A Study on Heat Transfer and Flow Characteristics of Bubble Jet Loop Heat Pipe

Bubble jet loop heat pipe is a newly devised variation of heat pipe in which heat is effectively transported by the latent heat of evaporation and condensation as well as the heat capacity of circulating working fluid. The circulatory and oscillating motion of the working fluid becomes possible by the motion of bubble jet which is generated at a narrow circular gap. These bubbles are condensed at the condensing section. Bubble jet loop heat pipe makes it possible to carry heat long distances upward and horizontal directions. Refrigerant charging rate 50% was showed the best performance of BJLHP in this research. And we take a photograph of flow visualization of bubble jet loop heat pipe by high-speed camera.