1974 年 90 巻 1031 号 p. 45-50
In the circulating system the amount of a particular substance increases with the time elapsed. In this paper, the variation is analyzed on the basis of two models for the system, which are Closed Line Type Model (3.1 and 4. 1) and Perfect Mixing Tank Type Model (3.2 and 4.2).
As another basis the actions to reject the substance from the system are divided into “separation” and “division”. And the material balance is shown in Fig 1. Both the accumulated amount “M” in the system and the rejected amount “D” from the system are mainly influenced by the time for one circulation “T” and the rate of. division “β”. Results of calculations by the use of eqs.(3.1-1), (3.2-1) and eqs.(4.1-1 and 2), (4.2-3) are shown in Fig 2. and Fig. 3. One example of analysis of data measured at a plant (Table 1) is shown in Fig 4.