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heat transfer review notes2.notebook December 13, 2016
Heat Transfer Notes
A. Solid
B. Melting point
C. Liquid
D. Boiling point
E. Gas
DYK? Heat moves from areas of high heat to areas of low heat (hot to cold).
heat transfer review notes2.notebook December 13, 2016
Heat is transferred in three different ways.
1. Conduction direct contact.
Example a pan on a stove burner.
2. Convection heat transfer through liquids and gases.
Example: Wind
heat transfer review notes2.notebook December 13, 2016
3. Radiation transfer through electromagnetic waves.
Example: sun light
Checkpoint What heat transfer method is this?
heat transfer review notes2.notebook December 13, 2016
Checkpoint What heat transfer method is this?
Add a paragraph
You will write a short paragraph explaining conduction, convection and radiation.
Raise your hand when done.
For the word search, use page 23, Forms of Energy.
heat transfer review notes2.notebook December 13, 2016
Heat Transfer Applications• Heat Engine converts thermal energy
into mechanical energy.> Example: the gasoline engine of a car.
Systems that Transfer Heat• Heat Pump transfers heat from outside
to inside a building in winter.> Really a heat engine in reverse.
• Geothermal Energy from inside the Earth.> Can be used to heat homes, cook, and
generate electricity.• Refrigerator transfers heat away from
food to keep it cool.
heat transfer review notes2.notebook December 13, 2016
Controlling Heat Transfer
Thermostat a thermometer attached to a switch.
automatically turns on and off the heat transfer device.