Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Geothermal_heat_pump> ?p ?o }
- Geothermal_heat_pump abstract "A geothermal heat pump or ground source heat pump (GSHP) is a central heating and/or cooling system that transfers heat to or from the ground.It uses the earth as a heat source (in the winter) or a heat sink (in the summer). This design takes advantage of the moderate temperatures in the ground to boost efficiency and reduce the operational costs of heating and cooling systems, and may be combined with solar heating to form a geosolar system with even greater efficiency. Ground source heat pumps are also known as \"geothermal heat pumps\" although, strictly, the heat does not come primarily from the centre of the Earth, but from the Sun. They are also known by other names, including geoexchange, earth-coupled, earth energy systems. The engineering and scientific communities prefer the terms \"geoexchange\" or \"ground source heat pumps\" to avoid confusion with traditional geothermal power, which uses a high temperature heat source to generate electricity. Ground source heat pumps harvest heat absorbed at the Earth's surface from solar energy. The temperature in the ground below 6 metres (20 ft) is roughly equal to the mean annual air temperature at that latitude at the surface.Depending on latitude, the temperature beneath the upper 6 metres (20 ft) of Earth's surface maintains a nearly constant temperature between 10 and 16 °C (50 and 60 °F), if the temperature is undisturbed by the presence of a heat pump. Like a refrigerator or air conditioner, these systems use a heat pump to force the transfer of heat from the ground. Heat pumps can transfer heat from a cool space to a warm space, against the natural direction of flow, or they can enhance the natural flow of heat from a warm area to a cool one. The core of the heat pump is a loop of refrigerant pumped through a vapor-compression refrigeration cycle that moves heat. Air-source heat pumps are typically more efficient at heating than pure electric heaters, even when extracting heat from cold winter air, although efficiencies begin dropping significantly as outside air temperatures drop below 5 °C (41 °F). A ground source heat pump exchanges heat with the ground. This is much more energy-efficient because underground temperatures are more stable than air temperatures through the year. Seasonal variations drop off with depth and disappear below 7 metres (23 ft) to 12 metres (39 ft) due to thermal inertia. Like a cave, the shallow ground temperature is warmer than the air above during the winter and cooler than the air in the summer. A ground source heat pump extracts ground heat in the winter (for heating) and transfers heat back into the ground in the summer (for cooling). Some systems are designed to operate in one mode only, heating or cooling, depending on climate.Geothermal pump systems reach fairly high coefficient of performance (CoP), 3 to 6, on the coldest of winter nights, compared to 1.75–2.5 for air-source heat pumps on cool days. Ground source heat pumps (GSHPs) are among the most energy efficient technologies for providing HVAC and water heating.Setup costs are higher than for conventional systems, but the difference is usually returned in energy savings in 3 to 10 years, and even shorter lengths of time with federal, state and utility tax credits and incentives. Geothermal heat pump systems are reasonably warranted by manufacturers, and their working life is estimated at 25 years for inside components and 50+ years for the ground loop. As of 2004, there are over a million units installed worldwide providing 12 GW of thermal capacity, with an annual growth rate of 10%.".
- Geothermal_heat_pump thumbnail Geothermal_shilsholepointe.jpg?width=300.
- Geothermal_heat_pump wikiPageExternalLink mytopic=12640.
- Geothermal_heat_pump wikiPageExternalLink www.igshpa.okstate.edu.
- Geothermal_heat_pump wikiPageExternalLink geoexchange.org.
- Geothermal_heat_pump wikiPageExternalLink standards-research--technology.
- Geothermal_heat_pump wikiPageExternalLink www.geo-exchange.ca.
- Geothermal_heat_pump wikiPageExternalLink www.gshp.org.uk.
- Geothermal_heat_pump wikiPageExternalLink initialcost.
- Geothermal_heat_pump wikiPageID "7096967".
- Geothermal_heat_pump wikiPageLength "62601".
- Geothermal_heat_pump wikiPageOutDegree "123".
- Geothermal_heat_pump wikiPageRevisionID "708092602".
- Geothermal_heat_pump wikiPageWikiLink ASHRAE.
- Geothermal_heat_pump wikiPageWikiLink ASME.
- Geothermal_heat_pump wikiPageWikiLink Absorption_heat_pump.
- Geothermal_heat_pump wikiPageWikiLink Air_Conditioning,_Heating_and_Refrigeration_Institute.
- Geothermal_heat_pump wikiPageWikiLink Air_source_heat_pumps.
- Geothermal_heat_pump wikiPageWikiLink Annual_fuel_utilization_efficiency.
- Geothermal_heat_pump wikiPageWikiLink Aquifer.
- Geothermal_heat_pump wikiPageWikiLink Artesian_aquifer.
- Geothermal_heat_pump wikiPageWikiLink Baseboard.
- Geothermal_heat_pump wikiPageWikiLink Bentonite.
- Geothermal_heat_pump wikiPageWikiLink Borehole.
- Geothermal_heat_pump wikiPageWikiLink British_thermal_unit.
- Geothermal_heat_pump wikiPageWikiLink Carbon_dioxide.
- Geothermal_heat_pump wikiPageWikiLink Category:Building_engineering.
- Geothermal_heat_pump wikiPageWikiLink Category:Energy_conversion.
- Geothermal_heat_pump wikiPageWikiLink Category:Geothermal_energy.
- Geothermal_heat_pump wikiPageWikiLink Category:Heat_pumps.
- Geothermal_heat_pump wikiPageWikiLink Category:Sustainable_technologies.
- Geothermal_heat_pump wikiPageWikiLink Cathodic_protection.
- Geothermal_heat_pump wikiPageWikiLink Cave.
- Geothermal_heat_pump wikiPageWikiLink Central_heating.
- Geothermal_heat_pump wikiPageWikiLink Chlorodifluoromethane.
- Geothermal_heat_pump wikiPageWikiLink Chlorofluorocarbon.
- Geothermal_heat_pump wikiPageWikiLink Coefficient_of_performance.
- Geothermal_heat_pump wikiPageWikiLink Cogeneration.
- Geothermal_heat_pump wikiPageWikiLink Commonwealth_Building_(Portland,_Oregon).
- Geothermal_heat_pump wikiPageWikiLink Condensing_boiler.
- Geothermal_heat_pump wikiPageWikiLink Deep_water_source_cooling.
- Geothermal_heat_pump wikiPageWikiLink Denatured_alcohol.
- Geothermal_heat_pump wikiPageWikiLink Dew_point.
- Geothermal_heat_pump wikiPageWikiLink Direct_exchange_geothermal_heat_pump.
- Geothermal_heat_pump wikiPageWikiLink Directional_boring.
- Geothermal_heat_pump wikiPageWikiLink District_heating.
- Geothermal_heat_pump wikiPageWikiLink EcoCute.
- Geothermal_heat_pump wikiPageWikiLink Electric_heating.
- Geothermal_heat_pump wikiPageWikiLink Emission_intensity.
- Geothermal_heat_pump wikiPageWikiLink Energy_Star.
- Geothermal_heat_pump wikiPageWikiLink Fouling.
- Geothermal_heat_pump wikiPageWikiLink Frost_line.
- Geothermal_heat_pump wikiPageWikiLink Galvanic_anode.
- Geothermal_heat_pump wikiPageWikiLink Geothermal_electricity.
- Geothermal_heat_pump wikiPageWikiLink Green_building.
- Geothermal_heat_pump wikiPageWikiLink Ground-coupled_heat_exchanger.
- Geothermal_heat_pump wikiPageWikiLink Grout.
- Geothermal_heat_pump wikiPageWikiLink HSPF.
- Geothermal_heat_pump wikiPageWikiLink HVAC.
- Geothermal_heat_pump wikiPageWikiLink Heat_exchanger.
- Geothermal_heat_pump wikiPageWikiLink Heat_pump.
- Geothermal_heat_pump wikiPageWikiLink Heat_sink.
- Geothermal_heat_pump wikiPageWikiLink Heat_transfer.
- Geothermal_heat_pump wikiPageWikiLink Heating_oil.
- Geothermal_heat_pump wikiPageWikiLink High-density_polyethylene.
- Geothermal_heat_pump wikiPageWikiLink Hydronics.
- Geothermal_heat_pump wikiPageWikiLink Injection_well.
- Geothermal_heat_pump wikiPageWikiLink International_Ground_Source_Heat_Pump_Association.
- Geothermal_heat_pump wikiPageWikiLink International_Organization_for_Standardization.
- Geothermal_heat_pump wikiPageWikiLink Irrigation.
- Geothermal_heat_pump wikiPageWikiLink Limescale.
- Geothermal_heat_pump wikiPageWikiLink List_of_Historic_Mechanical_Engineering_Landmarks.
- Geothermal_heat_pump wikiPageWikiLink Methanol.
- Geothermal_heat_pump wikiPageWikiLink Natural_Resources_Canada.
- Geothermal_heat_pump wikiPageWikiLink Natural_building.
- Geothermal_heat_pump wikiPageWikiLink Natural_gas.
- Geothermal_heat_pump wikiPageWikiLink Nominal_Pipe_Size.
- Geothermal_heat_pump wikiPageWikiLink Office_of_Energy_Efficiency_and_Renewable_Energy.
- Geothermal_heat_pump wikiPageWikiLink Ozone_depletion.
- Geothermal_heat_pump wikiPageWikiLink Peter_von_Rittinger.
- Geothermal_heat_pump wikiPageWikiLink Polybutylene.
- Geothermal_heat_pump wikiPageWikiLink Polyethylene.
- Geothermal_heat_pump wikiPageWikiLink Propylene_glycol.
- Geothermal_heat_pump wikiPageWikiLink R-410A.
- Geothermal_heat_pump wikiPageWikiLink Radiant_heating.
- Geothermal_heat_pump wikiPageWikiLink Radiator.
- Geothermal_heat_pump wikiPageWikiLink Refrigerant.
- Geothermal_heat_pump wikiPageWikiLink Renewable_Heat_Incentive.
- Geothermal_heat_pump wikiPageWikiLink Renewable_energy.
- Geothermal_heat_pump wikiPageWikiLink Renewable_heat.
- Geothermal_heat_pump wikiPageWikiLink Return_on_investment.
- Geothermal_heat_pump wikiPageWikiLink Seasonal_energy_efficiency_ratio.
- Geothermal_heat_pump wikiPageWikiLink Seasonal_thermal_energy_storage.
- Geothermal_heat_pump wikiPageWikiLink Slinky.
- Geothermal_heat_pump wikiPageWikiLink Solar_air_conditioning.
- Geothermal_heat_pump wikiPageWikiLink Solar_combisystem.
- Geothermal_heat_pump wikiPageWikiLink Solar_thermal_collector.
- Geothermal_heat_pump wikiPageWikiLink Staufen_im_Breisgau.
- Geothermal_heat_pump wikiPageWikiLink Thermal_efficiency.
- Geothermal_heat_pump wikiPageWikiLink Thermosiphon.