论文部分内容阅读
建立了流动型高压液体及其混合物定压比热容的测量装置．该装置测量压力可达１２ＭＰａ，温度范围为２６０～４７０Ｋ．利用所建的装置测量了纯水的定压比热容，测量结果与文献值比较其偏差在±０．６％以内．该装置的建成为进一步开展液体及其混合物定压比热容的研究创造了条件．文中给出了利用该装置测量ＨＦＣ１５２ａ／ＨＣＦＣ２２混合工质定压比热容的测量结果．
A measuring device of flow-type high-pressure liquid and its mixture at constant pressure specific heat capacity was established. The device measures the pressure up to 12MPa, the temperature range of 260 ~ 470K. The built-in device was used to measure the specific heat at constant pressure of pure water. The measured results were within ± 0.6% of the reference values. The establishment of this device has created the conditions for further research on the specific heat capacity of liquids and their mixtures. The paper gives the measurement results of the apparatus for measuring the heat capacity of constant pressure ratio of HFC152a / HCFC22 mixture.