Mass Transfer and Chemical Reaction in Turbulent Pipe Flow PDF Download
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Author: Sarabjit Singh Randhava
Publisher:
ISBN:
Category : Chemical reactions
Languages : en
Pages : 388
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Book Description
Author: Sarabjit Singh Randhava
Publisher:
ISBN:
Category : Chemical reactions
Languages : en
Pages : 388
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Book Description
Author: W. C. Brennan
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Roger Norris Keeler
Publisher:
ISBN:
Category : Chemical reactions
Languages : en
Pages : 208
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Book Description
Author: Dimitrios V. Papavassiliou
Publisher: MDPI
ISBN: 303897238X
Category : Technology & Engineering
Languages : en
Pages : 215
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Book Description
This book is a printed edition of the Special Issue "Flow and Heat or Mass Transfer in the Chemical Process Industry" that was published in Fluids
Author: Roland Borghi
Publisher: John Wiley & Sons
ISBN: 1848216173
Category : Science
Languages : en
Pages : 462
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Book Description
Numerous industrial systems or natural environments involve multiphase flows with heat and mass transfer. The authors of this book present the physical modeling of these flows, in a unified way, which can include various physical aspects and several levels of complexity. Thermal engineering and nuclear reactors; the extraction and transport of petroleum products; diesel and rocket engines; chemical engineering reactors and fluidized beds; smoke or aerosol dispersion; landslides and avalanches &− the modeling of multiphase flows with heat and mass transfer for all these situations can be developed following a common methodology. This book is devoted to the description of the mathematical bases of how to incorporate adequate physical ingredients in agreement with known experimental facts and how to make the model evolve according to the required complexity. Contents Part 1. Approach and General Equations 1. Towards a Unified Description of Multiphase Flows. 2. Instant Equations for a Piecewise Continuous Medium. 3. Description of a “Mean Multiphase Medium”. 4. Equations for the Mean Continuous Medium. Part 2. Modeling: A Single Approach Adaptable to Multiple Applications 5. The Modeling of Interphase Exchanges. 6. Modeling Turbulent Dispersion Fluxes. 7. Modeling the Mean Gas–Liquid Interface Area per Unit Volume. 8. “Large Eddy Simulation” Style Models. 9. Contribution of Thermodynamics of Irreversible Processes. 10. Experimental Methods. 11. Some Experimental Results Pertaining to Multiphase Flow Properties that Are Still Little Understood. Part 3. From Fluidized Beds to Granular Media 12. Fluidized Beds. 13. Generalizations for Granular Media. 14. Modeling of Cauchy Tensor of Sliding Contacts. 15. Modeling the Kinetic Cauchy Stress Tensor. Part 4. Studying Fluctuations and Probability Densities 16. Fluctuations of the Gas Phase in Reactive Two-Phase Media. 17. Temperature Fluctuations in Condensed Phases. 18. Study of the PDF for Velocity Fluctuations and Sizes of Parcels. About the Authors Roland Borghi is Professor Emeritus at Ecole Centrale Marseille in France and works as a consultant in the space, petrol and automobile sectors. His research activities cover fluid mechanics, combustion and flames, and multi-phase and granular flows. He was a member of the CNRS scientific committee and a laureate of the French Academy of Science. Fabien Anselmet is Professor at Ecole Centrale Marseille in France. His research activities focus on the turbulence of fluids and its varied applications in industry and in fields linked to the environment. With a unified, didactic style, this text presents tangible models of multiphase flows with heat and mass transfer with attention to various levels of complexities. It addresses thermal engineering and nuclear reactors, extraction and transport of petroleum products, diesel engines and rocket engines, chemical engineering reactors and fluidized beds, smoke or aerosol dispersion, and landslides and avalanches. Engineers, researchers, and scientists will appreciate the discussions of modeling principles, flows and granular media, and fluctuations around averages.
Author: Robert Brodkey
Publisher: Elsevier
ISBN: 0323154689
Category : Technology & Engineering
Languages : en
Pages : 352
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Book Description
Turbulence in Mixing Operations: Theory and Application to Mixing and Reaction presents a summary of the current status of research on turbulent motion, mixing, and kinetics. Each chapter of this book discusses turbulence in the context of mixing and reaction in scalar fields. Chapters I and III discuss the classification of turbulent reacting systems and the different possibilities in this context. Chapter II reviews the properties of passive mixing. Chapter IV looks at turbulent mixing in chemically reactive flows. Chapter V uses different techniques to make parallel numerical calculations of both mixing and reaction. Finally, Chapter VI reviews turbulence and actual industrial mixing operations. This book will be of great value for chemical and industrial engineers, especially for those interested in turbulent and industrial mixing.
Author: D. Brian Spalding
Publisher: Elsevier
ISBN: 1483160661
Category : Technology & Engineering
Languages : en
Pages : 445
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Book Description
Numerical Prediction of Flow, Heat Transfer, Turbulence and Combustion: Selected Works of Professor D. Brian Spalding focuses on the many contributions of Professor Spalding on thermodynamics. This compilation of his works is done to honor the professor on the occasion of his 60th birthday. Relatively, the works contained in this book are selected to highlight the genius of Professor Spalding in this field of interest. The book presents various research on combustion, heat transfer, turbulence, and flows. His thinking on separated flows paved the way for the multi-dimensional modeling of turbulence. Arguments on the universality of the models of turbulence and the problems that are associated with combustion engineering are clarified. The text notes the importance of combustion science as well as the problems associated with it. Mathematical computations are also presented in determining turbulent flows in different environments, including on curved pipes, curved ducts, and rotating ducts. These calculations are presented to further strengthen the claims of Professor Spalding in this discipline. The book is a great find for those who are interested in studying thermodynamics.
Author: Robert S. Brodkey
Publisher: Brodkey Publishing
ISBN: 9780972663588
Category : Science
Languages : en
Pages : 522
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Book Description
Part II covers applications in greater detail. The three transport phenomena--heat, mass, and momentum transfer--are treated in depth through simultaneous (or parallel) developments.
Author: Robert Maynard Hamilton
Publisher:
ISBN:
Category : Mass transfer
Languages : en
Pages : 302
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
A predictive model is described to simulate the aqueous CO2 corrosion of iron in turbulent pipe flow. Mass transfer is modelled with a two dimensional low Reynolds number k- 3 turbulence model by simultaneously solving the conservation equations for mass, momentum, kinetic energy of turbulence and its dissipation rate, along with the concentrations of various dissolved species. The effect of the slow homogeneous chemical reaction Of CO2 hydration is incorporated into the model by including an extra source term in the transport equation for carbonic acid. Other homogeneous chemical reactions are assumed to be in equilibrium. The electrochemical reactions considered are iron dissolution and the reduction of H2CO3, H+ and H 2O. An iterative procedure is employed to calculate CO2 corrosion rates by ensuring the mixed potential theory is satisfied and the various surface chemical equilibria are preserved. It is shown that at a bulk PH 4 and very low flow velocities the reduction of H2CO3 is controlled by CO2 hydration. At higher velocities and in the high current density region where Tafel behavior is no longer observed, H2CO3 reduction is controlled by the interaction of chemical reaction (CO2 hydration) and mass transfer. The H+ reduction is more flow sensitive than the H2CO3 reduction. CO2 corrosion is more influenced by flow at PH 4 than at higher PH values. Generation of H 2CO3 by CO2 hydration enhances the H2CO 3 mass transport and reduces the H2CO3 mass transfer entrance length. The relative contributions of H2CO3, H+, find H2O reduction to the corrosion current depend on the solution PH. The CO2 corrosion rate is accelerated by turbulent flow and CO2 partial pressure through an approximate power law. Present model predictions were tested against experimental findings and other models. Good agreement is achieved. A simplified spreadsheet-based electrochemical model of CO2 corrosion is also developed. Overall mass transfer coefficients.
