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Shun-ichi Uchida
1970 Volume 34 Issue 1 Pages
2-5
Published: January 05, 1970
Released on J-STAGE: October 07, 2010
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[in Japanese]
1970 Volume 34 Issue 1 Pages
6-8
Published: January 05, 1970
Released on J-STAGE: October 07, 2010
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Shigetomo Ueda
1970 Volume 34 Issue 1 Pages
9-12
Published: January 05, 1970
Released on J-STAGE: October 07, 2010
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Hideo Nagasaka
1970 Volume 34 Issue 1 Pages
13-16
Published: January 05, 1970
Released on J-STAGE: October 07, 2010
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[in Japanese]
1970 Volume 34 Issue 1 Pages
17-23
Published: January 05, 1970
Released on J-STAGE: October 07, 2010
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Mompei Shirato, Taiji Sugimoto
1970 Volume 34 Issue 1 Pages
24-28
Published: January 05, 1970
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Seiichi Ishizaka
1970 Volume 34 Issue 1 Pages
28-32
Published: January 05, 1970
Released on J-STAGE: October 07, 2010
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Koichi Hashimoto
1970 Volume 34 Issue 1 Pages
33-36
Published: January 05, 1970
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Goichi Yoshida
1970 Volume 34 Issue 1 Pages
37-40
Published: January 05, 1970
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Akihiro Iguchi
1970 Volume 34 Issue 1 Pages
41-44,a1
Published: January 05, 1970
Released on J-STAGE: October 07, 2010
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A new method of tie line correlation was proposed and examined for ternary liquid systems in the literature.
The figures which plotted as
log
xw vs.(
yw-xw)/
xwshowsnearly straight line for the region of high solute concentrations of many systems.
By using this linear correlation, it is possible to Interpolate the data and to preestimate the solute concentration at plait point.
The errors of estimation were ±2.8% against the literatere values for about 20 systems.
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Hiromasa Komatsu, Isao Suzuki, Takashi Ishikawa, Mitsuho Hirata
1970 Volume 34 Issue 1 Pages
45-52,a1
Published: January 05, 1970
Released on J-STAGE: October 07, 2010
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Experiments on distillation accompanied by the estenfication of Acetic and-Ethylalcohol, using Oldershaw column, packed column, perforated column, were carried out.
A new graphical method to test mass balances of corium, ous distillation and a matching method between the liquid composition on the feed plate and that on the plate above the feed plate are recommended.
It was found that conversion increased as reflux ratio increased and that reflux ratio was an important factor which had an effect not only on separation but also on conversion.
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Koretsune Ueyama, Takeshi Kataoka, Tadaaki Nishiki, Daisaburo Kato
1970 Volume 34 Issue 1 Pages
53-58,a1
Published: January 05, 1970
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The liquid film thicknesses of liquid-liquid wetted-wall towers were measured for cases in which core liquids are stationary or are contacting with falling liquids in counter or cocurrent fashions The effects of the physical properties of the core liquids, the distance of downflow direction and the flow rate of the core liquids, etc., on the film thicknes ses were investigated. As a result, in the region of low Reynolds number, the film thicknesses didn't vary in the downflow direction, and nearly coincided with the theoretal equation the authors developed. But, beyond
Re1, at which waves originate, film thicknesses varied with distance of downflow direction Further, within the range of flow rates of the core liquids used in this experiment, the film thicknesses were not affected by the flow rates.
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Tokuro Mizushina, Shunji Takeshita, Yushi Hirata, Hideki Kojima, Masao ...
1970 Volume 34 Issue 1 Pages
59-63,a1
Published: January 05, 1970
Released on J-STAGE: October 07, 2010
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A fully developed turbulent flow in a porous-wall pipe with injection and suction flow through the wall was experimentally investigated It was recognized that the mixing length of turbulent eddy increased with increase of injection rate and decreased with increase of suction rate.
An equation of velocity profile was derived by using at approximation of Richardt's expression for the mixing length of a turbulent eddy. A comparison between calculated and observed results showed that they were in good agreement except near the wall.
Next, an equation was derived from the momentum balance to calculate the friction factor from experimental data-The results were in fairly good agreement with theoreticalvalues by film theory.
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On the Relation between the Flow Chart and Process Equation
Isami Yoshifuku
1970 Volume 34 Issue 1 Pages
63-69,a1
Published: January 05, 1970
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As an example of chemical apparatus whose process equation is represented by non- linear simultaneous difference equations, the problem of design of mutiple-effect evaoorators was chosen.
Especially where boiling point rise can be neglected, it was attempted to represent a method to solve the problem by using a flow chart and to propose a better flow chart. Moreover the structure of the flow chart was reveal, by considering the relation between flow chart and process equation.
In addition, a flow chart for various conditions in multnileeffect evaporators was prepared.
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Koichi Iinoya, Akihiro Yamanaka
1970 Volume 34 Issue 1 Pages
69-74,a1
Published: January 05, 1970
Released on J-STAGE: October 07, 2010
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The measuring deviation of particle concentration due to anisokinetic sampling is experimentally evaluated for solid liquid flow (water glass beads two phases), in which case the necessary uniform size particles are easily available. The experimental results are shown in the figures and an empiri cal equation is proposed. These experimental results are also compared with previous experimental results and several other semi-theoretical formulae for solid gas two-phase flow.
Consequently, it is evident that the anisokinetic sampling errors for solid-liquid flow are nearly half those for solidgas flow, and that Watson's equation agrees fairly well with our experimental results. On the other hand, the anisokinetic sampling errors depend on which definition of mean particle diameter is used for the inertia parameter.
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Setsuo Mimashi, Takao Ayabe, Hajime Nakamoto
1970 Volume 34 Issue 1 Pages
74-81,a1
Published: January 05, 1970
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A calculation procedure for azeotropic distillation column is proposed It consists of the following steps;(1) specify a set of variables according to the purpose of calculation.(2) assume the composition of overhead vapor (3) solve overall mass and heat balance (4) plate-to-plate calculation from the bottom using the result of (3).(5) repeat these procedures until good agreement is obtained Further, an i mproved method to obtain converged soultion is presented. IPA-IPE-Water azeotropic distillation system is selected as the example.
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Takeichiro Takamatsu, Tatsuro Sawada, Taketora Hasegawa, Noboru Izumoz ...
1970 Volume 34 Issue 1 Pages
81-86,a1
Published: January 05, 1970
Released on J-STAGE: October 07, 2010
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It is confirmed by the moment method that the mathematical model of continuous stirred tank proposed in a previous paper can represent complex mixing condition The step response of 1st-order reaction for linear process is measured and compared with that computed from the model.
To consider the micromixing effects of non linear process, the step response of 2nd-order reaction is measured and compared with the calculation based on the proposed model for maximum mixing and complete segregation.
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Masahide Ogawa, Yujiro Sugawara, Daizo Kunii
1970 Volume 34 Issue 1 Pages
87-93,a1
Published: January 05, 1970
Released on J-STAGE: October 07, 2010
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Applying the moving-fluidizing bed system, namely a combination of the moving bed of coarse solids with the fluidizing fine particles, it was found that three kinds of hydrogel, i. e. silica, silica alumina and alumina gel could be dried up effectively without serious cracking or breakage. In this paper, outline of development procedure of the above new drying process was reported, starting from the basic investigation of drying characteristics, and through a bench-scale unit and a pilot plant which resulted in a commercial plant being operated successfully.
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1970 Volume 34 Issue 1 Pages
93-106,a1
Published: January 05, 1970
Released on J-STAGE: October 07, 2010
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