Mathieu,
The biggest difference between Type460 and Type1267 is that
Type460 models tubes that contain air while Type1267 assumes that
the heat exchanger pipes are filled with liquid. Type1267 breaks
the ground up into nodes and then uses a finite difference method
to calculate the temperature of each node. It is very flexible in
terms of the geometries that you can set up and it will give you
an enormous amount of information about what the temperature
profile in the ground surrounding your building looks like. Its
downside is that it is not a fast model. It will slow your
simulation down significantly.
kind regards,
David
On 09/03/2019 21:14, Patin, Mathieu via
TRNSYS-users wrote:
Dear all,
I work on an
earth-to-air heat exchanger placed around the foundation of
a building. I am considering using the type 1267 for the
simulation of the exchanger. But there is hardly any
information about it online. Also, the institute where I
work already bought type 460 for previous works. I am
therefore trying to get more information before going
forward with a purchase.
Does anyone know how
their two performances compare and which would be best for
my case?
Thanks
Mathieu Patin
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David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
3 North Pinckney Street - suite 202
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d.bradley@tess-inc.com
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