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Stochastic Modelling in Process Technology, Volume 211 [Kõva köide]

(University of Bergen, Department of Physics and Technology, Bergen, Norway), , (Ruhr-Universität Bochum, Department of Mathematics, Bochum, Germany)
  • Formaat: Hardback, 290 pages, kõrgus x laius: 229x152 mm, kaal: 600 g
  • Sari: Mathematics in Science & Engineering
  • Ilmumisaeg: 03-Jul-2007
  • Kirjastus: Elsevier Science Ltd
  • ISBN-10: 0444520260
  • ISBN-13: 9780444520265
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  • Formaat: Hardback, 290 pages, kõrgus x laius: 229x152 mm, kaal: 600 g
  • Sari: Mathematics in Science & Engineering
  • Ilmumisaeg: 03-Jul-2007
  • Kirjastus: Elsevier Science Ltd
  • ISBN-10: 0444520260
  • ISBN-13: 9780444520265
Teised raamatud teemal:
There is an ever increasing need for modelling complex processes reliably. Computational modelling techniques, such as CFD and MD may be used as tools to study specific systems, but their emergence has not decreased the need for generic, analytical process models. Multiphase and multicomponent systems, and high-intensity processes displaying a highly complex behaviour are becoming omnipresent in the processing industry.
This book discusses an elegant, but little-known technique for formulating process models in process technology: stochastic process modelling.
The technique is based on computing the probability distribution for a single particle's position in the process vessel, and/or the particle's properties, as a function of time, rather than - as is traditionally done - basing the model on the formulation and solution of differential conservation equations.
Using this technique can greatly simplify the formulation of a model, and even make modelling possible for processes so complex that the traditional method is impracticable.
Stochastic modelling has sporadically been used in various branches of process technology under various names and guises. This book gives, as the first, an overview of this work, and shows how these techniques are similar in nature, and make use of the same basic mathematical tools and techniques.
The book also demonstrates how stochastic modelling may be implemented by describing example cases, and shows how a stochastic model may be formulated for a case, which cannot be described by formulating and solving differential balance equations.


Key Features:
- Introduction to stochastic process modelling as an alternative modelling technique
- Shows how stochastic modelling may be succesful where the traditional technique fails
- Overview of stochastic modelling in process technology in the research literature
- Illustration of the principle by a wide range of practical examples
- In-depth and self-contained discussions
- Points the way to both mathematical and technological research in a new, rewarding field



- Introduction to stochastic process modelling as an alternative modelling technique
- Shows how stochastic modelling may be succesful where the traditional technique fails
- Overview of stochastic modelling in process technology in the research literature
- Illustration of the principle by a wide range of practical examples
- In-depth and self-contained discussions
- Points the way to both mathematical and technological research in a new, rewarding field

Preface v
1 Modeling in Process Technology 1
1.1 Deterministic Modeling
3
1.2 Stochastic modeling an Example
20
2 Principles of Stochastic Process modeling 29
2.1 Stochastic Process Generalities
29
2.2 Markov Processes
32
2.3 Markov Chains
35
2.4 Long-Term Behavior of Markov Chains
41
2.5 Diffusion processes
47
2.6 First Exit Times and RTD Curves
57
3 Batch Fluidized Beds 65
3.1 Flow Regimes
65
3.2 Bubbling Beds
66
3.3 Slugging Fluidized Beds
81
3.4 Stochastic Model Incorporating Interfering Particles
94
4 Continuous Systems and RTD 103
4.1 Theory of Danckwerts
103
4.2 Subsequent Work
108
4.3 Danckwerts' Law Revisited
116
4.4 RTD for Complex Systems
119
5 RTD in Continuous Fluidized Beds 133
5.1 Types of beds considered here
133
5.2 Bubbling bed
134
5.3 Fluidized Bed Riser
151
6 Mixing and Reactions 161
6.1 Network-of-Zones Modeling
161
6.2 Modeling of Chemical Reactions
178
7 Particle Size Manipulation 187
7.1 Physical Phenomena
188
7.2 Principles of PBM
191
7.3 PBM for High-Shear Granulation
198
7.4 Analysis of a Grinding Process
207
8 Multiphase Systems 213
8.1 Multiphase System for Bubbling Bed
214
8.2 Gulf Streaming in Fluidized beds
218
8.3 Extension of the Model to include Gulf Streaming
230
8.4 Quantification of the Model Parameters
234
8.5 Model Validation with Data
238
8.6 Review of Too et al.
242
8.7 Danckwerts' law for a Multiphase Systems
244
8.8 The abstract Multiphase System
246
9 Diffusion Limits 249
9.1 Fokker-Planck equation
249
9.2 Limit Process
255
A Equations for RTD in CSTR and DPF 259
A.1 Ideally Mixed Vessels (CSTRs) in Series
259
A.2 Plug Flow with Axial Dispersion
261
Bibliography 263
Index 275