![Journal of IAR](/images/mag-vest.jpg)
Experimental study of linear heat pipes thermal characteristics under the external vibrations effect
![Journal of IAR](/images/mag-vest.jpg)
Annotation
An experimental study of the longitudinal external vibrations effect on the value of heat transfer characteristics of heat pipes (HP’s) with a confusor-diffusor profile of the vapour channel and a large amount of working fluid in the pores of the capillary-porous inner insert was conducted. At high temperature head on the HP’s capillary-porous evaporator, connected to the insert by contact welding, vapour formation becomes non-stationary. From the measurements results, it follows that when external longitudinal harmonic vibrations with a limited amplitude and a frequency equal to the frequency of internal nonstationarity occur in the HP, the transport characteristics show a resonant character. The increase in the heat transfer coefficient is due to the intensification of the vapour bubbles growth in the capillary-porous evaporator when external vibrations are applied.
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