Crisis of heat transfer on a micro-finned heater with gas-driven FC-72 film flow in a mini-channel
V.V. Cheverda1,2, O.A. Kabov1,3
1Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia
2ovosibirsk State University, Novosibirsk, Russia
3Tomsk Polytechnic University, Tomsk, Russia
Keywords: двухфазные потоки, пленочные течения, локальный нагрев, кризис теплообмена, микрооребрение, two-phase flows, film flows, local heating, heat transfer crisis, micro-finning
Abstract
The crisis of heat transfer in a FC-72 liquid film moving under the action of a gas flow along a smooth or micro-finned heater was experimentally investigated. It is shown that the use of micro-finning leads to an increase in the critical heat flux, since additional washing of the heated surface occurs due to the capillary effect.
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