TWO-PHASE FLOW LOOP THERMOSIPHON FOR TRANSFERRING HEAT BY HEAT CONVECTION OF NANOFLUID CHARGED IN A THERMAL CONDUCTIVE METAL PIPE

摘要

PURPOSE: A two-phase flow loop thermosiphon using nanofluid is provided to cool or exchange heat of electronic appliances such as semiconductors or computers by injecting actuating fluid including metal nanoparticles to the loop pipe and by increasing the heat transfer area and the heat capacity of fluid. CONSTITUTION: Actuating fluid is charged in a thermal conductive metal pipe(3) with the sealed loop circulation structure, and heat from a heat exchange material is transferred by convection of the actuating fluid. A two-phase loop thermosiphon is composed of an evaporating unit(10) absorbing heat from the heat exchange material and transferring heat from the heat exchange material to the actuating fluid in the metal pipe, a condensing unit(30) radiating heat from the actuating fluid in the metal pipe, and transport units(20,40) communicating the evaporating unit to the condensing unit and forming the passage for heat convection of the actuating fluid. The actuating fluid is formed of nanofluid(1) including metal nanoparticles to increase the heat capacity of fluid and the heat transfer area.