Chemical Engineering ebook
MODELLING IN TRANSPORT PHENOMENA
A Conceptual Approach
ISMAIL TOSUN
During their undergraduate education from chemical engineering, students take various courses on fluid flow, heat transfer, mass transfer, chemical reaction engineering and thermodynamics.Most of the students, however, are unable to understand the links between theconcepts covered in these courses and have difficulty in formulating equations,even of the simplest nature.
This is a typical example of not seeing the forest forthe trees.The pathway from the real problem to the mathematical problem has twostages: perception and formulation. The difliculties encountered in both of thesestages can be easily resolved if students recognize the forest first. Examination oftrees one by one comes at a later stage.In science and chemical engineering, the forest is represented by the basic concepts,i.e., conservation of chemical species, conservation of mass, conservation of momen-tum, and conservation of energy.
My main purpose in writing this chemical engineering textbook is to show students how to translatethe inventory rate equation into mathematical terms at both the macroscopic andmicroscopic levels. It is not my intention to exploit various numerical techniquesto solve the governing equations in momentum, energy and mass transport. Theemphasis is on obtaining the equation representing a physical phenomenon and itsinterpretation.I have been using the draft chapters of this text in my third year MathematicalModelling in Chemical Engineering course for the last two years. It is intended as anundergraduate textbook to be used in an (Introduction to) Transport Phenomenacourse in the junior year. This book can also be used in unit operations courses inconjunction with standard textbooks. Although it is written for students majoringin chemical engineering, it can also be used as a reference or supplementary textin environmental, mechanical, petroleum and civil engineering courses.
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