1. Transport phenomena in chemical processes Michał Araszkiewicz PhD

2. Some technical issues 1 Michał Araszkiewicz PhD Room 14, building C- 6 Time for you: – Monday 10 - 12 – Wednesday 11 - 13 Phone: 713202401 Mail: michal.araszkiewicz@pwr.edu.pl

3. Each Power Point presentation for each lecture will be available 1 or 2 days before the actual lecture at: http://www.prochembio.pwr.wroc.pl/studenci.html Some technical issues 2

4. Happy ending To pass this course it is necessary to: 1.Be present here at least 80% of all lectures (80% of 15 lectures = 12) 3 days of absence 2. Passing the final test at the end of semester

5. Plan of lectures Definition of transport processes Single and multi component systems Partial differential equation – definitions and numerical solving methods Specific transport phenomena cases: – Momentum transfer – Heat transfer – Mass transfer Combining the above processes and run them together at the same time

6. Introduction to the transport phenomena Chemical engineering is kind of science about physical and chemical phenomena that take place in chemical apparatuses. These phenomena (which sometimes run simultaneously) are producing processes. Finalle all is about of conversion of substrats into products.

7. Substrate 1 Substrate 2 Chemical reaction Preparing /division of products Main product By - products preparation Production scheme

8. Processes in chemical engineering Basic processes Unit operations Processes with chemical reaction

9. Basic processes Momentum transfer SteadyUnsteady Heat transfer SteadyUnsteady Mass transfer SteadyUnsteady

10. Momentum transfer movement of fluids in: one phase system multi phase system movement of the particles in force field

11. Heat transferConductionConvectionRadiationTransmissionPenetration

12. Mass transfer Diffusion Particle diffusion Turbulent diffusion

13. Unit operations Transfer of materials Temperature and phase changes of materials Shape changes of solid Separation SolidsLiquidsGases Mixing SolidsLiquidsGases

14. The all three basic processes (momentum, heat and mass tranfer) can be present in the unit operations. Acording to the dominant basic process the unit operations can be divided into various types.

20. To be continued… Thank you for today.