Control System of Dissolved Oxygen Concentration Employing a Microcomputer

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概要

• 論文の詳細を見る

• An apparatus interfaced with a microcomputer was constructed to maintain dissolved oxygen concentration (DO) at a constant level during cultivation. Agitation speed, and air and oxygen flow rates were automatically varied according to instructions stored in the microcomputer. A program was written to keep the DO level constant during the cultivation in cases of slow and abrupt DO changes. The DO level was maintainable at 2.0±0.4 ppm during the cultivation of Candida brassicae, and high density biomass (53 g/l) was obtained after 9 hr. This DO-stat system was also applicable to the cultivation of microorganisms with various specific oxygen uptake rates without modification of hte program. Another program was written to minimize operating cost by optimum choice of agitation speed and oxygen flow rate while maintaining DO level constant. The operating cost with this program was lower than that with constant agitation speed.

• 社団法人日本生物工学会の論文
• 1981-08-25

著者

• Yano Takuo

  Dept.of Fermentation Technorogly Hiroshima University

• KOBAYASHI TAKESHI

  (Present address) Department of Chemical Engineering, Faculty of Engineering, Nagoya University

• YANO TAKUO

  Department of Fermentation Tachnology, Faculty of Engineering, Hiroshima University

• Shimizu S

  Nagoya Univ.

• Shimizu Shoichi

  Department Of Food Science And Technology Faculty Of Agriculture

• Yano Takuo

  Department Of Fermentation Tachnology Faculty Of Engineering Hiroshima University

• Yamane Tsuneo

  Labaratory Of Bioreaction Engineering Department Of Food Science And Technology

• Shimizu Shoichi

  Dept. of Food Science and Technology, Nagoya University

• Kobayashi Takeshi

  Dept.of Chemical Engineering Nagoya University

• Kobayashi Takeshi

  (present Address) Department Of Chemical Engineering Faculty Of Engineering Nagoya University

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