ABE 3612C HEAT AND MASS TRANSFER IN BIOLOGICAL SYSTEMS

Transcription

1 ABE 3612C HEAT AND MASS TRANSFER IN BIOLOGICAL SYSTEMS 1. Catalog Description: 4 credits. Transport phenomena, steady and unsteady state heat conduction, radiation, free and forced convection, mass transfer, psychometrics, thermodynamics of biological processes. 2. Pre-requisites MAP Course Objectives: 1. Provide students with the fundamental knowledge needed to successfully practice the profession of agricultural and biological engineering in the area of heat and mass transfer. 2. Train students to design, test, and analyze systems and processes that involve transport phenomena. 3. Train students to formulate and solve heat and mass transfer problems and to use modern computational and experimental equipment. Upon successful completion of this course, the student should be capable of analyzing heat and mass transfer processes and making design calculations for many agricultural and biological engineering applications. This course will help students develop their ability to a) apply knowledge of mathematics, science and engineering, b) conduct experiments, analyze and interpret data, c) identify, formulate and solve engineering problems, d) communicate effectively (through lab reports and class discussion, and e) use techniques, skills, and modern engineering tools necessary for engineering practice. The course will consist of 3 lectures and 1 laboratory per week, problem sets, quizzes and examinations. Some of the laboratory sessions will be used to work example problems, for projects, discussions and lectures. 4. Contribution of course to meeting the professional component for ABET: This course contributes four (4) credit hours toward meeting the minimum 48 credit hours of Engineering Topics in the basic-level curriculum for the Bachelor of Science Degree in Agricultural and Biological Engineering. 5. Relationship of course to ABET program outcomes: From the list of (a) through (k) program outcomes listed below, this course addresses outcomes (a), (b), (e), and (k). ABET Program Outcomes: (a) Apply knowledge of mathematics, science, and engineering (b) Design and conduct experiments, as well as analyze and interpret data (c) Design a system, component, or process to meet desired needs (d) Function on multi-disciplinary teams (e) Identify, formulate, and solve engineering problems (f) Understand professional and ethical responsibilities (g) Communicate effectively (h) Understand the impact of engineering solutions in a global and societal context (i) Recognize the need for, and engage in life long learning (j) Understand contemporary engineering issues (k) Use the techniques, skills, and modern engineering tools necessary for engineering practice 6. Instructor: Dr. William Pelletier a. Office location: 101 Frazier Rogers Hall b. Telephone: Work: #101 c. address: wpelletier@ufl.edu d. Office hours: MWF 12:45 P.M. 1:45 P.M. & and by appointment.

2 7. Teaching Assistants: Emmanuel Ajayi a. Office location: TBD b. Telephone: TBD c. address: d. Office hours: TBD 8. Meeting Times: MWF 5 (11:45 A.M. 12:35 P.M.) 9. Laboratory Schedule: Th 8-10 (3:00 P.M. 6:00 P.M.) 10. Meeting Location: 129 Rogers Hall 11. Material and Supply Fees: n/a 12. Textbook Required: Cengel, Y. A. and Ghajar, A. J., Heat and Mass Transfer: Fundamentals and Applications, 5 th Edition, McGraw-Hill, New York, USA, 968 p. 13. Recommended Reading: n/a 14. Course Outline: Topics covered: a. Basic Concepts of Thermodynamics and Heat Transfer 1. Thermodynamics and heat transfer 2. Engineering heat transfer 3. Heat and other forms of energy 4. The first law of thermodynamics 5. Heat transfer mechanisms 6. Simultaneous heat transfer mechanisms b. Heat Conduction Equation 2. One-dimension heat conduction equation 3. General heat conduction equation 3. Boundary and initial conditions 4. Solution steady one-dimensional heat conduction 5. Heat generation in a solid 6. Variable thermal conductivity c. Steady Heat Conduction 1. Steady heat conduction in plane walls 2. Thermal contact resistance 3. Generalized thermal resistance networks 4. Heat conduction in cylinders and spheres 5. Critical radius of insulation 6. Thermal insulation 7. Transfer in common configurations

3 d. Transient Heat Conduction 1. Lumped system analysis 2. Transient heat conduction in large plane walls, long cylinders, and spheres. 3. Transient heat conduction in semi-infinite solids 4. Transient heat conduction in multidimensional systems e. Numerical Methods in Heat Conduction 1. Why numerical methods? 2. Finite difference formulation of differential equations 3. One-dimensional steady heat conduction 4. Two-dimensional steady heat conduction 5. Transient heat conduction 6. Controlling the numerical error f. Forced Convection 1. Physical mechanism of forced-convection 2. Velocity boundary layer 3. Thermal boundary layer 4. Flow over flat plates 5. Flow across cylinders and spheres 6. Flow in tubes g. Natural convection 1. Physical mechanisms of natural convection 2. Natural convection over surfaces 3. Natural convection inside enclosures 4. Natural convection from finned surfaces 5. Combined natural and forced convection h. Radiation Heat Transfer 2. Thermal radiation 3. Blackbody radiation 4. Radiation properties 5. Atmospheric and solar radiation 6. The view factor 7. Radiation heat transfer: black surfaces, diffuse, gray surfaces 8. Radiation shields and the radiation effect i. Heat Exchangers 1. Types of heat exchangers 2. The over-all heat transfer coefficient 3. Analysis of heat exchangers 4. The log-mean temperature difference method 5. The effectiveness-ntu method 6. Selection of heat exchangers j. Mass transfer 2. Analogy between heat and mass transfer 3. Mass diffusion 4. Boundary conditions 5. Steady mass diffusion through a wall 6. Water vapor migration in buildings 7. Transient mass diffusion

4 8. Diffusion in a moving medium 9. Mass convection 10.Simultaneous heat and mass transfer k. Psychrometrics 1. Ideal gas laws 2. Definition of psychrometric terms 3. The psychrometric chart l. Principles of Refrigeration 1. Vapor compression refrigeration cycle 2. P-h charts 3. Refrigerants 4. Components of refrigeration systems 5. Accessory equipment 6. Absorption 15. Attendance, Expectations and Behavior: Attendance (on time) at lectures and laboratory sessions is expected from all students at all times. Cell phones must be silenced prior to the start of class and exams. No food will be permitted. 16. Homework Assignments: Assignments must be presented on 8.5" x 11" paper; on one side only. Assignments will be marked down for a sloppy presentation and, if excessive, they may be returned un-graded. Laboratory and project reports, including all calculations, must be typed. Homework assignments as well as laboratory and project reports must be turned in before class begins. Assignments returned late, before 4:00 PM on the day they were due, will be marked down by 10% of their total. Assignments returned late, before 4:00 PM on the day following the due date will be marked down by 50% of their total (assignment must be ed if submitted on a Saturday). No assignments will be accepted after 4:00 P.M. on the following day. 17. Grading: Final Comprehensive Examination 1 20% 10:00 A.M.) Two Examinations 40% 3:00 P.M.; 3:00 P.M.) Problem Sets /Quizzes 20% Laboratories 2 /Projects 10% Attendance 10% 1. Students that have cumulated an average of A for the first two examinations, submitted all homework assignments (high quality), and show excellent attendance (A) to class (including the period after the second examination) will be exempt from writing the final examination and will receive an A for the class. 2. Grades for laboratories will be distributed between laboratory attendance and report(s) 18. Grading Scale: A [90-100%], A- [87-90%[ B+ [84-87%[, B [80-84%[, B- [77-80%[, C+ [74-77%[, C [70-74%[, C- [67-70%[, D+ [64-67%[, D [60-64%[, D- [< 60%] 19. Make-up Exam Policy: No make-up exams will be given except for valid medical reasons or unless prior arrangements have been made. 20. Honesty Policy All students admitted to the University of Florida have signed a statement of academic honesty committing themselves to be honest in all academic work and understanding that failure to comply with this commitment will result in disciplinary action. This statement is a reminder to uphold your obligation as a UF student and to be honest in all work submitted and exams taken in this course and all others.

5 21. Accommodation for Students with Disabilities Students requesting classroom accommodation must first register with the Dean of Students Office. That office will provide the student with documentation that he/she must provide to the course instructor when requesting accommodation. 22. UF Counseling Services Resources are available on-campus for students having personal problems or lacking clear career and academic goals. The resources include: University Counseling Center, 301 Peabody Hall, , Personal and Career Counseling. SHCC mental Health, Student Health Care Center, , Personal and Counseling. Center for Sexual Assault/Abuse Recovery and Education (CARE), Student Health Care Center, , sexual assault counseling. Career Resource Center, Reitz Union, , career development assistance and counseling. 23. Software Use All faculty, staff and student of the University are required and expected to obey the laws and legal agreements governing software use. Failure to do so can lead to monetary damages and/or criminal penalties for the individual violator. Because such violations are also against University policies and rules, disciplinary action will be taken as appropriate. We, the members of the University of Florida community, pledge to uphold ourselves and our peers to the highest standards of honesty and integrity.