New experimental data for the thermal conductivity of cis-1,1,1,4,4,4-hexafluoro-2-butene (R-1336mzz(Z)) are reported for vapor, liquid and supercritical states. These data were obtained with transient hot-wire apparatus over the temperature range from 192 K to 498 K and at pressures from 0.05 MPa to 69 MPa. These data were used to develop a wide-range correlation for the thermal conductivity of the vapor, liquid, and supercritical fluid. The experimental data reported here have an uncertainty of 1 % for the liquid and supercritical regions (densities above 600 kg·m-3), 1.5 % for vapor and supercritical regions (pressures greater than or equal to 1 MPa and densities less than 200 kg·m-3), 3 % for supercritical states (densities between 200 kg·m-3 and 600 kg·m-3), and 3 % for vapor and supercritical states (pressures below 1 MPa). The thermal-conductivity correlation developed in this work is estimated to have an expanded relative uncertainty, at a 95 % confidence level, ranging from approximately 1.4 % to 4.2 % depending on the temperature and pressure, with larger uncertainties in the critical region.

中文翻译：

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顺式1,1,1,4,4,4-六氟-2-丁烯热导率的测量和相关性

顺式 1,1,1,4,4,4-六氟-2-丁烯 (R-1336mzz(Z)) 的热导率的新实验数据报告为蒸气、液体和超临界状态。这些数据是使用瞬态热线装置在 192 K 至 498 K 的温度范围和 0.05 MPa 至 69 MPa 的压力下获得的。这些数据用于开发蒸汽、液体和超临界流体的热导率的广泛相关性。此处报告的实验数据对于液体和超临界区域（密度高于 600 kg·m-3）的不确定度为 1 %，对于蒸汽和超临界区域（压力大于或等于 1 MPa，密度小于 200 kg）的不确定度为 1.5 % ·m-3)，超临界状态（密度在 200 kg·m-3 和 600 kg·m-3 之间）为 3 %，蒸汽和超临界状态（压力低于 1 MPa）为 3 %。