Dynamics heat and mass transfer processes

Paper number

IAC-05-C2.2.11

Author

Prof. Vladimir Prisniakov, Institute of Geotechnical Mechanics, National Academy of Sciences, Ukraine

Year

2005

Abstract

New results on dynamics of heat and mass transfer in heat pipes under impact of vibration at various corners of an inclination are submitted.  Heat pipes have found wide application in various technology units as the devices possessing high effective heat conductivity, i.e. they are capable to transfer heat fluxs of high density at insignificant temperature drops between a source and a drain of heat.  Operating conditions influence strongly work of thermal pipes. The operating regime of the heat pipe which is established on the space ship  which goes with huge acceleration or making necessary maneuver or flies in weightlessness, will be essential to differ from an operating mode on the ground as convection occurs in a field of mass forces.
Presence of vibrations is practically inevitable besides by virtue of body of the factors having a place at work of this or that device. Action of vibration exercise significant influence on processes of evaporation, condensation, and also movement of a liquid phase in it is capillary – porous structure of a heat pipe.  
The given work represents continuation and the certain generalization of the carried out experimental works of complex research of influence of vibrations and a corner of an inclination on characteristics of heat pipes in non-stationary conditions.   The received experimental data are submitted as schedules of relative temperature of a wall for various frequencies and amplitudes of fluctuations with a changeable corner of an inclination for various heat pipes on a regime of start and shut-down of heat pipe or at transition from one regime on another.

Abstract document

IAC-05-C2.2.11.pdf

Manuscript document

IAC-05-C2.2.11.pdf (🔒 authorized access only).

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