Experimental thermal conductivity values for hydrogen, methane, ethane and propane

Abstract

The experimental measurements of thermal conductivity as obtained in a transient hot wire apparatus for hydrogen, methane, ethane ana propane are recorded .

Measurements of Hydrogen Thermal Conductivity at High Pressure and High Temperature

“…It is also worth mentioning here that high-temperature, Fig. 1 Published data on hydrogen thermal conductivity [11][12][13][14][15][16][17][18][19] since 1966 high-pressure measurements of hydrogen thermal conductivity are currently in progress at NIST.…”

“…Figure 1 gives the positions on the pressure-temperature diagram where measurements of normal hydrogen thermal conductivity have been taken since 1966 (see Refs. [11][12][13][14][15][16][17][18][19]). The two largest data sets published for hydrogen thermal conductivity to date are those by Roder [11,12] (transient hot-wire method) and Roder and Diller [13] (guarded plate).…”

“…The reason for this sudden systematic deviation of the low-density data is unclear. The data of Roder [11,12] are also plotted in Fig. 15 along with data by a number of other authors [13][14][15][16][17][18][19].…”

“…In addition to the data shown in Fig. 1, Roder [11,12] also reported data for various concentrations of para-and ortho-hydrogen which are useful for calibration of thermal-conductivity meters used to measure the relative proportions of the two isomers [2,3]. Thermal-conductivity data for hydrogen with high reported accuracy have been taken using transient hot-wire instruments in the vicinity of room temperature [14][15][16].…”

Experimental thermal conductivity values for mixtures of methane and ethane

“…The system has been used previously to measure the thermal conductivity surfaces of oxygen [6], hydrogen [7,8,9,10], methane [10,11], ethane [10,12] and propane [10,13]. The (2) …”