Fundamentals of Heat Transfer<br />CM 162<br />Prof. Brad Hyatt<br />
What is heat transfer?<br />Theory used to explain how heat moves between objects<br />Theory used to estimated heat loss ...
Modes of Heat Transfer<br />
Modes of Heat Transfer<br />Conduction<br />
Modes of Heat Transfer<br />Conduction<br />Convection<br />
Modes of Heat Transfer<br />Conduction<br />Convection<br />Radiation<br />
Conduction<br />
Conduction<br />Movement of heat between two substances in contact with each other<br />Most efficient mode of heat transf...
Conduction<br />
Convection<br />
Convection<br />Motion of heated or cooled mass<br />Transfer between a surface and a moving fluid<br />Liquid<br />Gas<br...
Convection<br />
Convection<br />Natural Convection<br />As fluid is heated, it expands<br />Thus “heat rises” naturally<br />Forced Convec...
Radiation<br />
Radiation<br />Movement of electromagnetic waves<br />Whenever 2 substances of different temperatures in view of each othe...
Radiation<br />
Summary<br />3 Modes of Heat Transfer:<br />Conduction<br />Convection<br />Radiation<br />
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Heat transfer

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Heat transfer

  1. 1. Fundamentals of Heat Transfer<br />CM 162<br />Prof. Brad Hyatt<br />
  2. 2. What is heat transfer?<br />Theory used to explain how heat moves between objects<br />Theory used to estimated heat loss in building’s interior<br />
  3. 3. Modes of Heat Transfer<br />
  4. 4. Modes of Heat Transfer<br />Conduction<br />
  5. 5. Modes of Heat Transfer<br />Conduction<br />Convection<br />
  6. 6. Modes of Heat Transfer<br />Conduction<br />Convection<br />Radiation<br />
  7. 7. Conduction<br />
  8. 8. Conduction<br />Movement of heat between two substances in contact with each other<br />Most efficient mode of heat transfer<br />Calculate using Fourier’s law of conduction<br />
  9. 9. Conduction<br />
  10. 10. Convection<br />
  11. 11. Convection<br />Motion of heated or cooled mass<br />Transfer between a surface and a moving fluid<br />Liquid<br />Gas<br />Or transfer between one region in fluid to another<br />
  12. 12. Convection<br />
  13. 13. Convection<br />Natural Convection<br />As fluid is heated, it expands<br />Thus “heat rises” naturally<br />Forced Convection<br />Cooled liquid is forced across warm substance in order to remove heat<br />Often by fan or pump<br />
  14. 14. Radiation<br />
  15. 15. Radiation<br />Movement of electromagnetic waves<br />Whenever 2 substances of different temperatures in view of each other … radiation occurs<br />Does not require a medium (i.e., fluid or solid contact)<br />
  16. 16. Radiation<br />
  17. 17. Summary<br />3 Modes of Heat Transfer:<br />Conduction<br />Convection<br />Radiation<br />

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