heat transfer review notes2.notebook

6
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).

Upload: others

Post on 18-Apr-2022

2 views

Category:

Documents


0 download

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.