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EXPERIMENTAL APPARATUS FOR MEASUREMENT OF DENSITY OF SUPERCOOLED WATER AT HIGH PRESSURE
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SYSNO ASEP 0368096 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title EXPERIMENTAL APPARATUS FOR MEASUREMENT OF DENSITY OF SUPERCOOLED WATER AT HIGH PRESSURE Author(s) Hrubý, Jan (UT-L) RID, ORCID
Hykl, Jiří (UT-L) RID, ORCID
Peukert, Pavel (UT-L) RID
Šmíd, Bohuslav (UT-L) RIDNumber of authors 4 Source Title International Conference Experimental Fluid Mechanics 2011, 1. - Liberec : TU Liberec, 2011 / Vít T. ; Dančová P. ; Novotný P. - ISBN 978-80-7372-784-0 Pages s. 680-687 Number of pages 8 s. Publication form CD ROM - CD ROM Action Experimental Fluid Mechanics 2011 Event date 22.11.2011-25.11.2011 VEvent location Jičín Country CZ - Czech Republic Event type EUR Language eng - English Country CZ - Czech Republic Keywords density ; supercooled water ; high pressure Subject RIV BJ - Thermodynamics R&D Projects IAA200760905 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) LA09011 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z20760514 - UT-L (2005-2011) Annotation Thermodynamic behavior of supercooled water (metastable fluid water existing transiently below the equilibrium freezing point) at high pressures was subject to many recent theoretical studies. Some of them assume that a second critical point of water exists, related to two liquid phases of supercooled water: the low-density liquid and the high-density liquid. To test these theories, an original experimental cryogenic apparatus is being developed. The volume changes are measured optically in custom-treated fused-silica capillary tubes. The capillaries are placed in a metal vessel designed for pressures up to 200 MPa. The vessel is connected to a circulation thermostat enabling a rapid change of temperature to prevent freezing. A new high-vacuum device was developed for degassing of the ultrapure water sample and filling it into the measuring capillaries. The experiments will contribute to fundamental understanding of the anomalous behavior of water and to applications in meteorology, aerospace engineering, cryobiology etc. Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2012
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