The Measurement of Concentration of Carbon Dioxide in a Liquid Film by the Constant-Electric-Current Method
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概要
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We applied the constant-electric-current method to the measurement of concentration of CO<SUB>2</SUB> in a liquid film flow. This method was useful for the instantaneous measurement of void fraction and film thickness in a liquid film flow. The concentration of CO<SUB>2</SUB> in the liquid can be related to the conductivity of the liquid, i. e., the output voltage from the constant-electric-current method by using the dissociation theory. Although the output of the electrodes of this method strictly indicates the conductance-averaged concentration, that value is nearly equal to the cross-section-averaged concentration. Therefore, we can measure the crosssection-averaged concentration using the constant-electric-current method. Besides, this method does not disturb an original flow in a liquid film because we need not to sample the flowing liquid. Furthermore, in the case that the initial conductivity of the liquid can not be neglected, the dissociation theory can be applied provided that the initial conductivity is caused by the dissolution of CO<SUB>2</SUB>.
- 日本混相流学会の論文
日本混相流学会 | 論文
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