[TRNSYS-users] Unspecified error in Type 557b

[prasanth s]

Hello  Mr. Thornton,

thanks a lot for your reply. You are right, setting the number of
simulation years as 10 solves the problem in this case. But I was actually
doing a one-year simulation with parameter 28 as 1. The simulation was very
big and complicated. So, I just simplified the model to discuss this
problem. In actual model, parameterization of *Borehole Heat exchanger* is
same as that in the example. But real-time systems are connected to it (no
constant heat extraction. It depends on heat pump operation). I was doing
Parameter Studies, where I observed that this error occurs mostly if
simulation period is very long (which is now clear because of
parameter 28). But in certain parameter combinations, it occurs in the
first year itself (this also occurs in parameter combination stated in
example model). For example, this error doesn't occur if borehole spacing
is increased to 3. This means that there are also some other parameters or
factor causing this error. I couldn't find any find any similarities
between the parameter combinations in which I am encountering this error.
Let me know any other parameters or factors causes this error.

I will share if I find a solution.

Thanks in advance. Have a nice weekend.


Regards
Prasanth

On 26 April 2018 at 22:13, Jeff Thornton via TRNSYS-users <
trnsys-users at lists.onebuilding.org> wrote:

> Prasanth,
>
> Set the number of simulation years to 10 (Parameter 28).  You are hitting
> the mesh boundary limit by setting it to one year and then running a
> 10-year simulation.
>
> Jeff
>
> ---
> Jeff Thornton
> President - TESS LLC
> 22 N. Carroll Street, Madison WI USA 53703
> Office: (608) 274-2577  Fax: (608) 278-1475
> www.tess-inc.com
> E-Mail: thornton at tess-inc.com
>
>
> On 04/25/2018 7:53 am, Prasanth Subramani via TRNSYS-users wrote:
>
>> Hello TRNSYS user,
>>
>> I am using type 557b (Vertical Borehole Heat Exchanger) for my TRNSYS
>> simulation. I have encountered unspecified error between simulation, for
>> which the cause is unknown. Can someone help me in these regards? I have
>> seen that many people encountered this problem, but I couldn't find the
>> solution in the user forum. I also attached simple Simulation model with
>> constant heat extraction (10kW) from the soil. In this model, the error
>> occurs at 83426.164 hours. In case of more heat extraction, it occurs
>> earlier. For example (at 13225.5 hour 100kW heat extraction).
>> The error message is shown below.
>>
>> *** Fatal Error at time : 83426.166667
>> Generated by Unit : 40
>> Generated by Type : 557
>> TRNSYS Message 103 : The TRNSYS TYPE checking routine has found an
>> inconsistency in the specified component between the input file and the
>> information expected by the Type
>> Reported information: The component model has reported an unspecified
>> error. Please check the input file for possible sources of error.
>>
>> Can anyone explain to me why it happens or what is the solution? Thanks
>> in advance.
>>
>> Regards
>> Prasanth
>>
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