Viscosity of binary mixtures of hydrogen and natural gas (hythane) in the gaseous phase

A Capillary Tube Viscometer Designed for Measurements of Hydrogen Gas Viscosity at High Pressure and High Temperature

“…In Fig. 9, more detailed comparisons of the present results with existing data are shown, i.e., Michels et al [19], Golubev and Petrov [9], Tsederberg et al [20], and Nabizadeh and Mayinger [21]. The data by Golubev and Petrov deviate by at most 2 % compared with the present correlation, especially at high pressures and high temperatures.…”

Gaseous transport properties of hydrogen, deuterium and their binary mixtures fromab initiopotential

“…Recently, May et al [24] performed relative measurements with single-capillary and two-capillary viscometers to determine reference viscosity values for hydrogen up to 400 K. Their deviations decrease from þ0.72% down to þ0.41% with increasing temperature. The data of Mal'tsev et al [25] deviate by þ1.6% at 500 K, þ0.6% at 800 K and þ0.9% at 1100 K. The relative measurements of Nabizadeh and Mayinger [26], based on an oscillating-disk viscometer, lead to data differing from the theoretical values within �2.5%. Clifford et al [27] carried out absolute measurements and obtained results which are 0.94% at 298 K and 0.80% at 308 K higher than the calculated values, whereas the accurate value, recommended by Kestin and Nagashima [30] at room temperature, deviates by þ1.0%.…”

“…Figure 1 contains a plot of the deviations of some recent data [24,25] and the primary data [26][27][28][29][30][31] collected by Assael et al [32] from the theoretically calculated values for viscosity. Recently, May et al [24] performed relative measurements with single-capillary and two-capillary viscometers to determine reference viscosity values for hydrogen up to 400 K. Their deviations decrease from þ0.72% down to þ0.41% with increasing temperature.…”

Behavior of hydrogen-enriched non-premixed swirled natural gas flames

“…The hydrogen percentage content in the mixture is referred to the total volumetric fuel flow rate as follows: (1) where˙ is the volumetric flow rate under normal conditions. The fuel jet Reynolds number, Re, based on the fuel nozzle diameter (8 mm) was estimated at ambient temperature by using the dynamic viscosity calculated from a polynomial fit of the experimental data (at ∼ 300 K) of Nabizadeh et al [3]. Fuel mixture density, fuel , was computed by the weighted mean of natural gas and hydrogen densities with volumetric fractions as weights.…”