Lecture 1 Heat Transfer Mechanical Engineering.pptx

Lecture 1 Heat Transfer Mechanical Engineering.pptx

1. ME 333 Heat Transfer Lecture 1 Spring 2023

2. Instructor’s Profile Summary 2 TAQI AHMAD CHEEMA Associate Professor in Mechanical Engineering, GIK Institute of Engineering Sciences & Technology, Pakistan [email protected] EDUCATION 2014 PhD in Mechanical Engineering Kyungpook National University, Daegu, Korea. 2009 Master of Science in Mechanical Engineering Hanyang University, Seoul, Korea. 2005 Bachelor of Science in Mechanical Engineering Univ. Engineering & Technology, Taxila, Pakistan RESEARCH INTERESTS Thermo-Fluids Hemodynamics Fluid Structure Interaction (FSI) CFD Applications Renewable Energy

3. Course Contents Chapter 1 - Introduction Chapter 2 - Introduction to conduction Chapter 3 - Steady one-dimensional conduction Chapter 4 - Two and three-dimensional steady state conduction Chapter 6 - Introduction to convective heat transfer Chapter 7 - External forced convection Chapter 8 - Internal forced convection Chapter 11 - Heat exchanger design Chapter 12 - Radiation: Processes and properties Chapter 13 - Radiation exchange between surfaces 3

4. Course Material Textbook Fundamentals of Heat and Mass Transfer, 8 th Edition b y T. L. Bergman and A. S. Lavine (E-copy Available at GIKI Digital Library) Reference Books Heat Transfer: A Practical Approach, 4 th Edition, By Yunus A. Cengel Heat Transfer by J. P. Holman Lecture Handouts PPT slides shown in the class available at \\10.1.17.20 4

5. Grading Policy 5 Assignment Sessions (5): 13% Quizzes (7): 7% Complex Engineering Problem (1) 10% Mid Exam (1): 30% Final Exam (1): 40% Note : Expectedly, there will be a quiz or assignment session every week except for the 1 st ,9 th and 15 th week. Attendance Policy 80% attendance is mandatory to appear in final exam. After 5 mins of start of class, no attendance will be marked. Institute leave policy will be followed. Re-take of quizzes/assignment session is not allowed.

6. Complex Engineering Problem-Schedule 6 Announcement: 24 th February 2023 First Report Submission: 10 th March 2023 Second Report Submission: 14 th April 2023 Note : CEP group size should not be more than 3 members . CEP Grading Policy 1 st Report write up 02 Marks 2 nd Report write up 01 Marks New Design/Idea/Modification 03 Marks Computational Ability 02 Marks Conclusion and Referencing 02 Marks Total 10 Marks

7. 7 Course Learning Outcomes ME333 HEAT TRANSFER Sr. No Course Learning Outcomes PLOs Blooms Taxonomy The students will be able: CLO_1 To illustrate the basic principles of conduction, convection and radiation heat transfer. PLO1 C3 (Applying) CLO_2 To conduct heat transfer analysis of various thermal systems using various governing equations of heat flow.   PLO2   C4 (Analyzing) CLO_3 To design various industrial equipments based on heat transfer calculations.   PLO3     C5 (Synthesizing) CLO_4a To assess the design and performance of a thermal system under various conditions using computational tools.   PLO5 C6 (Evaluating) CLO_4b To respond to the inspiration steered by the assigned problems. A2 (Responding)   Course is evaluated at a level of C6 (Evaluating)

8. Review of Thermodynamics 8 Thermodynamics Therme (Heat) Dynamics (Power) Work and Heat : Energy Interactions or Boundary Interactions. Thermodynamics is concerned with equilibrium states of matter. Determines amount of heat required for a system to pass from one equilibrium state to another. Thermodynamics is the science of energy. Energy Conversion

9. Limitations of Thermodynamics 9 How Heat is Exchanged? Rate of Heat Exchange? Quantify the rate of heat exchange? Temperature Distribution? Q: What is the difference between heat capacity and thermal conductivity of a material?

10. Heat Transfer and its Applications 10 Heat transfer (or heat) is thermal energy in transit due to a spatial temperature difference.

11. How Heat is Transferred? 11 Conduction Convection Radiation Modes of Heat Transfer Heat transfer is the study of how ( mechanisms ) energy is transferred due to a temperature difference. Whenever there exists a temperature difference in a medium or between media, heat transfer must occur.

12. Units and Notations 12