ディンプル型伝熱面を用いた高発熱素子のプール沸騰冷却

抄録

We focus on the enhancement of boiling performance. Effects of heat transfer surface structures on boiling heat transfer performance are investigated experimentally. We have used five types of heat transfer surfaces (smooth surface and four types of dimple surfaces with different arrangement, pitch and diameter). On the projected area basis, dimple φ1mm (inline; pitch 1.0mm) surface is the best among them, and heat flux of the surface increases about 4.2 times compared with that of smooth surface. Whereas, on the actual surface area basis, φ1mm (inline; pitch 1.5mm) surface is the best, and heat flux of the surface increases about 3.5 times compared with that of smooth surface.