The experimental study was primary designed to evaluate the effectiveness of various additive types as drag-reducer agents, both in the single and binary mixed forms. Since a comparison between more than one additives type, especially between water soluble polymers and suspended particles are rare in literature.
For the increasing importance of corrosion in all branches of recent life, a study on behavior of widely industrial metals (zinc, iron and copper) in deaerated hydrochloric acid is presented in this thesis. This work was developed to predict the corrosion rate and corrosion potentials of binary and ternary metal system to investigate and discuss the effect of temperature, concentration and area fraction of metals on the corrosion rate and corrosion potential. Metals used were iron, copper and zinc.
A theoretical study was carried out to analyze the corrosion of iron pipe and iron rotating cylinder in aerated hydrochloric acid using mixed potential theory equations under turbulent flow of Reynolds number of 5000, 10000,20000, 40000, and 60000, temperature of 25 °C, 40 °C, and 60 °C, and pH 1,2, and 4. The theoretical investigation included: the effect of Reynolds number, temperature, pH, relative roughness (e/d), and heat flux on corrosion rate and corrosion potential.
