Thank you for your suggestion. I understand
the idea to have a lump capacitance to represent the zone and
then control its temperature. However, I only know the type
690 which input refers to an air flow rate. Is there a
corresponding type to use in a water-water heat pump, so with
a water flow rate?
Thank you again.
kind regards,
Jacopo
Jacopo,
This is a little bit tricky; the problem is that the loads
you have are presumably instantaneous heating and cooling
loads. If your delivery device were something without a lot of
thermal mass (like zonal heat pumps or some fan coils) then I
would recommend that you impose the loads directly onto the
liquid stream. However, the radiant floor has a lot of thermal
mass of its own. I think the best approach would be to impose
your loads on a lumped capacitance that is tuned to mimic the
zone. Then you can define a radiant floor using Type653 in
order to control the temperature of the lumped capacitance
that has your original building loads imposed upon it.
kind regards,
David
On 05/16/2022
09:16, Jacopo Valente via TRNSYS-users wrote:
Dear trnsys users,
I’m simulating
a ground water source heat pump for residential
conditioning system. I have the hourly load profile of the
building and i’m not using the type56. However my system
has radiant floor as emmiter and i see that it’s possible
to use type653 only with building type56. I’m looking for a way to
simulate this kind of implant, i try with type 690 but i’m
not sure it’s right for a water system. Any suggestions to
simulate my implant without type56?
Thank you every all
Best regards,
Jacopo Valente
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David BRADLEY
Principal
Thermal Energy System Specialists, LLC
3 North Pinckney Street - suite 202
Madison, WI 53703 USA
P:+1.608.274.2577
d.bradley@tess-inc.com
http://www.tess-inc.com
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