Numerical analysis of flows and heat transfer within grooved Flat Mini Heat Pipes

摘要

A Theoretical study is carried out in order to verify the Mini Heat Pipe (MHP) concept for cooling high power dissipation electronic components and determines the potential advantages of constructing mini channels as an integrated part of a Flat Mini Heat Pipe (FMHP). Hence, a detailed mathematical model of a FMHP with axial microchannels is developed in which the fluid flow is considered along with the heat and mass transfer processes during evaporation and condensation. The model is based on the equations for the mass, momentum and energy conservation, which are written for the evaporator, adiabatic, and condenser zones. The model can predict the maximum heat transfer capacity, the optimal fluid mass, and the flow and thermal parameters along the FMHP.