[TRNSYS-users] type 42c

[David Bradley]

Pablo,
   Type42 is a very generic model for reading the performance data for any 
kind of equipment that you want. The restrictions are that the performance 
of your equipment can depend on 1, 2 or 3 independent variable conditions 
and that Type42 can return up to 5 different performance measures. Examples 
of independent variable conditions in the case of a heat pump might be 
outdoor dry bulb temperature, indoor dry bulb temperature, and indoor wet 
bulb temperature. Examples of performance measures might be heating 
capacity, cooling capacity, and power draw. I do not know what data was 
available in perform.dat but I am afraid that file has been lost a long 
time ago. It is not too much trouble to make new data files using 
information from manufacturer's catalogs and in fact, if you have the TESS 
HVAC Library, there is a folder called \Trnsys16\Tesss 
Models\SampleCatalogData\ that contains some examples. I would send an 
example but the heat pumps in the TESS HVAC library read heating and 
cooling data from separate files so it would be a little hard to use Type42 
to read and use those files directly without the corresponding Type.
Kind regards,
  David



At 21:03 6/10/2006, Pablo Est Poblete Giacaman wrote:
>Dear All:
>
>         My name is Pablo Esteban Poblete, I´m a  Mechanical Engineering
>student at Universidad de Concepción, Chile. I´m working with
>16.00.0036 Trnsys version trying to modeling an air to air heat
>pump. I´ve also tried to use the type 42c in HVAC/Conditioning
>Equipment.
>
>The problem is that I need a performance file of the heat pump. The type
>42c’s description says that the file which contains the performance data
>is /TRNWIN/PERFORM.DAT and I don´t have any folder TRNWIN nor any file
>PERFORM.DAT, hence I don´t  know neither how is the file nor which the
>format is.
>The description of the Type 42c says there are some examples of a heat
>pump, but I haven’t been able to find them.
>
>Am I working with the wrong type to model an air to air heat pump? Which
>is the best type in this version to do what I want to do? I just need a
>simple model. I would appreciate it if you could help me.
>
>Thanks in advance
>
>Regards,
>
>Pablo Esteban Poblete
>Universidad de Concepción
>Chile
>
>
>_______________________________________________
>TRNSYS-users mailing list
>TRNSYS-users at engr.wisc.edu
>https://www.cae.wisc.edu/mailman/listinfo/trnsys-users

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Thermal Energy System Specialists (TESS), LLC
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Partner                                        Madison, WI 53719
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