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Two-Phase Flow Analyses During Throttling Processes
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SYSNO ASEP 0330337 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Two-Phase Flow Analyses During Throttling Processes Překlad názvu Analýza dvoufázového proudění během procesu škrcení Tvůrce(i) Vacek, V. (CZ)
Vinš, Václav (UT-L) RID, ORCIDZdroj.dok. International Journal of Thermophysics - ISSN 0195-928X
Roč. 30, č. 4 (2009), s. 1179-1196Poč.str. 18 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova capillary tube ; dissolved gas ; metastable flow Vědní obor RIV BJ - Termodynamika CEZ AV0Z20760514 - UT-L (2005-2011) UT WOS 000270541700008 DOI 10.1007/s10765-009-0589-z Anotace This study presents an experimental investigation of the throttling process of saturated fluorocarbon refrigerants (such as R116, R218, and R610) inside capillary tubes. For the detailed two-phase flow analyses, refrigerant R218 was selected. A divided capillary tube was prepared with a set of precise pressure and temperature sensors providing detailed information about the refrigerant flow behavior inside the tube. The metastable flow regions of the superheated liquid and of the two-phase vapor-liquid mixture were clearly detected. A correlation for the ‘underpressure’ of vaporization applicable for capillary flow of fluorocarbon refrigerants was determined. New experimental data were compared with a modified numerical model simulating all four capillary flow regions. A negative effect of non-condensing gases present within the cooling circuit on the overall capillary tube performance was experimentally noted. Pracoviště Ústav termomechaniky Kontakt Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Rok sběru 2010
Počet záznamů: 1