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Title: Critical heat flux density in diphasic thermosyphons
Authors: Ponomarev, Konstantin Olegovich
Orlova, Evgeniya Georgievna
Nurpeiis, Atlant Ediluly
Keywords: плотность; тепловые потоки; двухфазные термосифоны; термосифоны; теплопроводность; газовые потоки; кипение
Issue Date: 2017
Publisher: EDP Sciences
Citation: Ponomarev K. O. Critical heat flux density in diphasic thermosyphons / K. O. Ponomarev, E. G. Orlova, А. Е. Nurpeiis // MATEC Web of Conferences. — 2017. — Vol. 110 : Heat and Mass Transfer in the Thermal Control System of Technical and Technological Energy Equipment (HMTTSC 2017) : International Youth Scientific Conference, April 26-28, 2017, Tomsk, Russia : [proceedings]. — [01064, 6 p.].
Abstract: The paper presents an analysis of known dependencies for determining the critical heat flux density in diphasic thermosyphons. The critical heat flux density for the created experimental model of thermosyphon were calculated on the basis of the theoretical contributions of 1) the occurrence of a “flooding” regime in a thermosyphon characterized by a disturbance of the hydrodynamic stability of the phase interface and the entrainment of the liquid phase by the gas flow; 2) the mutual influence of gravitational forces and surface tension; 3) S.S. Kutateladze hydrodynamic theory of the heat transfer crisis during boiling. It is found that the existing theoretical contributions which can be used to calculate the critical heat flux density and subsequently determine the minimum filling ratio of a thermosyphon are conditionally applicable.
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