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Geo-Xergy? What’s that?. . . .
Ge-o-ther-mal:[jee-oh-ther-muhl] - adjective - pertaining to the heat of the earth
Ex-er-gy: [eks-er-jee] - noun - Exergy expresses the quality of an energy source and quantifies the useful work that
may be done by a certain quantity of energy.
Combining geothermal heating and cooling with the best use of available energy can create
an integrated, efficient and cost-effective solution for your project while helping you meet your environmental goals.
The "exergy" content required to satisfy the demands for
heating and cooling of buildings is very low, since a room temperature of
20°C (68°F) is fairly close to the ambient conditions. Nevertheless, high quality
energy sources like fossil fuels are commonly used to satisfy these small
demands for exergy.
Our mission is to strive to use energy as
efficiently as possible by designing energy systems that can be operated
with near-ambient temperature thermal energy sources and sinks.
Geothermal heat pumps make very efficient use of electrical energy...
transferring stored energy from the earth to your application or transferring energy from your
application to the earth.
Heat pumps, by their very nature, must reject heat while they provide
cooling or refrigeration. In some buildings it’s possible to use the heat
at the same time the refrigeration is being provided. An ice rink is a great example
of this: making ice while heating the swimming pool next door. Another
example would be heating the water for your shower while cooling your home.
Many times it’s not possible to make use of the refrigeration
while you need heat, or use the heat when the cooling is needed. Thermal
energy storage allows us to use it later - sort of like saving it in the
bank. For example, an integrated geothermal ice storage system in the
Heart Doctor’s Building in Rapid City, SD builds ice in a tank buried
outside the building, using the ice as a heat source for the building. The
next day the ice formed during the previous night provides much of the cooling for
the occupants, computers, lights and solar gains. Tomorrow’s air
conditioning heats the building tonight.
It’s all about making the best possible use of the available energy.
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