総括酸素移動容量係数の算出方法に関する考察

概要

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The "moment method" is one of reliable methods for calculating over-all oxygen transfer coefficients (K_Lα). However, this method requires such the condition that dissolved oxygen concentration should be zero at the start of measurement. From a practical point of view, this condition cannot always be satisfied. A "modified moment method" is then presented in this paper, which utilizes a quadratic moment in order to make it applicable even if initial dissolved oxygen concentration is not zero. The "table C_s method", the "measurment C_s method", the "log-difference method" and the "modified moment method" are compared. It is found that the calculated values according to the "modified moment method" and the "log-difference method" agreed exactly with measured values of dissolved oxygen concentration and that these two methods were more reliable than the other two methods.
山梨大学の論文