HEAT PUMPS

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HEAT PUMPS

• BY DINESH BAKTHAVATSALAM
• ID 20192297
• 4M-I

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OVERVIEW

• A device which moves heat energy from one place
  to another and from a lower to a higher
  temperature.
• Heat is removed from ambient air or water, soil
  or bedrock and delivered to where it is needed
• In cooling applications, the reverse happens and
  heat is removed, to be discharged to the ambient
  air, water, soil or rock.

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COMPONENTS OF HEAT PUMP

• A heat source and the means of extracting heat.
• The circuit of working fluid within the heat
  pump itself and a power source.
• A distribution system to deliver the energy in
  the required form.

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HEAT SOURCES

• Heat from water
• Air
• The ground
• Waste heat from industrial processes

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HOW IT FUNCTIONS

• A heat pump consists of four elements
  evaporator, compressor, condenser and expansion
  valve.
• The working fluid changes from liquid to gas
  (evaporates) as heat is absorbed from the heat
  source.
• Working fluid condenses to liquid as heat is
  released to where it is needed.

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ADVANTAGES

• Energy Efficient consume a little energy in
  order to deliver three or four times as much
  energy as heat.
• Environmental Heat pumps access renewable or
  waste energy
• Physical No visible external equipment, no
  external fans, quiet running, very little risk of
  accidental damage, adaptable to many locations.

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APPLICATION OF HEAT PUMPS

• Some application of Heat pumps are
• Air conditions
• Refrigerators
• Home thermostats
• Car cooling systems

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SOURCEShttp//www.heatpumpnet.org.uk/
http//www.howstuffworks.com