Application of Directional Drilling in the Ground Source Heat Pump industry...

GSHP technology is a cheap source of energy that is becoming more and more state of the art.The standard technology to exploit geothermal energy is based on vertically orientated boreholes. This is expensive, presupposes a well trained drilling team and very often causes damage to land and gardens. It’s therefore not surprising that drilling cost regularly represent more than 50 % of the entire investment, hindering potential customers from investing in geothermal heating systems.

Traditionally we have used the Horizontal Directional Drilling (HDD) construction method to install pipelines beneath areas where conventional open trench or other construction techniques may cause undesirable surface disturbance. Thus is a proven technology which can be easily transferred to the GSHP industry for the instillation of the ground loop in many varied applications.

The other traditional method of installing the ground loop is by trenching, laying coiled pipe and backfilling. This method is only suitable if there are no obstructions; and presents the other problem of introducing air into the ground decreasing thermal conductivity.

  BOREHOLE METHOD AND TRENCHING METHOD

More information about Heat Pump Ground Loop installation

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