Download Computational Flow Modeling for Chemical Reactor Engineering by Vivek V. Ranade PDF
By Vivek V. Ranade
This ebook describes how modeling fluid stream in chemical reactors could provide ideas that increase layout, operation, and function of reactors. Chemical reactors are any vessels, tubes, pipes, or tanks within which chemical reactions happen. Computational circulation Modeling for Chemical Reactor Engineering will express the reactor engineer how to find the explicit roles of computational circulation modeling, opt for applicable instruments, and observe those instruments to hyperlink reactor to reactor functionality. total method is illustrated with a number of case studies.Industry has invested sizeable money in computational stream modeling to be able to repay provided that it may be used to achieve major functionality enhancement in chemical reactors. No different unmarried resource exists which gives the knowledge contained during this publication.
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Additional info for Computational Flow Modeling for Chemical Reactor Engineering (Process Systems Engineering)
K. M. (1984), "Heterogeneous Reactions - Analysis Examples and Reactor Design", Vol. 2, John Wiley & Sons, New York. , Larachi, F. and Mills, PL. (1999), Multiphase reactors - revisited, Chem. Eng. , 54, 1975-1996. H. and Peric, M. (1995), "Computational Methods for Fluid Dynamics", Springer Verlag, Berlin. F. B (1984), "Chemical Reactor Analysis and Design", John Wiley & Sons, New York. Krishna, R. (1994), A systems approach to multiphase reactor selection, Adv. Chem. , 19, 201-250. Kunii, D. and Levenspiel, O.
G. (1962), A new model for the stirred tank reactors, Chem. Eng. , 17, 507. -D. and Mann, R. (1992), Partial segregation in stirred batch reactors, Chem. Eng. Res. , 70A, 282-290. Y. T. (1975), "Models for flow systems and chemical reactors", Marcel Dekker, New York. M. M. (1984), "Chemical Reactor Design & Operation", 2nd edition, John Wiley & Sons, New York. This page intentionally left blank PART II COMPUTATIONAL FLOW MODELING This page intentionally left blank MATHEMATICAL MODELING OF FLOW PROCESSES A clear understanding and analysis of the role of flow processes in determining reactor performance leads to specific definitions of the objectives of the flow model.
1 . 1 . Conservation of Mass It is often suitable to write the mass conservation equations in terms of mass fractions of species rather than molar concentrations, especially for flow processes, where properties of the fluid may vary with composition and temperatures. 1 Flowing fluid Two approaches to deriving governing equations, (a) Eulerian; (b) Lagrangian. where t is time, p is fluid density, m^ is the mass fraction of species k and U is fluid velocity. The first term of the left-hand side of this equation represents accumulation of species k in a volume element and the second term represents change in species mass fraction due to convection.