Pump heating hot water radiator heater

Parameter list:

Test conditions: water source side water inlet temp is 15℃,initial temp of hot water is 15℃,terminal temp is 55℃.

Ground source heat pump installation methods 

Horizontal loops

Pipes are laid horizontally in trenches. The depth of the trenches will vary according to the design and soil condition, but is usually 1.2 to 2m deep to assure year round heat source constant temp. Horizontal loops require much more surface area than vertical loops.

Trenches will need 50-80 metres of pipe per kilowatt (kW), with at least 5 metre distance between trenches with coils.

Note, however, this will depend on a number of factors, including ground conditions.

Vertical loops
Most commercial and institutional projects using ground source heat pumps use ‘vertical loop’ systems, which consists of pipe inserted into vertical bore holes, less space is required.

It dig into the ground, normally around 90 metres deep. It is common to have two bore holes to supply one home. The holes are roughly 200mm wide and must be kept at least eight metres apart from each other.

Slinky coils
“Slinky” is a variation of ‘Horizontal loop’. Slinky coils are flattened coils of overlapping piping, which are spread out and laid either horizontally or vertically. Their ability to focus the area of heat transfer into small volume, it reduces the length of the trenches, so reduced land area may need. A 10m long trench laid with a ‘Slinky’ coil will typically supply 1kW of heating load.