Abstract

水平流路上で比重の大きい冷媒蒸気が凝縮する場合の直接接触伝熱に関して実験的並びに理論的検討を行った.実験では静止冷水面上にR-11蒸気を凝縮させ,その凝縮過程を観測した.理論的には凝縮液の滴状落下除去モデルを考え,その計算値を測定値と比較した.その結果,水面上の凝縮液膜が非常に薄い場合には良く一致することが認められた.またこの場合の伝熱促進効果を接触時間および温度差の観点から検討した.

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