| Autor: |
Lozano-Martín, Daniel, Rojo, Andres, Martín, M. Carmen, Vega-Maza, David, Segovia, José Juan |
| Rok vydání: |
2024 |
| Předmět: |
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| Zdroj: |
The Journal of Chemical Thermodynamics Volume 139, 2019, 105869 |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1016/j.jct.2019.07.011 |
| Popis: |
This work aims to provide accurate and wide-ranging experimental new speed of sound data $w$($p$,$T$) of two binary ($CH_{4}$ + $He$) mixtures at a nominal helium content of 5% and 10% at pressures $p$ = (0.5 up to 20) MPa and temperatures $T$ = (273.16, 300, 325, 350 and 375) K. For this purpose, the most accurate technique for determining speed of sound in gas phase has been used: the spherical acoustic resonator. Speed of sound is determined with an overall relative expanded ($k$ = 2) uncertainty of 230 parts in $10^{6}$ and compared to reference models for multicomponent natural gas-like mixtures: AGA8-DC92 and GERG-2008 equations of state. Relative deviations of experimental data from model estimations are outside the experimental uncertainty limit, although all points are mostly within the AGA uncertainty of 0.2% and GERG uncertainty of 0.5% and worsen as the helium content increases. Absolute average deviations are better than 0.45% for GERG and below 0.14% for AGA models in (0.95 $CH_{4}$ + 0.05 $He$) mixture and below 0.83% for GERG and within 0.22% for AGA equations in (0.90 $CH_{4}$ + 0.10 $He$) mixture. |
| Databáze: |
arXiv |
| Externí odkaz: |
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