Syllabus for EGM-323
HEAT TRANSFER
This course focuses on heat transfer by modes of conduction, convection, and radiation, including the fundamental principles of heat transfer and radiation and application to the solution of industrial heat transfer problems.
Energy exists in several forms. In heat transfer, the focus is on heat, which is the form of energy that can be transferred from one system to another as a result of temperature difference. While thermodynamics is concerned with the amount of heat transferred, heat transfer is concerned with the rate of heat transfer (heat transfer per unit time). Thermodynamics deals with equilibrium states and the amount of change from one equilibrium state to another. Heat transfer, on the other hand, deals with systems that lack thermal equilibrium, and thus it is a non-equilibrium phenomenon.
The basic requirement is that there is a temperature difference. This is the driving force for heat transfer to occur. Generally the temperature difference is specified as a temperature gradient because it includes the amount of heat that is transferred per unit time per unit length.
The three types of heat transfer are conduction, convection, and radiation. Each will be examined in detail starting with steady state and transient heat conduction, followed by external and internal forced convection. Natural convection is treated separately. Radiation heat transfer does not require the presence of a material medium and it suffers no attenuation in a vacuum. The theoretical foundation for radiation heat transfer is based on electromagnetic energy emitted by matter as a result of the changes in the electronic configuration of the atoms or molecules.
Heat exchangers generally exchange heat between two fluids that are at different temperatures while keeping them from mixing with each other. Heat transfer mechanisms usually involve convection in each fluid and conduction through the wall separating the two fluids. If the temperature of one of the conducting surfaces is high enough, radiation heat transfer may also occur (e.g., surface of a fuel pin in a nuclear reactor core that is not in contact with some coolant). We will classify numerous types of heat exchangers, each with its own characteristic overall heat transfer coefficient and logarithmic mean temperature difference (LMTD) value.
After completing this course, students will be able to:
CO1 Solve basic heat transfer problems (conduction, convection, radiation) encountered in practice.
CO2 Develop thermal resistance networks to solve steady state conduction problems involving
single and multi-layer rectangular, cylindrical, or spherical geometries.
CO3 Analyze the phenomena of transient heat conduction where the temperature distribution varies
with both time and position in one- and multidimensional systems.
CO4 Explain the mechanism of heat transfer through a fluid in the presence of bulk fluid motion that
flows over a surface (external forced convection).
CO5 Explain the mechanism of heat transfer through a fluid in the presence of bulk fluid motion that
flows in a confined space (internal forced convection).
CO6 Evaluate heat transfer by natural convection for various geometries, including finned surfaces
and enclosures (vertical, horizontal, inclined plates, cylinders, and spheres).
CO7 Calculate radiation heat transfer between ‘black’ surfaces using electromagnetic radiation
principles and blackbody definitions of emissivity, absorptivity, reflectivity, and transmissivity on
spectral and total basis.
CO8 Perform a general energy analysis for various types of heat exchangers given that the heat
exchange process involves convection between two fluids and conduction through the wall
separating them.
You will need the following materials to complete your coursework. Some course materials may be free, open source, or available from other providers. You can access free or open-source materials by clicking the links provided below or in the module details documents. To purchase course materials, please visit the University's textbook supplier.
ISBN-13: 978-0078027680
[Note: This course will cover Part III of this book. This book is also used in EGM-221:Thermodynamics and EGM-331: Fluid Mechanics courses.]
ISBN-13: 978-0070502079
For those students who have not applied their Calculus I knowledge recently, the following web-linked math tutorials are recommended for refresher.
Heat Transfer is a three-credit, online course consisting of seven modules. Modules include an overview, topics, study materials, and activities. Module titles are listed below.
Course objectives covered in this module: CO1
Course objectives covered in this module: CO1, CO2
Course objectives covered in this module: CO1, CO3
Course objectives covered in this module: CO1, CO4, CO5
Course objectives covered in this module: CO1, CO6
Course objectives covered in this module: CO1, CO7
Course objectives covered in this module: CO1, CO8
For your formal work in the course, you are required to participate in online discussion forums, complete application exercises, and complete a midterm and a final exam. See below for more details.
Consult the Course Calendar for assignment due dates.
One or more of your course activities may utilize a tool designed to promote original work and evaluate your submissions for plagiarism. More information about this tool is available in About SafeAssign.
You are required to complete seven discussion forum assignments. Discussion forums are on a variety of topics associated with the course modules.
For posting guidelines and help with discussion forums, please see the Student Handbook located within the General Information page of the course website.
You are required to complete seven application exercises. The assignments are on a variety of topics associated with the course modules.
For help regarding preparing and submitting assignments, see the Student Handbook located within the General Information page of the course website.
You are required to take two proctored online examinations. The exams require that you use the University's Online Proctor Service (OPS). Please refer to the Examinations and Proctors section of the Online Student Handbook (see General Information area of the course website) for further information about scheduling and taking online exams and for all exam policies and procedures. You are strongly advised to schedule your exams within the first week of the semester.
Online exams are administered through the course website. Consult the Course Calendar for the official dates of exam weeks.
Ungraded and untimed practice exams for the midterm and final exam are available. Since these practice exams contain questions that are similar to those that you will see on the graded exams, they should serve as an effective way to prepare for the exams. In the Examinations section of the course website, click on the Practice Midterm Exam link or the Practice Final Exam link to begin.
Note: For a list of key concepts that may appear on your exam, refer to the study guide available in the Examinations section of the course website.
The midterm examination is an open-book, three-hour exam worth 20 percent of your course grade. It will consist of eight problems to solve and covers all topics and material from Modules 1 through 3 of the course.
You can use your book; a scientific, graphing, or financial calculator (no phones or tablets); and scratch paper during the exam.
Note: For a list of key concepts that may appear on your exam, refer to the study guide available in the Examinations section of the course website.
The final examination is an open-book, three-hour exam worth 20 percent of your course grade. It will consist of eight problems to solve and covers all topics and material from Modules 4 through 7 of the course.
You can use your book; a scientific, graphing, or financial calculator (no phones or tablets); and scratch paper during the exam.
You are on your honor not to cheat during the exam. Cheating means:
If there is evidence that you have cheated or plagiarized in your exam, the exam will be declared invalid, and you will fail the course.
Your grade in the course will be determined as follows:
All activities will receive a numerical grade of 0–100. You will receive a score of 0 for any work not submitted. Your final grade in the course will be a letter grade. Letter grade equivalents for numerical grades are as follows:
A | = | 93–100 | C+ | = | 78–79 | |
A– | = | 90–92 | C | = | 73–77 | |
B+ | = | 88–89 | C– | = | 70–72 | |
B | = | 83–87 | D | = | 60–69 | |
B– | = | 80–82 | F | = | Below 60 |
To receive credit for the course, you must earn a letter grade of C or better (for an area of study course) or D or better (for a course not in your area of study), based on the weighted average of all assigned course work (e.g., exams, assignments, discussion postings).
To succeed in this course, take the following first steps:
Consider the following study tips for success:
To ensure success in all your academic endeavors and coursework at Thomas Edison State University, familiarize yourself with all administrative and academic policies including those related to academic integrity, course late submissions, course extensions, and grading policies.
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