Sunday, February 3, 2008

Pipes for Geothermal Collector


Pipes for geothermal collector are very important part of heat pump system. For 100 meters of vertical geothermal collector that is inserted into drilled hole, we usually need 400 meters of strong pipes (2 pipe loops inserted in one hole). If we calculate the water pressure at the end of 100 meters collector (100 meters deep under the surface) we get 10 bars (1 bar / 10 meters). We must add another 2 bars to get optimal working conditions for the heat pump. That is way pipes must be strong and must stand at least 12 bars of pressure for 100 meters collector. We have used 16 bar pipes (32mm in diameter, 3 mm wall thickness, PE 100, SIST EN 12201) from Slovene (Europe) producer.

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