Measurement of the Evaporation Rate of Liquid in a Shaking Flask : Performance of the Shaking Flask (IV)

概要

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The evaporation rate (N_<H_2O>) of liqid in a shaking flask was measured under various shaking conditions : temperature, humidity, flask shape, liquid volume in the flask (V_L), length of the stopper in the flask neck (L_C), rotational speed of the shaker (N), and wind velocity (V_W). The rate ws significantly affected by these factors, and the existence of a distribution of water vapor pressure was suggested inside and outside the flask. To predict the evaporation rate, the following empirical equation was derived by the least squares method : N_<H_2O>=1.26×10^<-2>S_F^<1.18>L_F^<-1.3>(p_s-p)^<1.24>V_L^<0.11>N^<0.05>V_W^<0.26>L_C^<-0.37>where, S_F is the cross-sectional area of flask neck, L_P is the length of flask neck, p_s is the saturated partial pressure of water vapor at the temperature of the air surrounding the flask, and p is the partial pressure of water vapor in the flask.
公益社団法人日本生物工学会の論文
1987-06-25