Renewable source of energy
I
n the past 15 years science has brought to our world one of the efficient and
valuable sources of renewable energy called ground source heat pumps. It
will allow you to heat your home with energy from the ground. This kind of
heating system was under research for many decades and has finally proved itself as
economical and reliable.
The idea of ground source
heating is to use heat from
different layers of ground,
because the heat which is
accumulated either by solar
energy or heat from the earth’s
core is gradually transferred
towards the earth surface. A
ground source heat pump
circulates a mixture of water
and antifreeze around a loop
of pipe – called a ground loop
– which is buried in your
garden. Heat from the ground
is absorbed into the fluid and
then passes through a heat
exchanger into the heat pump.
The ground stays at a fairly
constant temperature under
the surface, so the heat pump
can be used throughout the
year – even in the middle of
winter.
The system requires a high
level
of
initial
financial
investment but it will quickly
pay itself off over a period of
time.
Currently there are two types
of ground source of heating.
Firstly I would like to tell you
about the horizontal type
which is ideal for properties
with big plots and involves a
lot of digging of trenches. In
contrast the vertical type,
which suits properties with
limited size of the plots, will
require
drilling
boreholes
minimum 35 meters and
downwards. The deeper the
borehole then the more heat it
will generate.
1.