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Green Building: Sisters of St. Joseph
Residence, London, Ontario OPEN
PDF
Report: Global Warming Impacts of
Ground-Source Heat Pumps Compared to Other Heating and
Cooling Systems. OPEN
PDF
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Caneta Energy: Ground-Source Heat
Pump Design
Ground-Source Heat Pump Design
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Ground-source heat pumps are a down to earth solution to high energy
building costs. A ground-source heat pump uses the earth as the
source of heat in the winter, and the "sink" for heat
removed in the summer. Heat is removed from the earth by a liquid,
such as an antifreeze solution, which is pumped through pipes in
the ground. The heat pump upgrades the ground heat and transfers
it to indoor air. During summer months, the process is reversed:
heat is extracted from indoor air and transferred to the earth through
antifreeze solution via pipes. Click here
to see a diagram of how a ground-source heat pump works.
Ground-source heat pump (or geothermal)
systems use largely renewable energy and can significantly
reduce building energy requirements for space heating, cooling
and water heating in buildings. Typically, total building
energy savings of 25% or more can be achieved compared to
designs with more traditional HVAC systems. |
Caneta Energy works directly with your design team and familiarizes
them with the design of ground-source heat pump systems. Caneta
evaluates and oversees an investigation of the specific geologic
conditions under your site. We use sophisticated computer models
to predict the amount of ground heat exchanger needed. If necessary,
we work directly with mechanical engineers to prepare plans and
specifications for construction of the borefield.
Caneta has been involved in different aspects of ground-source
systems for over 15 years. We prepared Committee drafts of the first
CSA Standards for design and installation. As well, we authored
the first ASHRAE Design Manual in 1995 and developed the
GS2000™ ground heat exchanger design program about the same time. In 2006,
Caneta prepared training content for designers and installers for
the Canadian Geoexchange Coalition. We have extensive knowledge
of the technology and its application and can make it work for you.
In the past two years we have helped design five ground-source heat
pump systems in commercial/institutional buildings.
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