伝熱面温度分布付与による狭隘間隙における沸騰限界熱流束の促進

抄録

This paper proposed a promising method to increase the critical heat flux during the boiling of water in narrow gap. Materials with different thermal properties were alternately arranged near the heat transfer surface in heat transfer block and a temperature distribution is given to heat transfer surface in saturated pool boiling in narrow gaps for water. It was expected that critical heat flux was enhanced by mutual interference of different boiling modes. Such an enhanced method of CHF was proposed. Measurement was carried out for 20 mm rectangular heat transfer surface, gap size of 0.5 - 2.0 mm.

CHF was enhanced approximately up to 70% was obtained, showing its effectiveness.