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Introduction Lecture PE 313 Mass Transfer (I) Dr. Noha Said Yousef.

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Presentation on theme: "Introduction Lecture PE 313 Mass Transfer (I) Dr. Noha Said Yousef."— Presentation transcript:

1 Introduction Lecture PE 313 Mass Transfer (I) Dr. Noha Said Yousef

2 Instructor: Dr. Noha Said Yousef Room:E106 e-mail: Assistant: Eng. Aya Soliman Lecture: E 120 Wednesday from 10:30 to 12:30 Tutorial: E120 Sunday from 10:30 to 12:30 Office hours: Monday from 12:30 to 2:30 Wednesday from 12:30 to 2:30 Wednesday from 12:30 to 2:30 Thursday from 12:30 to 2:30 Thursday from 12:30 to 2:30 Prerequisites: PE 231 Heat transfer PETROCHEMICAL DEPARTMENT PE313 Mass Transfer (I) 3Cr [3. 2]

3 Overall aims of course: The main objective of the course is to teach the students the following: - Molecular mass transfer. Estimation and measurement of diffusion coefficient, analogies among mass, heat and momentum transfer in turbulent flow. Interphase mass transfer, continuous two-phase transport, absorption drying.

4 Intended learning outcomes of course (ILOs( a- Knowledge and understanding: a7-i Identify the Principles of transport phenomena. a7-ii Estimate Diffusion in gases, liquids and solids. a7-iii Identify different methods for evaluating diffusivities. a7-iv Define convective mass transfer a7-v Define Free and forced convection mass transfer. a7-vi Explain Simultaneous heat and mass transfer a7-vii List significant parameters in convective mass transfer a7-viii Summarize convective mass transfer correlations in different geometry systems a7-ix Identify gas absorption and its mechanism. a7-x Define the rate of gas absorption a8-I Explain the evaluation of absorber height based on both gas and liquid films a8-ii Explain the evaluation of number of transfer units in the absorber based on both gas and liquid films a8-ii Name equipments of gas absorption a8-iii Explain principles of drying and its practical application a8-vi Define the rate of drying a8-v List different drying equipments

5 b- Intellectual skills: b1-I Calculate mass concentrations and total mass concentrations of different substances. b1-ii Determine molar concentrations and total molar concentration of different substances. b1-iii Determine both the mass fraction and the mole fraction of different substances. b1-iv Determine the average molecular weight of different substances b1-v Calculate the mass and mole average velocity. b1-vi Determine the diffusion velocity relative to the mass or mole average velocity. b1-vii Calculate the mass and molar flux(j and J). b1-viii Determine the Gas Mass Diffusivity using Herlisch-Felder equation. b1-ix Calculate the mass transfer coefficient.

6 b6-I Determine the significant parameters in convective mass transfer ( Sc, and Le). b6-ii Determine the rate of absorption. b6-iii Determine of Overall coefficients in absorption process. b6-iv Calculate the number of transfer units in the absorption process. b6-v Determine of the height of an absorber. b6-vi Determine the number of plates by the use of absorption factor. b6-vii Determine the rate and time of drying. b6-viii Calculate the mass flow rate of dry air supplied to the dryer and the humidity of the exit air b6-ix Determine the diameter and length that should be specified for any proposed type of dryer.

7 c- Professional and practical skills: c13-I Detect the parameters of molecular and convective mass transfer. c13-ii Design appropriate physical models and corresponding mathematical models for engineering systems involving transfer of mass. c13-iii Design any type of an absorber. c13-iv Design any type of a dryer.

8 d- General and transferable skills: d1Communicate effectively, both orally and in writing. d5-I Follow computer skills d5-ii Extract information from published sources d5-iii practice presentations skills

9 Course Outlines: Introduction to the course (1) Diffusion coefficient (1) Diffusion in gas mixtures (1) Solid mass diffusivity (1) significant parameters in convective mass transfer (1)

10 Correlations for mass transfer from single spheres (1) Gas absorption (1) Conditions of equilibrium between liquid and gas (1) Drying (3-4)

11 4– Teaching and learning methods 1-Lectures 2- Assignments 3- Quizzes 4- Reports 5-Tutorial Sessions 7- 5- Student assessment methods 1- Assignments to assess the student’s performance. 2- Quizzes to assess the follow-up 3- Reports to assess the report writing skills and research skills 4- Mid-term exam (9 th exam) to assess level of understanding 5- Final exam to assess the overall understanding of the course.

12 Assessment : Mid-term20 marks quizzes 20 marks reports and assignments 10 marks Final Exam. 50 marks --------- 100

13 6- List of references 6.1- Course notes Based on selected chapters collected from text books. 6.2- Textbook: COULSON AND RICHARDSONS;"CHEMICAL ENGINEERING", VOL 2, 5 th Ed. F.P. Incropera and D.P. Dewitt,” Fundamentals of heat and mass transfer’, 6 th Ed., John Wiley & Sons, New York, 2002. 6.3- Periodicals, Web sites, … etc

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