Experimental Study on Heat Dissipation Performance of Enclosed Space with Envelope Embedded Flat Heat Pipe

Abstract

A lot of heat source equipment must work in enclosed space for noise controlling, electromagnetic shielding or three proofings requirement, the heat dissipation is an important problem for being restricted by the enclosed space. In order to solve the heat dissipation problem, the technology scheme was proposed that quantity of heat in enclosed space is conducted out by the flat heat pipe embedding in envelope. Furthermore, the flat heat pipe was designed and fabricated, and the heat dissipation performance of enclosed space with envelope embedded flat heat pipe was studied experimentally. It was found that the convective heat transfer on evaporation fins of heat pipe is the most important section influencing the heat dissipation performance of enclosed space. The temperature in enclosed space decreases greatly with increasing the disturbance air quantity in enclosed space. The temperature difference between inside and outside increases linearly with increasing heat source intensity. It is a novel method to solve effectively the heat dissipation problem of heat source equipment in enclosed space by embedding the flat heat pipe in the envelope.