Loop Heat-Pipe Evaporator With Bidisperse Wick Structures

Improved evaporators for loop heat pipes have been developed by incorporating bidisperse structures (in place of older monodisperse structures) into evaporator wicks. As explained in more detail below, the bidisperse structures feature two distinct pore sizes (see Figure 1), which helps to prevent vapor blanketing that can limit heat-flux capacities to unacceptably low values.