根据瞬态热线法原理,搭建了新的热导率测量实验装置。用标准物质氮气对该实验台进行了检验,结果表明该实验台测量结果准确可靠。对HFC161气相热导率在温度范围为253~373 K、压力范围为139.9~4470.3 kPa进行了实验测量,并将实验结果拟合成温度与压力的多项式,为以后的进一步研究提供计算依据。 According to the principle of transient hot-wire method, a new thermal conductivity measurement experimental set up. The test bench was tested with standard nitrogen gas, the results show that the test bench measurement results are accurate and reliable. The gas phase thermal conductivity of HFC161 was measured at a temperature range of 253 ~ 373 K and a pressure range of 139.9 ~ 4470.3 kPa. The experimental results were fitted to a polynomial of temperature and pressure, which provided the basis for further research.