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EML 4140 - Heat Transfer – Spring 2011
Instructor: Dr. Saeed Moghaddam
Department of Mechanical and Aerospace Engineering
Office: 310 MAE-A
Phone: 392-0889: E-mail: [email protected]
Office Hours: M-W-F 10:00 AM to 11:30 AM
Available after class and by appointment at other times
No homework assistance by e-mail
Teaching Assistants:
Sampath Karthikeyan ([email protected])
Prasanna Venuvanalingam ([email protected])
Benjamin Greek ([email protected])
Office Hours: Tuesday and Thursday, 1:30 PM to 3:30 PM
Room 130 in Building MAE-C
Required Text: Fundamentals of Heat and Mass Transfer,
F.P. Incropera, D.P. DeWitt, T.L. Bergman, and A.S. Lavine
6th Edition (John Wiley & Sons, 2007)
Course Website: Sakai
Prereq: EML 3100, EGM 4313
Meeting Time & Place: M-W-F, 5th Period, Room 0270 WEIL
Course Objectives and Outcomes: This course provides an intermediate level coverage of
thermal transport processes via conduction, convection, and radiation heat transfer. This
course stresses fundamental engineering science principles applied to engineering
thermal analysis. Students will learn to apply the conservation of energy to control
volumes and express the conservation of energy through mathematical formulations,
including both steady state and transient analyses, with emphasis on the fundamental
physics and underlying mathematics associated with heat transfer. Upon completion of
this course, students are expected to understand basic heat transfer problem formulation
and solution techniques, coupled with a strong foundation and appreciation for the
physics of heat transfer.
Program Objectives and Outcomes: EML 4140 supports several educational objectives
enumerated in the Mission Statement of the Department of Mechanical and Aerospace
Engineering. Specific objectives supported by this course include: 1) To understand and
perform engineering analyses in the area of thermal systems, 2) To comprehend
quantitative, analytical, and experimental methods, 3) To acquire the knowledge base,
confidence, and mental discipline for self-education and a lifetime of learning.
Course Outline:
First unit: January 5 through February 16
1. Introduction to heat transfer and rate laws
2. Fourier’s Law and heat diffusion equation
3. Rate equations and conservation of energy
4. Introduction to conduction
5. One-dimensional steady-state conduction (planar and cylindrical)
6. Contact resistance and thermal circuits
7. Heat transfer from extended surfaces
8. Two-dimensional steady state heat transfer: Finite difference method
9. Energy Balance method for nodal equations and boundary nodes
10. Transient conduction, lumped capacitance method
11. Transient conduction and exact solutions
Reading material:
1. Chapters 1 and 2
2. Chapter 3
3. Chapter 4
4. Chapter 5 (omit 5.10)
Second unit: February 18 through March 28
1. Introduction to convective transport processes
2. Introduction to boundary layers
3. Convective transport equations in differential form
4. Dimensionless variables and Reynolds analogy
5. Effects of turbulence
6. Introduction to external flow heat transfer
7. External flow heat transfer correlations
8. Introduction to internal flow heat transfer
9. Internal flow heat transfer coefficient and correlations
10. Introduction to natural convection
11. Introduction to phase change heat transfer
Reading material:
1. Chapter 6 (omit 6.7 and 6.8)
2. Chapter 7
3. Chapter 8 (omit 8.7 through 8.9)
4. Chapter 9 (omit 9.7 to 9.9)
5. Chapter 10 (omit 10.5 to 10.11)
Third unit: March 30 through April 20
1. Introduction to radiation heat transfer exchange
2. Geometry, radiation intensity, emissive power
3. Irradiation and radiosity
4. Blackbody radiation exchange
5. Band emission
6. Emissivity, reflectivity, absorptivity, transmissivity
7. Kirchoff’s Laws
8. Radiation view factors
9. Net radiation exchange among surfaces
10. Black body surfaces
11. Gray-Diffuse surfaces
Reading material:
1. Chapter 12
2. Chapter 13 (omit 13.4 and 13.5)
Examination Schedule:
1. Exam I on Wednesday, February 16th 8:00 PM to 10:00 PM
2. Exam II on Monday, March 28th 8:00 PM to 10:00 PM
3. Exam III on Wednesday, April 20th 8:00 PM to 10:00 PM
4. Final Exam on Monday, April 25th 5:30 PM to 7:30 PM
5. All exams are closed book. For the first 3 exams, you may bring in two sheets of paper
(8.5” x 11.5”) with whatever notes you want on both the front and back. On the final
exam, you may bring six sheets of paper with notes on the front and back.
You should bring a calculator for all exams.
Course Grading:
1. Grading basis:
Homework
3 1-hour Exams
Final Exam
Total
15%
60% (3 at 20% each)
25%
100%
2.
Homework: Ten homework assignments total. Homework is due at beginning of the
lecture on the assigned due date. Final homework grade equals the lesser of 100% or
( HWi )/9, for i =1 to 10. Show all work, clearly mark answers, and be neat.
3.
Final Exam will be comprehensive.
4.
Grading Scale: The standard deviation of your four test scores will be added to your
lowest test score. Additional curves may be applied, as determined by the overall
grade distribution of the class.
Class Policies:
1.
Regular class attendance is expected and encouraged. Each student is responsible for all
of the material presented in class and in the reading assignments. Exams will emphasize
treatment of material covered in lectures.
2.
All homework assignments and projects are to be turned in at the beginning of the
designated class period. In general, no late assignments will be accepted or makeup
exams given. Exceptions will be made for a valid excuse consistent with University
Policy. Exceptions may also be made if deemed appropriate, but please contact me
ahead of time.
3.
SOME collaboration is allowable on homework, but each student is responsible for
performing the bulk of his or her own homework assignment. The copying of solutions
from the Solutions Manual (or copies from) is considered cheating, and is not allowed.
4.
NO collaboration is allowed on exams.
5.
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.
6.
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. This process must be completed in advance.
7.
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, 392-1575; SHCC Mental Health,
Student Health Care Center, 392-1171; Center for Sexual Assault/Abuse Recovery and
Education (CARE), Student Health Care Center, 392-1161. Career Resource Center,
Reitz Union, 392-1601, for career development assistance and counseling.
8.
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.
Catalog Description: Credits: 3; Steady state and transient analysis of conduction and radiation
heat transfer in stationary media. Heat transfer in fluid systems, including forced and free
convection.
Contribution of course to meeting the ABET professional component:
4A. EML 4140 supports several program outcomes enumerated in the Mission Statement of the
Department of Mechanical and Aerospace Engineering. Specific ME program outcomes
supported by this course include:
(1) Using knowledge of chemistry and calculus based physics with depth in at least one
of them (ME Program Outcome M1);
(2) Using knowledge of advanced mathematics through multivariate calculus and
differential equations (ME Program Outcome M2);
(3) Being able to work professionally in the thermal systems area (ME Program Outcome
M4).
4B. Mathematical Sciences (15%), Physical Sciences (15%), Engineering Sciences (70%)
Relationship of course to ABET program outcomes:
This course achieves the following ABET outcomes. Note that the outcome number corresponds
to the respective ABET outcomes (a) through (k).
(a) Apply knowledge of mathematics, science, and engineering: Outcome (a), method of
assessment is specially selected problems on three exams and homework.
(e) Identify, formulate, and solve engineering problems: Outcome (e), method of assessment is
specially selected problems on three exams and homework.
(i) Recognize the need for, and engage in lifelong learning: Outcome (i), method of assessment
is several critiques of research papers in the field of Heat Transfer and critiquing
professional seminars in Heat Transfer.
(k) Use the techniques, skills, and modern engineering tools necessary for engineering practice:
Outcome (k), method of assessment is specially selected problems on three exams and
homework.