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Visualization of Mechanical Processes: An International Online Journal


ISSN Online: 2152-209X

Visualization of Mechanical Processes: An International Online Journal

DOI: 10.1615/VisMechProc.2016013833

EFFECT OF A DISSOLVED GAS ON THE CRITICAL HEAT FLUX DURING THE BOILING OF SUBCOOLED WATER

Nikolay Viktorovich Vasil'ev
Joint Institute for High Temperatures (JIHT) of the Russian Academy of Sciences, Izhorskaya Street, 13, Building 2, 125412, Moscow, Russia
Konstantin Alekseevich Hodakov
Joint Institute for High Temperatures (JIHT) of the Russian Academy of Sciences, Izhorskaya Street, 13, Building 2, 125412, Moscow, Russia
Aleksey Yur'evich Varaksin
Joint Institute for High Temperatures (JIHT) of the Russian Academy of Sciences, Izhorskaya Street, 13, Building 2, 125412, Moscow, Russia

ABSTRACT

An experimental investigation of highly subcooled and degassed water saturated with carbon dioxide (up to ~0.3% in mass) was performed in a large volume. Fast video shooting of the pro-cesses was done (2 kHz). The dependencies of the critical heat flux density on the gas concentration during boiling of the subcooled water on the surface of an electrically heated capillary with a diameter of 1 mm in a large volume were obtained. Conclusions are drawn regarding the burnout mechanism during the boiling of subcooled water saturated with gas.