Evaluation of CO{sub}2 Dissolution Contained in Marine Exhaust Gas Bubbles and Reduction of Ship's Frictional Resistance

摘要

Aiming at reduction of CO{sub}2 contained in the exhaust gas from ships is also considered, for which fuel oil consumption reduction by improvement of ship's propulsive performance and etc. has been earnestly investigated. In this paper dissolution of CO{sub}2 in the exhaust gas bubbles injected into the flow around ship hull is proposed to be one of the powerful candidate for resolution, taking into account the hydrodynamic characteristics of flow around ship hull and chemical property of CO{sub}2 in the large amount of salt water around ships. The system outlined is composed of exhaust gas bubbles injection system, including power needed for injection, hydrodynamics of micro gas bubbles flowing along the ship hull of full scale accompanied with chemical process of CO{sub}2 dissolution, reduction of ship's frictional resistance.