Transcript
Page 1: heat transfer review notes2.notebook

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).

Page 2: heat transfer review notes2.notebook

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

Page 3: heat transfer review notes2.notebook

heat transfer review notes2.notebook December 13, 2016

3.   Radiation ­­ transfer through electromagnetic waves.

Example:  sun light

Checkpoint ­­ What heat transfer method is this?

Page 4: heat transfer review notes2.notebook

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.

Page 5: heat transfer review notes2.notebook

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.  

Page 6: heat transfer review notes2.notebook

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.