Triangle Consulting Engineers Ltd, Four Seasons House, Astley Way,
Leeds, LS26 8XT
technologies - ground source heat pumps
the heat pump operates by utilising a simple refrigeration cycle.
by a small input of electrical energy it is possible to raise the temperature of
the source heat up to that required for space heating, or utilise this to
source heatpump is both environmentally friendly and very energy
a ground source system comprises of two main components the
ground loop, a series of bore holes or trenches containing pipe work and a
reversable heat pump.
the pipework in the ground, in which a brine is
circulated, recovers the natural low grade heat from the ground and transfers
this heat into the heat pump.
two main groups of ground source heat pumps with variants in each:
somtimes called 'slinkies' are buried at a depth of 1-2m in trenches and
approximate length of trench containing the coils of pipe is 100-500m.
these are best suited to domestic or small commercial
vertical collectors provided by means of 100-200mm
diameter boreholes being drilled down to around 100m, the quantity being
dependant on ground conditions and the amount of heat required
pipework of the collector is then inserted into the bores, at the end of this
pipework, a specially designed u-bend returns the circulating brine back to the
a larger capacity can be achieved through this type of ground