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Introduction Lecture PE 313 Mass Transfer (I)

Introduction Lecture PE 313 Mass Transfer (I). Dr. Noha Said Yousef. PETROCHEMICAL DEPARTMENT PE313 Mass Transfer (I) 3Cr [3. 2]. Instructor: Dr. Noha Said Yousef Room:E106 e-mail: nohaysf@yahoo.com Assistant: Eng . Aya Soliman Lecture: E 120 Wednesday from 10:30 to 12:30

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Introduction Lecture PE 313 Mass Transfer (I)

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

  2. PETROCHEMICAL DEPARTMENT PE313 Mass Transfer (I) 3Cr [3. 2] Instructor: Dr. Noha Said Yousef Room:E106 e-mail: nohaysf@yahoo.com Assistant: Eng . AyaSoliman 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 Thursday from 12:30 to 2:30 Prerequisites: PE 231 Heat transfer

  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 (9th exam) to assess level of understanding • 5- Final exam to assess the overall understanding of the course.

  12. Assessment: Mid-term 20 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, 5th Ed. F.P. Incropera and D.P. Dewitt,” Fundamentals of heat and mass transfer’, 6th Ed., John Wiley & Sons, New York, 2002. 6.3- Periodicals, Web sites, … etc

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