Theoretical study of relief venting of dust explosion.
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概要
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Relief venting is one of the protective methods most commonly provided against dust explosion hazards. Safety design has so far been based upon the empirical vent ratio, S/V, the area of vent per unit volume of vessel. However, direct use of this term as a scale-up factor is not theoretically sound. A revised form of scale-up factor as to relief venting is proposed on the basis of the unsteady-state macroscopic energy balance and several assumptions. The derived results show that the relationship between vent area and vessel volume can be characterized by a dimensionless term which must be used instead of the conventional vent ratio. Calculated results based upon the theory agree fairly well with past experimental data.
- 公益社団法人 化学工学会の論文
著者
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Tanaka Tatsuo
Department Of Analytical Chemistry Showa Pharmaceutical University
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Nomura Shin-ichiro
Department of Bioengineering and Robotics, Graduate School of Engineering, Tohoku University
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