HEAT PIPE FOR EFFICIENTLY TRANSFERRING HEAT BY HEAT CONVECTION OF NANOFLUID INCLUDING METAL NANOPARTICLES CHARGED IN AN ENCLOSED PIPE

摘要

PURPOSE: A heat pipe using nanofluid is provided to cool electronic appliances such as semiconductors or computers, and to improve heat exchange efficiency by injecting actuating fluid including metal nanoparticles to the enclosed pipe and by transferring heat efficiently. CONSTITUTION: A wick(5) is installed along the inner wall of an enclosed thermal conductive metal pipe(3) to induce capillary tube pressure, and actuating fluid is charged in the enclosed pipe to transfer heat from a heat exchange material by convection of actuating fluid and capillary tube pressure. A heat pipe 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 enclosed pipe, an insulation unit(20) transmitting gas in evaporating to the upper part of the enclosed pipe, and a condensing unit(30) radiating heat from the actuating fluid to the upper part of the enclosed pipe by condensing and liquefying gas and circulating the liquefied actuating fluid to the evaporating unit along the wick with the pressure difference of capillary tube. The actuating fluid is formed of nanofluid(1) including metal nanoparticles to increase the heat capacity of fluid and the heat transfer area.