Název: Investigation of droplet nucleation in CCS relevant systems – design and testing of the expansion chamber
Autoři: Čenský, Miroslav ; Hrubý, Jan ; Vinš, Václav ; Hykl, Jiří ; Šmíd, Bohuslav
Typ dokumentu: Příspěvky z konference
Konference/Akce: Experimental Fluid Mechanics 2017, Mikulov (CZ), 20171121
Rok: 2017
Jazyk: eng
Abstrakt: A unique in-house designed experimental apparatus for investigation of nucleation of droplets in CCS relevant systems is being developed by the present team. The apparatus allows simulating various processes relevant to CCS technologies. Gaseous mixtures with CO2 are prepared in a Mixture Preparation\nDevice (MPD) based on accurate adjustment of flow rates of individual components [EPJ Web of Conferences 143, 02140 (2017)]. The mixture then flows into an expansion chamber, where it undergoes a rapid adiabatic expansion. As a consequence of adiabatic cooling, the mixture becomes supersaturated and nucleation and simultaneous growth of droplets occurs. In this study, we describe the design and testing of the expansion part of the experimental setup. The rapid expansion was realized using two valve systems, one for low pressures (up to 0.7 MPa) and the other for high pressures (up to 10 MPa). A challenge for a proper design of the expansion system is avoiding acoustic oscillations. These can occur either in the mode of Helmholtz resonator, where the compressible gas in the chamber acts as a spring and the rapidly moving\ngas in the valve system as a mass, or in the “flute” mode, where acoustic waves are generated in a long outlet tubing.\n
Klíčová slova: carbon capture and storage; expansion chamber; experiment
Číslo projektu: 7F14466 (CEP), GA16-02647S (CEP)
Poskytovatel projektu: GA MŠk, GA ČR
Zdrojový dokument: Proceedings of the International conference Experimental Fluid Mechanics 2017

Instituce: Ústav termomechaniky AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v příslušném ústavu Akademie věd ČR.
Původní záznam: http://hdl.handle.net/11104/0279376

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-371049


Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav termomechaniky
Konferenční materiály > Příspěvky z konference