Mass Transfer and Separation Processes Lecturer钟理(87113773,87111517)
1 Lecturer 钟理(87113773,87111517)
1.About the Courses and time scheduling Lecturing (theory): About the Experiments(Contents,methods,groups): Course Design: What is the text book?Unit Operations of Chemical Engineering, the sixth edition.It is most popular in Chem. Eng.in USA univ. Authors?Warren L.McCabe,Julian C.Smith and Peter Harriott
2 1. About the Courses and time scheduling Lecturing (theory)： About the Experiments(Contents, methods, groups)： Course Design： What is the text book? Unit Operations of Chemical Engineering, the sixth edition. It is most popular in Chem. Eng. in USA univ. Authors? Warren L. McCabe, Julian C. Smith and Peter Harriott
2.Course Policies Grading Standard Final Exam of Mass Transfer and Separation Processes)for theory course Participation(including attendance,Assignments) and Midterm Exam)
3 2. Course Policies & Grading Standard Final Exam of《 Mass Transfer and Separation Processes》for theory course Participation(including attendance, Assignments) and Midterm Exam)
2.Grading Standard (Continued) 《Experiments of Chem Eng Principles》): Final Exam(Including last semester'):80% Participation(including attendance,Assignments):20% Participation of last semester 20%) Design Experiment?(Encouraged,Cooperation permitted;Short paper may be substituted) 4
4 2. Grading Standard (Continued) 《Experiments of Chem Eng Principles》： Final Exam(Including last semester’)：80% Participation(including attendance, Assignments) ：20% （ Participation of last semester ：20%） Design Experiment？（Encouraged, Cooperation permitted; Short paper may be substituted）
3.Learning Approaches Mainly Learning: 1)process principles; 2)structure of typical equipment; 3)design calculations; 4)selection of typical equipment; 5)operating methods; 6)enhancement of unit operations
5 3. Learning Approaches Mainly Learning: 1)process principles; 2)structure of typical equipment; 3)design calculations; 4)selection of typical equipment; 5)operating methods; 6)enhancement of unit operations
3.Learning Approaches For each of the unit operations,mainly learning the followings: 1)Material balances; 2)Energy/Enthalpy balances; 3)Equilibria; 4)Heat and Mass transfer rates; 5)Operation relationships
6 3. Learning Approaches For each of the unit operations, mainly learning the followings: 1)Material balances; 2)Energy/Enthalpy balances; 3)Equilibria; 4) Heat and Mass transfer rates; 5)Operation relationships
3.Learning Approaches Preparing lessons or preview before class >Review Don't take the course just for the grade. Practice makes a master.If you don't practice,you won't learn it. >
7 3. Learning Approaches Preparing lessons or preview before class →Review Don't take the course just for the grade. Practice makes a master. If you don't practice, you won't learn it
Introduction
8 Introduction
1.An Example of Mass Transfer: 2.Respiration Breathe in:O2;Breathe out:CO2 Lung Capillary bloodvessel Blood Flow(High Blood Flow(low conc.of CO2) conc.of CO2) co Blood Flow Blood Vessel 9
9 1. An Example of Mass Transfer: 2. Respiration vessel blood Capillary O CO 2 2 vessel blood Capillary O CO 2 2 vessel blood Capillary O CO 2 2 vessel blood Capillary O CO 2 2 vessel blood Capillary O CO 2 2 Lung Blood Flow(High conc.of CO2) Blood Flow(low conc.of CO2) 2 2 O CO 2 2 O CO Blood Flow Blood Vessel Breathe in: O2; Breathe out: CO2
Other examples of mass transfer: .A lump of sugar added to a cup of black coffee. .Water evaporates from ponds to increase the humidity of the passing air stream. .Perfume presents a pleasant fragrance which is imparted throughout the surrounding atmosphere. Industrial processes:A group of operations for separating the components of mixtures is based on the transfer of material from one homogeneous phase to another. 10
10 Other examples of mass transfer: •A lump of sugar added to a cup of black coffee. •Water evaporates from ponds to increase the humidity of the passing air stream. •Perfume presents a pleasant fragrance which is imparted throughout the surrounding atmosphere. Industrial processes: A group of operations for separating the components of mixtures is based on the transfer of material from one homogeneous phase to another