The results of an experimental investigation of the effect of vibration loading parameters on the working characteristics of heat pipes

Experimental results are presented on the effects of vibrational loads on the performance characteristics of heat pipes in evaporating and boiling conditions. The heat pipe is T-shaped, with a vertical part (heating zone) 12 x 25 x 125 mm in size filled with sections of copper tubing having rectangular cross-sections, and a horizontal part (condensation and transport zone) 12 x 52 x 125 mm in size. It is found that vibrational loads having frequencies of 5-4000 Hz and vibrational accelerations of 0.2-15 g exert a significant effect on the thermal resistance and the maximal transmitted heat flux of this heat pipe.