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ME204: Heat Transfer

Unit 1: Introduction to Heat Transfer   This first unit will introduce you to the subject of heat transfer.  Mechanical engineers use the knowledge about heat transfer to solve many real-world problems from maintaining house temperature at a comfortable level to making fuel rods in nuclear reactors not overheated.  We will discuss three basic methods of heat motion: convection, conduction, and radiation.  In this section, we will also explore the similarities between heat transfer and thermodynamics.

Unit 1 Time Advisory
This unit will take you approximately 8 hours to complete.

☐    Video Lecture: 1 hour

☐    Readings: 6 hours

☐    Assignment: 1 hour

Unit1 Learning Outcomes
Upon successful completion of this unit, the student will be able to: - Define different modes of heat transfers. - Derive energy conservation equations for a control volume and a control surface.

  • Web Media: MIT’s “Heat Transfer Experiment Video” Link: MIT’s “Heat Transfer Experiment Video” (YouTube)
     
    Instructions: Please watch this video (5:54), which provides a brief overview of the three mechanisms of heat transfer and how each mechanism is used in engineering design.  Find similar heat transfer phenomena that you encounter in your everyday life.
     
    Terms of Use: Please respect the copyright and terms of use displayed on the webpage above.

  • Web Media: YouTube: University of Colorado Boulder’s “Introduction to Heat Transfer (Potato Example)” Link: YouTube: University of Colorado Boulder: “Introduction to Heat Transfer (Potato Example)” (YouTube)
     
    Instructions: Please watch this video (7:56), which demonstrates the basic concepts of heat transfer using potatoes as example.
     
    Terms of Use: Please respect the copyright and terms of use displayed on the webpage above.

  • Reading: MIT: Professors John Lienhard IV and John Lienhard V’s A Heat Transfer Textbook: “Chapter 1” Link: MIT: Professors John Lienhard IV and John Lienhard V’s A Heat Transfer Textbook: “Chapter 1” (PDF)
     
    Instructions: Please click on the link “Download A Heat Transfer Textbook,” which will take you to a download request form.  After you fill in relevant information about you, you will be able to download the book.  Note that the only information required on the form is your city, country, and occupation.  The book is in PDF format (17.2 MB).  Save a copy of the book for future use.  This is one of the best books on heat transfer.  For this unit, please read “Chapter 1: Introduction” (page 3-35).  The reading discusses the applications of heat transfer in everyday life (section 1.1), the relationship between the first law of thermodynamics and heat transfer (section 1.2), as well as different modes of heat transfer (section 1.3).  You may simply browse this reading. Note that the reading will cover the material that you need to know for all subunits in Unit 1.
     
    Terms of Use: Please respect the copyright and terms of use displayed on the webpage above.

  • Lecture: YouTube: Indian Institute of Technology (IIT) Bombay: Professor S.P.Sukhatme and Professor U.N.Gaitonde’s “Lecture 1: Introduction to Heat and Mass Transfer,” “Lecture 2: Introduction-2,” and “Lecture 3: Introduction-3” Link: YouTube: Indian Institute of Technology (IIT) Bombay: Professor S.P.Sukhatme and Professor U.N.Gaitonde’s “Lecture 1: Introduction to Heat and Mass Transfer“Lecture 2: Introduction-2”, and “Lecture 3: Introduction-3” (YouTube)

    Instructions: Please watch these videos (about 50-54 minutes for each video), which will introduce you to the basic concepts of heat transfer.  The videos will cover the material that you need to know for Unit 1.  In Lecture 1, pay attention to the discussion on the distinction between heat transfer and thermodynamics at the 8:00 minute mark.  Compare how Professor S.P. Sukhatme defined heat transfer and sections 1.1 and 1.2 in the Lienhard-Lienhard textbook.  Lecuture 2 introduced the concepts of control volume and the derivation of first law of thermodynamics for a control volume.  Lecture 3 introduced you to the three modes of heat transfer: conduction, convection, and radiation.  This lecture reinforces what you learned from section 1.3 of the Lienhard-Lienhard textbook.

    Terms of Use: Please respect the copyright and terms of use displayed on the webpages above.

1.1 Overview of Heat Transfer   Note: This topic is covered by the resources below the Unit 1 introduction.

1.2 Heat Transfer and Thermodynamics   Note: This topic is covered by the resources below the Unit 1 introduction.

1.3 Three Modes of Heat Transfer: Conduction, Convection, and Radiation   Note: This topic is covered by the resources below the Unit 1 introduction.

Unit 1 Assessment   - Assessment: The Saylor Foundation's "Unit 1 Assessment" Link: The Saylor Foundation’s “Unit 1 Assesment” (PDF) and “Unit 1 Assessment Answer Key” (PDF).
 
Instructions: Please download the quiz linked above, and answer each question before checking your answers against the answer key.