Oscillation heat transfer dynamic model for new type oscillation looped heat pipe with double liquid slugs

In order to explain the oscillation heat transfer dynamics of closed loop oscillation heat pipe (CLOHP) with two liquid slugs, analysis on the forces and heat transfer process of the partial gas-liquid phase system involving multiple parameters was carried out, and a new type oscillation heat transfer dynamic model of the CLOHP was set up based on conservation laws of mass, momentum and energy. Application results indicate that its oscillation heat transfer dynamics features depend largely on the filling rate, pipe diameter and difference in temperature. Besides, oscillation intensity and transfer performance can be improved to a large extent by increasing the temperature difference properly and enlarging the pipe diameter within a certain range under a certain filling rate.