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Re: [TRNSYS-users] Two boreholes and one heat pump installation



Matthieu,
  You are correct that you can have only one instance of Type557 in a project. We have a Type1557 that I can send you; it is simply a copy of Type557 but renumbered. This will allow you to define two bore "fields" but keep in mind that there will be no thermal interaction between the two bores apart from the impact of the fluid passing through the pipes. In other words the bores won't know of each others' existence.  Please simply send me the contents of your user17.id file (please don't copy the whole list!) and I'll get you the additional files needed.
 
  As to your other question; the data file is not specific to one or another heatpump. It is quite generic and can be used to model the performance of any number of heat pumps and of heat pump sizes. If you have a specific heat pump in mind then I would recommend that you go the manufacturer's website and look for the performance data specific to that machine. Once you normalize its data you will probably find that the data file looks quite similar to the generic file.
Kind regards,
 David


On 4/9/2014 09:08, Matthieu Saint-Ellier (215419) wrote:
Dear TRNSYS users and support team,

I am dealing with a project containing a water-water heat pump and two U-tubes boreholes (Vertical ground heat exchangers).

The objective of this project is to extract energy from one of the borehole and try to store it in the other one thanks to the heat pump in order to use this energy in cold season for instance.

I would like to simulate this installation in an easy way on TRNSYS software.

In the first place, my problem is that on TRNSYS you can only have one borehole (Vertical ground heat exchanger) per project. However, in my model I would need two of these.
Therefore, I would like to know if there is any way to solve this problem or otherwise, which components of the TRNSYS library could be used to simulate the storage of energy in a borehole.

In the second place, the refrigerant of the heat pump I use is the 407C. But is seems that the attached file WWHP_Heating-Normalized.dat located in .\Tess Models\SampleCatalogData\Water-to-WaterHeatPump\Normalized only contains datas about the R134a refrigerant. I woud like to know how we can deal with other refrigerant.

Thank you very much.

Regards.


--

Matthieu SAINT-ELLIER

00 33 6 37 97 00 91
VIA University College
Horsens
Denmark



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David BRADLEY
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Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
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