ASHRAE handbook: HVAC applications. Review of analytical models for heat transfer by vertical ground heat exchangers (GHEs): A perspective of time and space scales, Applied Energy 2015; 151: 178-191. [citation needed], Before drilling, the underground geology needs to be understood, and drillers need to be prepared to seal the borehole, including preventing penetration of water between strata. This results in net thermal efficiencies greater than 300% as compared to radiant electric heat being 100% efficient. Appl Energy 2014; 136: 197-205. temperature beneath the upper 6 metres (20 ft) of Earth's surface, National Historic Mechanical Engineering Landmark, International Organization for Standardization, International Ground Source Heat Pump Association, Glossary of geothermal heating and cooling, Spiral ground heat exchangers for heat pump applications, "An Information Survival Kit for the Prospective Residential Geothermal Heat Pump Owner", "Mean Annual Air Temperature – MATT – Ground temperature – Renewable Energy – Interseasonal Heat Transfer – Solar Thermal Collectors – Ground Source Heat Pumps – Renewable Cooling", "Ground Temperatures as a Function of Location, Season, and Depth", "Groundwater temperature's measurement and significance - National Groundwater Association", "Geothermal Technologies Program: Geothermal Basics", "Strategic GHG reduction through the use of ground source heat pump technology", Influence of Undisturbed Ground Temperature and Geothermal Gradient on the Sizing of Borehole Heat Exchangers, Faculty of Mining, Geology and Petroleum Engineering, University of Zagreb, "Geothermal Technologies Program: Tennessee Energy Efficient Schools Initiative Ground Source Heat Pumps", "COLORADO RENEWABLE ENERGY SOCIETY – Geothermal Energy", "Geothermal (Ground Source) Heat Pumps, A World Overview", "Geothermal Heat Pumps, Four Plus Decades of Experience", "Geothermal – The Energy Under Our Feet: Geothermal Resources Estimates for the United States", "GSHC Viability and Design – Carbon Zero Consulting", "Environmental Technology Verification Report", "Ground Source Heat Pumps (Earth Energy Systems)", "Advances in modeling of ground source heat pump systems", "Seasonal pit heat storage: Cost benchmark of 30 EUR/m³", "Underground Thermal Energy Storage (UTES) - 4 PTES (Pit Thermal Energy Storage), 10 MB", "A Survey of Standing Column Well Installations in North America", "Schematic of similar system of aquifers with fans-regulation", "Capture, storage and release of Renewable Cooling", "AHRI Directory of water-to-air geothermal heat pumps", "Energy Star Program Requirements for Geothermal Heat PUmps", "Voluntary Reporting of Greenhouse Gases, Electricity Emission Factors", Spiegel.de report on recent geological changes, "DAMAGE TO THE HISTORIC TOWN OF STAUFEN (GERMANY) CAUSED By GEOTHERMAL DRILLING THROUGH ANHYDRITE-BEARING FORMATIONS", "Risikoorientierte Bewilligung von Erdwärmesonden", "Editors' message: The housing crisis from underground—damage to a historic town by geothermal drillings through anhydrite, Staufen, Germany", "Ground-Source Heat Pump Case Studies and Utility Programs", "OpenThermal.org analysis of geothermal incentive payments in the state of Maryland", "Indiana Residential Geothermal Heat Pump Rebate, Program Review", "Geothermal (Ground-Source) Heat Pumps: Market Status, Barriers to Adoption, and Actions to Overcome Barriers", "Energy Savers: Selecting and Installing a Geothermal Heat Pump System", "Ground-Source Heat Pump Project Analysis", "Geothermal heat pumps: alternative energy heating and cooling FAQs", "Benefits of a Geothermal Heat Pump System", Database of State Incentives for Renewables & Efficiency, "2010 to 2015 government policy: low carbon technologies", "White House Executive Order on Sustainability Includes Geothermal Heat Pumps", "Horizontal & Vertical Thermal Conductivity", Heating, ventilation, and air conditioning, High efficiency glandless circulating pump, https://en.wikipedia.org/w/index.php?title=Geothermal_heat_pump&oldid=978010189, Articles with unsourced statements from June 2018, Articles to be expanded from February 2010, Articles with unsourced statements from June 2015, Articles with unsourced statements from March 2011, Articles with unsourced statements from January 2013, Creative Commons Attribution-ShareAlike License, HL = seasonal heat load ≈ 80 GJ/yr for a modern detached house in the northern US, FI = emissions intensity of fuel = 50 kg(CO, COP = heat pump coefficient of performance ≈ 3.2 seasonally adjusted for northern US heat pump, EI = emissions intensity of electricity ≈ 200–800 ton(CO, This page was last edited on 12 September 2020, at 09:44. {\displaystyle q_{l}=[T_{f}(t)-T_{0}]/R(t)}. In principle, a geothermal heat pump functions like a conventional heat pump, by using high-pressure refrigerant to capture and move heat between indoors and out.
× ASHRAE defines the term ground-coupled heat pump to encompass closed loop and direct exchange systems, while excluding open loops. The Dandelion Energy home geothermal system replaces your home’s existing air conditioning and heating equipment with a powerful heat pump and safe, underground pipes that move heat between the earth and your home.
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