RT info:eu-repo/semantics/article
T1 Speed of sound for three binary (CH4 + H2) mixtures from p = (0.5 up to 20) MPa at T = (273.16 to 375) K
A1 Lozano Martín, Daniel
A1 Martín González, María del Carmen
A1 Chamorro Camazón, César Rubén
A1 Tuma, Dirk
A1 Segovia Puras, José Juan
K1 Termodinámica
K1 Speed of sound
K1 Acoustic resonator
K1 Methane
K1 Hydrogen
K1 Heat capacities as perfect gas
K1 Virial coefficients
K1 3322.05 Fuentes no Convencionales de Energía
AB Speed of sound is one of the thermodynamic properties that can be measured with least uncertainty and is of great interest in developing equations of state. Moreover, accurate models are needed by the H2 industry to design the transport and storage stages of hydrogen blends in the natural gas network. This research aims to provide accurate data for (CH4 + H2) mixtures of nominal (5, 10, and 50) mol-% of hydrogen, in the p = (0.5 up to 20) MPa pressure range and with temperatures T = (273.16, 300, 325, 350, and 375) K. Using an acoustic spherical resonator, speed of sound was determined with an overall relative expanded (k = 2) uncertainty of 220 parts in 106 (0.022 %). Data were compared to reference equations of state for natural gas-like mixtures, such as AGA8-DC92 and GERG-2008. Average absolute deviations below 0.095% and percentage deviations between 0.029% and up to 0.30%, respectively, were obtained. Additionally, results were fitted to the acoustic virial equation of state and adiabatic coefficients, molar isochoric heat capacities and molar isobaric heat capacities as perfect-gas, together with second and third acoustic virial coefficients, and were estimated. Density second virial coefficients were also obtained.
PB Elsevier
SN 0360-3199
YR 2020
FD 2020
LK http://uvadoc.uva.es/handle/10324/43161
UL http://uvadoc.uva.es/handle/10324/43161
LA eng
NO International Journal of Hydrogen Energy 2020 45(7), pp. 4765-4783
NO Producción Científica
DS UVaDOC
RD 07-ago-2024