Vorträge und Posterpräsentationen (mit Tagungsband-Eintrag):
T. Loimer:
"The thermodynamic states of a fluid in a Joule-Thomson process involving phase changes at interfaces with large curvature";
Poster: 12th Joint European Thermodynamics Conference,
Brescia;
01.07.2013
- 05.07.2013; in: "Proceedings of the 12th Joint European Thermodynamics Conference",
M. Pilotelli, G. P. Beretta (Hrg.);
Snoopy,
(2013),
ISBN: 978-88-89252-22-2;
S. 537
- 541.
Kurzfassung englisch:
In the classical experiment of Joule and Thomson, a gas passes through a porous plug. The pressure difference between the upstream and the downstream side of the porous plug causes a temperature difference. Here, the flow process is described for the case that the fluid may condense, and the pressure loss is caused by a thin capillary. The process is calculated assuming local thermodynamic equilibrium and one-dimensional temperature and pressure distributions, respectively.
A vapor far from saturation does not condense, and the temperature and pressure distribution for the common Joule-Thomson process is recovered. A vapor close enough to saturation may condense partially or completely, and a liquid or a two-phase mixture flows through a part of the capillary. The thermodynamic path of the fluid is presented in temperature-entropy and pressure-temperature diagrams.
Erstellt aus der Publikationsdatenbank der Technischen Universität Wien.