グルーブ併用型ロータス銅を用いた沸騰冷却性能に対するグルーブサイズの影響

抄録

This paper describes boiling heat transfer performance of a lotus-type porous copper plate attached onto a grooved heat transfer surface in a saturated pool. The boiling heat transfer experiments are conducted under atmospheric conditions using water as cooling liquid. The lotus copper has uni-directional pore structure in a perpendicular direction to the heated surface, and the average pore diameter and the thickness are 0.49 mm and 2.0 mm, respectively. The boiling curves prove that the utilization of larger size of groove leads to the improvement of the critical heat flux. The critical heat flux in the case of the groove width of 1.0 mm reach is 517 W/cm².