Speeds of sound for ($CH_{4}$ + $He$) mixtures from $p$ = (0.5 to 20) MPa at $T$ = (273.16 to 375) K
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arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866909313453260800 |
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| author | Lozano-Martín, Daniel Rojo, Andres Martín, M. Carmen Vega-Maza, David Segovia, José Juan |
| author_facet | Lozano-Martín, Daniel Rojo, Andres Martín, M. Carmen Vega-Maza, David Segovia, José Juan |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_08128 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Speeds of sound for ($CH_{4}$ + $He$) mixtures from $p$ = (0.5 to 20) MPa at $T$ = (273.16 to 375) K Lozano-Martín, Daniel Rojo, Andres Martín, M. Carmen Vega-Maza, David Segovia, José Juan Chemical Physics 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. |
| title | Speeds of sound for ($CH_{4}$ + $He$) mixtures from $p$ = (0.5 to 20) MPa at $T$ = (273.16 to 375) K |
| topic | Chemical Physics |
| url | https://arxiv.org/abs/2409.08128 |