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Commercial Services
Geothermal Systems
require careful design and installation. MENA Geothermals team of
certified engineers offer HVAC and geothermal services that include
ground loop design and installation, ground thermal
conductivity/diffusivity testing, load calculations, and mechanical
systems designs.
Using the most advanced equipment, software, and design methods,
MENA Geothermal engineers are dedicated to providing thorough
analysis and designs to meet your commercial requirements, from
thermal conductivity testing and data collection to full geothermal
ground loop design
How to Utilize Geothermal Commercial Energy Systems
Closed-loop systems circulate a water-based solution through a "loop
system " of small-diameter, high-density polyethylene underground
pipes. Closed-loop systems can be installed horizontally, vertically
or in a pond. Open-loop systems use an existing water well or
surface water. Regardless of whether the system is open or closed,
heat is transferred to or from the structure to provide year-round
comfort, no matter what the outdoor temperature is.
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Boiler-Cooler Systems
Typically, a boiler is employed to maintain closed loop
temperatures above 60°F and a cooling tower to maintain
loop temperatures below 90°F. These systems are
applicable in medium to large buildings regardless of
whether the load is heating or cooling dominated. |
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Vertical
Loops
The ideal choice when available land surface is limited.
Well drilling equipment is used to bore small-diameter
holes from 100 to 400 feet deep. |
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Pond (Lake) Loops
Very economical to install when a large body of water is available. Coils of
pipe are simply placed on the bottom of the pond or lake. |
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Ground
Water Systems
In ideal conditions, an open-loop application can be the
most economical type of geothermal system - utilizing
well water, lake, ocean or other water source as a
direct energy source. |
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| How does a geothermal system work? |
Throughout the year, outdoor temperatures fluctuate
with the changing seasons. However, underground temperatures do not. In
fact, about four to six feet below the earth's surface, temperatures
remain relatively constant year-round. A geothermal system, which
consists of an indoor unit and a buried earth loop, capitalizes on these
constant temperatures.
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| How long is the
payback period for your geothermal heat pump system? |
To figure this accurately, you must know
how much per year you'll save in energy costs with a geothermal system
and the difference in costs between it and the alternative heating
system and central air conditioner. To calculate your return on
investment (payback in number of years), divide the annual savings into
the additional cost. When you install a geothermal system in a new home,
the monthly savings in operating costs will generally offset the
additional monthly cost in the mortgage, resulting in a monthly positive
cash flow immediately. Keep in mind that energy savings is only one of
the many benefits you receive from a geothermal system.
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| What types of loops
are available? |
| There are two main types: open and
closed. The next two sections will give you specifics about each.
Learn More |
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