Effect of Gas-liquid Ratio on Erosion-corrosion in Two Phase Flow of Steam and Hot Water

Abstract

Erosion-corrosion behavior was studied under various gas-liquid ratios in two phase flow of steam and hot water at the maximum flow velocity of 246m/s. Obtained results were compared with the results in Onikobe geothermal brine. Corrosion rates of mild steels increased gradually with gas-liquid ratio in soft waters of pH=2, 9.6 and in Onikobe geothermal brine. Corrosion rates of stainless steels were constant in the laboratory test and the field test, even if the ratio changed.