Dynamics of transient processes at liquid boiling-up in the conditions of free convection and forced flow in a channel under nonstationary heat release

Autor:	M. I. Moiseev, E. A. Tairov, Aleksandr N. Pavlenko, A. A. Levin, V. E. Zhukov
Rok vydání:	2014
Předmět:	Environmental Engineering Natural convection Materials science Bubble Evaporation Energy Engineering and Power Technology Thermodynamics Condensed Matter Physics Physics::Fluid Dynamics Subcooling Boiling point Volume (thermodynamics) Modeling and Simulation Boiling Vapor–liquid equilibrium
Zdroj:	Journal of Engineering Thermophysics. 23:173-193
ISSN:	1990-5432 1810-2328
DOI:	10.1134/s1810232814030023
Popis:	Results on experimental investigation of the dynamics of boiling-up at stepwise heat release on a horizontally oriented cylindrical surface in a large volume of freon-21 are presented. Experimental data on the propagation velocity, structure, and other local characteristics of development of self-sustained evaporation fronts at different temperature differences of boiling-up in saturated liquid were obtained. New experimental results on the dynamics of vapor phase incipience and evolution on the surface of a vertical heat releasing tube and on the dynamics of changing the heater temperature and pressure in a flow of liquid (water, ethanol) subcooled to saturation temperature in the channel under nonstationary heat release conditions are represented. It was revealed that the dependence of the expectation time of intense bubble growth on the water motion velocity is nonmonotonic.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9826c1bf990253fd9479a84f87b65478 https://doi.org/10.1134/s1810232814030023 Zobrazit plný text záznamu Full text from SpringerLink