HEAT PUMPSHEAT PUMPS

BY: DINESH BAKTHAVATSALAMBY: DINESH BAKTHAVATSALAM

ID#: 20192297ID#: 20192297

4M-I4M-I

OVERVIEWOVERVIEW

A device which moves heat energy from one A device which moves heat energy from one place to another and from a lower to a higher place to another and from a lower to a higher temperature.temperature.

Heat is removed from ambient air or water, soil Heat is removed from ambient air or water, soil or bedrock and delivered to where it is neededor bedrock and delivered to where it is needed

In cooling applications, the reverse happens and In cooling applications, the reverse happens and heat is removed, to be discharged to the heat is removed, to be discharged to the ambient air, water, soil or rock.ambient air, water, soil or rock.

COMPONENTS OF HEAT PUMPCOMPONENTS OF HEAT PUMP

A heat source and the means of extracting A heat source and the means of extracting heat.heat.

The circuit of working fluid within the heat The circuit of working fluid within the heat pump itself and a power source.pump itself and a power source.

A distribution system to deliver the energy A distribution system to deliver the energy in the required form.in the required form.

HEAT SOURCESHEAT SOURCES

Heat from waterHeat from water

Air Air

The ground The ground

Waste heat from industrial processesWaste heat from industrial processes

HOW IT FUNCTIONSHOW IT FUNCTIONS

A heat pump consists of A heat pump consists of four elements; four elements; evaporatorevaporator, , compressorcompressor, , condensercondenser and and expansion valveexpansion valve..The working fluid The working fluid changes from liquid to changes from liquid to gas (evaporates) as heat gas (evaporates) as heat is absorbed from the heat is absorbed from the heat source.source.Working fluid condenses Working fluid condenses to liquid as heat is to liquid as heat is released to where it is released to where it is needed.needed.

ADVANTAGESADVANTAGES

Energy Efficient:Energy Efficient: consume a little energy in order consume a little energy in order to deliver three or four times as much energy as to deliver three or four times as much energy as heat.heat.

Environmental:Environmental: Heat pumps access renewable Heat pumps access renewable or waste energyor waste energy

Physical:Physical: No visible external equipment, no No visible external equipment, no external fans, quiet running, very little risk of external fans, quiet running, very little risk of accidental damage, adaptable to many accidental damage, adaptable to many locations.locations.

APPLICATION OF HEAT PUMPS:APPLICATION OF HEAT PUMPS:

Some application of Heat pumps are:Some application of Heat pumps are:

Air conditionsAir conditions

RefrigeratorsRefrigerators

Home thermostatsHome thermostats

Car cooling systemsCar cooling systems

SOURCES:SOURCES:http://www.heatpumpnet.org.uk/http://www.heatpumpnet.org.uk/ http://www.howstuffworks.comhttp://www.howstuffworks.com