A heat pump is a machine or device that moves heat from one location (the 'source') to another location, using mechanical work. Most heat pump technology moves heat from a low temperature heat source to a higher temperature heat sink.
This is known as conduction. Conduction is the flow of thermal energy from an area of high energy to an area of lower energy.
Convection
transfer energy by vibrating particles of matter
When thermal energy is added to particles of matter, it causes the particles to move faster and emit more energy.
Matter is needed to transfer thermal energy by conduction and convection. Conduction happens through a substance when there is a difference in thermal energies between regions. Convection is the movement within a fluid caused by hotter material to rise and colder material to sink and transfer heat.
Energy transfer by radiation.
Convection
heat tranfer dope
transfer energy by vibrating particles of matter
When thermal energy is added to particles of matter, it causes the particles to move faster and emit more energy.
When thermal energy is taken away from matter particles move more slowly. When thermal energy is added to matter particles move faster.
conduction
Matter is needed to transfer thermal energy by conduction and convection. Conduction happens through a substance when there is a difference in thermal energies between regions. Convection is the movement within a fluid caused by hotter material to rise and colder material to sink and transfer heat.
Conduction
Energy transfer by radiation.
thermal expansion.
convection
convection