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[EnergyPlus_Support] Re: Convergence problem
- To: EnergyPlus_Support@xxxxxxxxxxxxxxx
- Subject: [EnergyPlus_Support] Re: Convergence problem
- From: "Junghyon" <noul123@xxxxxxxxx>
- Date: Thu, 15 Apr 2010 22:07:05 -0000
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- Delivery-date: Thu, 15 Apr 2010 16:11:59 -0600
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That problem happens during warmup period. Maybe, the construction of your building is too heavy and thick to use CTFs.
If you have problem to solve this warning, use other numerical
scheme...it means that if you select ConductionFiniteDifference as HeatbalanceAlgorithm instead of ConductionTransferFunction, you can
avoid this problem.
--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Sotiris Papantoniou" <sotos.enveng@...> wrote:
>
> Hello list,
>
>
>
> I am having problem with a specific simulation and a get the following
> message:
>
>
>
> ** Warning ** Inside surface heat balance did not converge with Max Temp
> Difference [C] =2.269 vs Max Allowed Temp Diff [C] =2.000E-003
>
> ** ~~~ ** Occurrence info=Souda/Khania - - MN6 WMO#=167460, 04/07
> 18:40 - 18:41
>
>
>
> Timestep is set at 6.
>
>
>
> When I change the timestep into 4 I have no problem, but I have to get
> results every 10 min.
>
>
>
> How can I overcome this problem???
>
>
>
> Thank you
>
>
>
> Sotiris
>
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