Re: type 701

[David Bradley <bradley@xxxxxxxxxxxx>]

Jeroen,

  Perhaps my message from yesterday did not reach you... if you could send 
me your input file, I would be happy to look at it and see what is causing 
the parameter error that you are seeing.

> Can somebody send me a outputfile of the Basement conduction type 701 ? 
> and tell me the quantity and length of the nodes per direction he/she used 
> in the simulation.

there is an example of using Type701 in the \trnsys15\IISiBat3\Data\TESS 
Projects directory. If you don't have this file, please let me know and I 
will send you a copy of it.

I usually make the nodes of the near field grow as they get farther from 
the edge of the slab. With the basement, you start specifying node sizes at 
the corner of the near field, you proceed toward the basement, through the 
basement, and then through the opposite near field. If you had a 5m long 
basement, you might specify the node sizes for the length of the basement as:

3.2
1.6
0.8
0.4
0.2
0.1
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.1
0.2
0.4
0.8
1.6
3.2

you would then have to do the same in the basement width direction. In the 
basement depth direction, you start at the surface/near filed boundary, 
specify the node dimensions through the basement wall and then on into the 
near field below the basement. If your basement were 2m deep, this might be

0.5
0.5
0.5
0.5
0.1
0.2
0.4
0.8
1.6
3.2

> I always get the error :
>
> ***** ERROR *****        TRNSYS ERROR # 103
> UNIT   8 TYPE 701
> 38 PARAMETERS WERE SPECIFIED, 60 ARE REQUIRED
> CHECK COMPONENT CONFIGURATION
>
> I don't know which parameters I'm missing, but it's maybe solved by 
> choosing the type 701 with input file.
> Problem is that I don't have such a file if I can't create one first.

the Type701 input file contains soil node temperatures for the entire near 
field - it is used when you want a preconditioned near field so that you 
can make a perhaps better assumption than starting the entire near field at 
a single temperature. We usually run a Type701 simulation out to five 
years, creating an output file, then use this "steady state" ground 
temperature file as a starting point for all of our other simulations. I do 
not think that the file will help you with the incorrect number of 
parameters error. The easiest way to create the input file is to run 
Type701 and create an output file. You can then use the output file as your 
Type701 input file the next time you run the simulation.

Kind regards,
  David


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Thermal Energy System Specialists (TESS)
David BRADLEY                           2916 Marketplace Drive - Suite 104
Partner                                        Madison, WI 53719
Phone: (608) 274-2577 USA
Fax: (608) 278-1475
E-mail: bradley@xxxxxxxxxxxx
Web Pages:  http://www.tess-inc.com     and      http://www.trnsys.com

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