## Chemical Engineering: A New PerspectiveChemical engineering has often been referred to as a study in methodology. Approaches in chemical engineering are determined by individual phenomena/processes, and each of these are studied individually. The phenomena that are treated in chemical engineering can be classified into two groups: (1) phenomena that are definite and can be expressed by formulas such as differential equations (2) phenomena that can be expressed only by probability terms. The focus of Chemical Engineering - A new Perspective is on "information entropy". The main themes covered are mixing, separation, turbulent structure, particle size distribution and degree of uncertainty. The book recognizes that the information entropy may not be the only viewpoint, and how the degree of information entropy is useful for the other phenomena. * Introduction of information entropy to chemical engineering * Assertion of the significance of a consistent viewpoint * Presenting new information about phenomena that can be treated by probability terms |

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### Contents

1 | |

Chapter 2 Mixing Phenomena | 21 |

Chapter 3 Separation Phenomena | 81 |

Chapter 4 Turbulent Phenomena | 95 |

Chapter 5 Particle Size Distribution | 125 |

Chapter 6 AnxietyExpectation | 143 |

167 | |

Epilogue | 171 |

173 | |

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### Common terms and phrases

45 PBT impeller aerated stirred vessel amount of information amount of uncertainty average axial bubble column chemical engineering circular pipe concentration conditional entropy considered crushed product decision-making defined by Eq degree of anxiety degree of anxiety/expectation density distribution function described discussed dispersion droplet energy equipment experience for quantity expressed FBDT impeller flow rate i-component impeller rotational speed information entropy inner substance j-region Let us deal liquid liquid–liquid mixing logn mass transfer maximum and minimum maximum value mixedness mixing performance mutual entropy newly defined Newton efficiency Newtonian fluid non-Newtonian fluid Noteworthy point obtained operations/equipment particle partitioned perfect mixing flow power law probability density distribution probability of occurrence probability terms PSD defined PSD function realizable probability regarding the component region Reynolds stress risk seeking scale-up rule separation efficiency shear stress tracer is injected turbulent flow uncertainty regarding undesirable event variable velocity fluctuations volume wave number range Y-system

### Popular passages

Page 167 - K. (1984). An expression of quality of mixedness for multi-component batch mixing. Kagaku Kogaku Ronbunshu, 10, 261-264.