geothermal heating / geothermal heat pumps

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Geothermal Heating / Geothermal Heat Pumps Allie Paccadolmi

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Geothermal Heating / Geothermal Heat Pumps. Allie Paccadolmi. How T hey Work. “Split System” – outdoor unit (condenser) and indoor unit (evaporator coil) Compressor  changes gaseous refrigerant to high pressure gas Refrigerant cools and changes into a high temp gas - PowerPoint PPT Presentation

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Page 1: Geothermal Heating / Geothermal Heat Pumps

Geothermal Heating / Geothermal Heat Pumps

Allie Paccadolmi

Page 2: Geothermal Heating / Geothermal Heat Pumps

How They Work“Split System” – outdoor unit (condenser)

and indoor unit (evaporator coil)Compressor changes gaseous

refrigerant to high pressure gasRefrigerant cools and changes into a high

temp gasLiquid refrigerant expands and turns into

gas – gas then absorbs heat from circulating air

Page 3: Geothermal Heating / Geothermal Heat Pumps
Page 4: Geothermal Heating / Geothermal Heat Pumps

AdvantagesTwice as efficient as the top-rated air

conditionersEnergy costs are 30-70% lowerReduces greenhouse gas emissions

equivalent to planting 750 trees

Page 5: Geothermal Heating / Geothermal Heat Pumps

DisadvantagesInitial cost is high two to three times higher

than a conventional heating/cooling systemOpen-loop systems – bring in water from

outside, can lead to clogging, mineral deposits, or corrosion of pipes

Page 6: Geothermal Heating / Geothermal Heat Pumps

Impact on the Environment?Reduces greenhouse gas emissions

5.9 million CO2 emissions cut 1.6 million C emissions cut

Page 7: Geothermal Heating / Geothermal Heat Pumps

Compared to other Energy SourcesLasts longer – abt 50 years longerNo gas lines – no potential for leakage or fire

Page 8: Geothermal Heating / Geothermal Heat Pumps

RestrictionsOpen-loop systems: need a large supply of

clean water to be most efficientLimits use in coastal, lake, and river areas

Page 9: Geothermal Heating / Geothermal Heat Pumps

FactsTakes only 1 kW/hr for a geothermal heat

pump to produce nearly 12,000 Btu of cooling or heating. (To produce the same number of Btus, a standard heat pump consumes 2.2 kilowatt-hours.)

50% more efficient than the best gas furnaces

70% of energy used in a geothermal heat pump system is renewable energy from the ground