Heat Transfer
LG3 Violet

Conduction

Radiation

Convection

Heat transfer can be absorbed, reflected, or transmitted through open space

The transfer of heat through a fluid due to of direct contract

The process by which food can be heated by liquids or gases

Examples

When making cupcakes the pan heats up, which transfer the heat to the cupcakes

image

image

Examples

Microwave

campfire

image

image

Microwaves use radiation as the method of heat transfer

Examples

image

Hot air balloons

Which is caused by molecular motion

Hot gas or liquid rise, while cooler gas liquid sinks

When the heat from the stove to the pot

image

It's a thermal radiation

Ice melting

This is because with the ice

image

Two types of convection

Natural Convection

Forced Convection

A pump

It's a device that moves fluids (liquids or gases) it converted from electrical energy into hydraulic energy

Fan

It blows air past you in hot surroundings and cools you by replacing the air with cooler air

Buoyant forces

Hot fluid rises and cold fluid sinks because density decreases as temperature increases

Sea breeze

Pot of water

The hotter water expands and rises to transfer heat to other parts of the water, while colder water sinks to the bottom

image