| viXra.org > Thermodynamics and Energy > viXra:2012.0216 |
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| viXra.org > Thermodynamics and Energy > viXra:2012.0216 |
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Thermodynamics and Energy |
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Authors: Alexis Zaganidis
We derive a lower limit $\Delta H_{vap}^Z $ for the latent heat of vaporization $\Delta H_{vap}$ with respect to the pressure and the volume change of the phase transition from the study of a heat engine using liquid-gas as working fluid with an infinitesimal variation of the temperature $\delta T$ and an infinitesimal variation of the pressure $\delta P$ and in the vanishing limit of the massive flow rate $Q_m$. We calculate the latent heat index $h^Z= \Delta H_{vap}^Z/\Delta H_{vap}$ of few gas and at few different pressures $P$. Finally, we consider the latent heat index limit $h^Z_{cr}$ as the temperature $T$ approaches the critical temperature $T_{cr}$.
Comments: 4 Pages.
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[v2] 2021-01-17 12:29:14
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