was determined by transient method.The experimental result wasdiscussed。