ら旋細線などを挿入した管内における環状液膜流の研究 : 蒸発伝熱の改善を目的とするエントレインメント抑制について

概要

論文の詳細を見る
The entrainment rate of liquid droplets in a two-phase annular mist flow is investigated in the helically ribbed and wired tubes with the aim of suppressing the droplet entrainment to improve evaporative heat transfer in various steam generators of the one-through type. The results show that the entrainment rate in these tubes is lower than that in smooth ones. Large disturbance waves on the surface of the liquid film flow in the tubes are also smoothed, which may be a reason for the entrainment-suppression effect. The effect can be correlated with three nondimensional parameters. The pressure drop of two-phase flow through the tubes is influenced by some factors as well as by the hydraulic diameter of the tubes.
一般社団法人日本機械学会の論文
1990-04-25