RE: Question about type 81 (Borehole model (Dr. P. Pahud)

["rost8" <rost8@xxxxxxxxxx>]

Jong,
the Error range check occurs usually if you have unfortunatly a bad component order.
That means, it is not direct caused by the component you useed. Instead it is the range of the components.
For example: An Output type in the component order should be listed at the end of the list. This is, because there is no other unit which requires a result of the Output type. So they can go last!
Equation Modes are better at the beginning of the list, but keep them in the right order. Do not let TRNSYS calculate with a variable that you do not provieded before. This will slow down the speed or occur the range check error.
You find the order of components on the global infos.

regards,

Henrik
Korea - SEOUL






--- On Fri 10/11, Jong, M.J.M. < jong@ecn.nl > wrote:
From: Jong, M.J.M. [mailto: jong@ecn.nl]
To: trnsys@relay.doit.wisc.edu
Date: Fri, 11 Oct 2002 10:18:09 +0200
Subject: Question about type 81 (Borehole model (Dr. P. Pahud)

> Dear Trnsys-users,
> 
> At this moment I am simulating a house with a heat pump that is connected
> to
> a ground heat exchanger. For the ground heat exchanger, I use type 81,
> called "The Superposition Borehole Model" by Dr. D. Pahud, Dr.
> A. Fromentin
> and J.C. Hadorn.
> 
> I want to simulate a system with 3 ground heat exhangers with a lenght of
> 30
> m. each. The centre to centre distance between the heat exchangers is 10
> m.
> This model uses an input parameter file for configurating the borehole
> heat
> exchanger. Below this file is shown.
> 
> ******************************************************************
> 
> BODEMWARMTEWISSELAAR PVT BODEMREGENERATIE
> 2
> 1Q
> 0.1
> 7
> 4 0.01 2 0.03 3 0.04 2 0.16 2 0.31 2 0.62 2 1.25
> 2.4 2.5E6
> 0 FILE
> 10
> 10 0.0
> 0 FILE
> 1
> 3
> 28 2 0
> 0 -10 0
> 0 0 0
> 0 10 0
> 6
> 0
> 0
> 1
> 0D 365D1H
> 0D 365D
> 0D 30D 180D 365D
> 1
> 0D 3650D1H
> 2
> 1
> 0.001 1000 4.19E6 0.6
> 2300 2300
> 0.0102 0.0125 0.42
> 1.5 0.05 0.05 0.1
> 0
> END
> 
> ******************************************************************
> 
> The lines 0 -10 0
> 0 0 0
> 0 10 0
> are the coordinates of the boreholes. As you can see, I have 1 symmetry
> group, with 3 boreholes in the symmetry group. When I want to run my
> simulation, I get the message "Range check error".
> 
> When I modify my model to a model with 1 borehole, everything is OK. Does
> anybody know what I do wrong ?
> 
> With kind regards,
> 
> 
> Maurice Jong.
> 
> ============================================================================
> ======
> 
> Maurice Jong
> ECN - Energy research Centre of the Netherlands Department: Zon,
> Group DEGO
> P.O. Box 1 1755 ZG Petten Country: The
> Netherlands
> Telephone: +31 (0)224 564938 Fax: +31
> (0)224 568966
> E-mail: jong@ecn.nl Internet:
> http://www.ecn.nl/dego/main.html
> 
> ============================================================================
> ======
> 
> 

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