Learning Outcomes
1) to understand the common mechanisms of molecular diffusion in the transport of mass and energy from the microscopic and kinetic theory viewpoint
2) to understand the conservation laws of mass and energy
3) to mathematically describe and solve problems of mass and energy transport without/with convection
4) to understand the influence of turbulence on transport phenomena
5) to be able to construct the numerical solution of mass and energy transport problems with/without chemical reactions.
Course Content (Syllabus)
The course will present the theoretical and applied background for the understanding of mass, energy and momentum transport phenomena but will focus on mass transport for energy applications. Both microscopic as well as macroscopic structures will be presented so that the students can understand the common principles underlying all transport phenomena and their properties, with emphasis on diffusion processes.
Introduction: Basic principles and definitions. Differential forms of the equations of mass and energy transport. Commonly used boundary conditions. Phenomenological theory of molecular diffusion and Fick's first law. Concentration distributions for fluids at rest. Diffusion with homogeneous and heterogeneous reactions. Relative influence of rates of mass transport and reaction. Gas diffusion in porous media: molecular diffusion, Knudsen diffusion and viscous flow. Convective mass transport: Non-dimensionalization and non-dimensional numbers in mass and energy transport. Various examples and simplifying assumptions. Reynolds and Peclet numbers, turbulent diffusion.
Analysis of the differential and integral forms of the conservation equations in closed and open systems. Use of numerical techniques for the computational solution of mass transport phenomena. Numerical techniques for the solution of unsteady, combined mass and energy transport phenomena using finite differences in the possible presence of chemical reactions.
Keywords
Mass and energy transport phenomena, molecular diffusion, turbulent diffusion, convection, numerical solution
Course Bibliography (Eudoxus)
1) Brodkey & Hershey «Φαινόμενα Μεταφοράς», (18548900) Επιμ. Ν. Ανδρίτσος, 2016 Εκδ. Τζιόλας
2) Ασημακόπουλος Δ., Λυγερού Β., Αραμπατζής Γ., (22769373) 2012 «Μεταφορά Μάζας και Θερμότητας». Εκδ. Παπασωτηρίου, Αθήνα.
3) Μεταφορά Μάζας και Θερμότητας, 5η Έκδοση (50655951) 2016, Cengel Yunus., Ghajar A., ΕΚΔ. ΤΖΙΟΛΑ & ΥΙΟΙ Α.Ε.
4) ΜΕΤΑΦΟΡΑ ΘΕΡΜΟΤΗΤΑΣ ΚΑΙ ΜΑΖΑΣ (32997961) 2013, Bergman, Lavine, Incropera, Dewitt, Εκδ. ΦΟΥΝΤΑΣ
Additional bibliography for study
1) E.L. Cussler, Diffusion-Mass Transfer in Fluid Systems, 2nd Ed., Cambridge University Press, NY (1997). [Κεντρική Βιβλιοθήκη, Ταξ. αρ.: 660.284 23 CUS]
2) R.B. Bird, W.E. Stewart, and E.N. Lightfoot, Transport Phenomena, John Wiley & Sons, New York (2001). [Κεντρική Βιβλιοθήκη, Ταξ. αρ.: 660.284 2 BIR]
3) ΦΑΙΝΟΜΕΝΑ ΜΕΤΑΦΟΡΑΣ ΣΤΗΝ ΑΤΜΟΣΦΑΙΡΑ (12867190), 2011 ΜΟΥΣΙΟΠΟΥΛΟΣ ΝΙΚΟΛΑΟΣ, Εκδ. Σ. Γιαχούδης & ΣIA O.E.