Optimizing L-shaped heat pipes with partially-hybrid mesh-groove wicking structures

• A novel type of partially-hybrid mesh-groove wicking structure has been proposed. The thermal resistance reduced up to 57.4% by the wick. optimal mesh-layer numbers are found be 1-2 layers. charging ratio is actually a region, which highly depends on heat loads. In this study, structures have proposed enhance L-shaped copper-ethanol pipes. Enhancements come from two aspects: (a) enhanced evaporation via hybrid and (b) promoted condensation managing unwanted flooding in section. Experimental studies conducted optimize structures. Three types including grooves, mesh-grooves, fully-hybrid mesh-grooves studied compared. results show that pipe with substantially outperforms pipes other compared axially grooves. Moreover, order structures, effect mesh-layers number wicked (LPHHP) investigated. LPHHP More importantly, instead specific value for given existing studies, study shows However, it extremely challenging such complicated theoretically or numerically due involved complex two-phase transfer. Thus, regression analysis method machine learning LPHHP.