[TRNSYS-users] Type 15-6, short timestep, weather data generated by meteonorm for arbitrary longitude/latitude (Nikos Androulakis)

[Nikos Androulakis]

Shahen,
Thank you very much for your reply.
Kind regards,
Nick.

On 8/5/2014 3:51 PM, Shahen Fakhraldin wrote:
> Hi Nick,
>
> Last week, I posted a thread titled[Calculated horizontal beam 
> exceeded the provided total radiation ERROR]about similar warnings in 
> the type 15. Also, Ciarán Flynn posted a thread titled [Possible data 
> error in TM2 Weather File and circumventing solar radiation error 
> messages] about similar error.
>
> I changed the time step in the example [Begin] to 1 min and I got the 
> warning, as can be seen in the attached screenshot Fig a, while there 
> was no warning at time step 20 min.
>
> Also, I replaced type 15-6 to 15-2 with the same "tm2" file in the 
> example and I got the same warning.
>
> Then, I replaced the tm2 file by Miami, USA tm2 file and I got two 
> errors in the horizontal extraterrestrial radiation and the horizontal 
> beam radiation, as can be seen in Fig b.
>
>
> I thought that the problem in the type 15-6, exactly in the 
> processing of the horizontal radiations (beam, diffuse and global). 
> But, I got similar warnings when the time step was changed to 1 min in 
> the example [radiation processing] that uses type 9e and 16i, as in 
> the Fig c.
>
> I didn't try type 109 that was available in TRNSYS 16 and I don't know 
> that the TRNSYS 17 accepts that type.
>
> Kind regards,
> Shahen
>
>
>
> On Monday, August 4, 2014 9:25 PM, 
> "trnsys-users-request at lists.onebuilding.org" 
> <trnsys-users-request at lists.onebuilding.org> wrote:
>
>
>
> Today's Topics:
>
>   1. Type 15-6, short timestep, weather data generated by
> meteonorm for arbitrary longitude/latitude (Nikos Androulakis)
>
> Hello all,
>
>   I'm having some problems using weather data type 15-6 with short
> timesteps (e.g. one minute). I'm using two different meteonorm files for
> two different locations. One of them (GR-Thessaloniki-166220) is
> available in the lists of trnsys and the other one (GR-Megali Panagia)
> was generated using Meteonorm. When the time step is set to one hour
> there is no problem. On the other hand, when the timestep is set to one
> minute, there are warnings (calculated beam radiation exceeded maximum)
> only in the second case (Megali Panagia). I replaced type15-6 with
> type109 and there are no warnings in any of the four cases ( 1)long
> timestep-Thessaloniki,2) long timestep-Megali Panagia, 3)short
> timestep-Thessaloniki, 4) short timestep-Megali Panagia). I would like
> to ask the reason this is happening and if i can use, without having any
> doubts, type 109 with short timestep and using the external file
> generated for Megali Panagia.
> Thank you in advance.
>
> Kind regards,
> Nick Androulakis.
>
>
>
>
>
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