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- Q1420440 subject Q6363880.
- Q1420440 subject Q6807883.
- Q1420440 subject Q7484961.
- Q1420440 abstract "A ground-coupled heat exchanger is an underground heat exchanger that can capture heat from and/or dissipate heat to the ground. They use the Earth's near constant subterranean temperature to warm or cool air or other fluids for residential, agricultural or industrial uses. If building air is blown through the heat exchanger for heat recovery ventilation, they are called earth tubes (also known as earth cooling tubes or earth warming tubes) in Europe or earth-air heat exchangers (EAHE or EAHX) in North America. These systems are known by several other names, including: air-to-soil heat exchanger, earth channels, earth canals, earth-air tunnel systems, ground tube heat exchanger, hypocausts, subsoil heat exchangers, thermal labyrinths, underground air pipes, and others.Earth tubes are often a viable and economical alternative or supplement to conventional central heating or air conditioning systems since there are no compressors, chemicals or burners and only blowers are required to move the air. These are used for either partial or full cooling and/or heating of facility ventilation air. Their use can help buildings meet Passive House standards or LEED certification.Earth-air heat exchangers have been used in agricultural facilities (animal buildings) and horticultural facilities (greenhouses) in the United States over the past several decades and have been used in conjunction with solar chimneys in hot arid areas for thousands of years, probably beginning in the Persian Empire. Implementation of these systems in Austria, Denmark, Germany, and India has become fairly common since the mid-1990s, and is slowly being adopted in North America.Ground-coupled heat exchanger may also use water or antifreeze as a heat transfer fluid, often in conjunction with a geothermal heat pump. See, for example downhole heat exchangers. The rest of this article deals primarily with earth-air heat exchangers or earth tubes.".
- Q1420440 thumbnail Passivhaus_section_en.jpg?width=300.
- Q1420440 wikiPageExternalLink earth-air-tubes.html.
- Q1420440 wikiPageExternalLink Earth%20Tubes2003-01-07GirjaSharan.pdf.
- Q1420440 wikiPageExternalLink mytopic=12460.
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- Q1420440 wikiPageWikiLink Q5300025.
- Q1420440 wikiPageWikiLink Q6363880.
- Q1420440 wikiPageWikiLink Q6807883.
- Q1420440 wikiPageWikiLink Q6865451.
- Q1420440 wikiPageWikiLink Q7312591.
- Q1420440 wikiPageWikiLink Q7484961.
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- Q1420440 wikiPageWikiLink Q902.
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- Q1420440 wikiPageWikiLink Q939134.
- Q1420440 comment "A ground-coupled heat exchanger is an underground heat exchanger that can capture heat from and/or dissipate heat to the ground. They use the Earth's near constant subterranean temperature to warm or cool air or other fluids for residential, agricultural or industrial uses.".
- Q1420440 label "Ground-coupled heat exchanger".
- Q1420440 depiction Passivhaus_section_en.jpg.