Abstract
Heat transfer characteristics and critical heat flux of a micro grooved evaporator were examinated experimentally, and effects of liquid subcooling were mainly investigated. We used 6 kinds of grooved surfaces with different groove width (0.2mm and 0.3mm), depth (0.5mm,0.6mm and 0.7mm) and spacing (0.2mm and 0.3mm). Also, the evaporating front of thin liquid film was observed and the relations between meniscus and the heat transfer characteristics were investigated.
