Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : October 20, 2018 - October 21, 2018
This paper describes numerical investigation of effect of pore size disorder on the capillary evaporator performance of loop heat pipes (LHP) by pore network simulation. Porous samples with different pore radius distribution but the same macroscopic porous property are generated and liquid-vapor two-phase heat transfer in the evaporator is simulated. The simulation reveals that moderate disorder enhances the heat-transfer coefficient and three-phase contact line within the case, liquid, and vapor phases and liquid saturation are correlated as phase interfacial characteristics on the performance enhancement. Design method of the wick and evaporator structure are discussed based on the simulation results.
