[TRNSYS-users] Overwriting Weather Data

[David BRADLEY]

Karim,

   I am afraid I am not familiar with either of those factors. The 
cloudiness factor is a value from 0 to 1 that tries to estimate how 
overcast the sky is so as to do a better job of splitting up the total 
radiation into a beam component and a diffuse component. Obviously a 
haziness and a scatter factor are related to the cloudiness but I am 
afraid I do not know specifically in what way. Perhaps there are other 
users who have some experience? If not perhaps contacting the Meteonorm 
people might lead to a suggestion.

kind regards,

  David


On 05/23/2022 07:25, e1241927 wrote:
> On 2022-05-22 17:30, David BRADLEY wrote:
>> Karim,
>>
>>   I would steer you towards using Type9 to read the data file and
>> Type16 to process whatever solar radiation you might need.
>>
>> kind regards,
>>
>>  David
>> On 05/20/2022 08:18, e1241927 via TRNSYS-users wrote:
>>
>>> Dear Trnsys users,
>>> We are applying for an energy certificate, which needs a thermal
>>> simulation for a building with daily outdoor temperatures ranging
>>> between -8°C and -10°C and the solar radiation should be assigned
>>> certain attributes. While the location is in Vienna, we don't really
>>> know how to overwrite the data in the tm2 weather file of Vienna in
>>> certain days ? I tried to explore types 54, 99 and 109, but I
>>> couldn't reach anything. Thank you in advance.
>>>
>>> Best regards
>>> Karim Rezk, MSc.
>>> _______________________________________________
>>> TRNSYS-users mailing list
>>> TRNSYS-users at lists.onebuilding.org
>>>
>> http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org
>>
>> -- 
>> ***************************
>> David BRADLEY
>> Principal
>> Thermal Energy System Specialists, LLC
>> 3 North Pinckney Street - suite 202
>> Madison, WI  53703 USA
>>
>> P:+1.608.274.2577
>> d.bradley at tess-inc.com
>>
>> http://www.tess-inc.com
>> http://www.trnsys.com
> Hello David,
> Thank you very much for your reply. Actually the sky radiation 
> settings I need to edit are: Haziness factor (Linke factor), which has 
> a range from 3 to 40, And Scatter factor (Reitz factor), which has a 
> range from 0 to 1. I found only Cloudiness in the documentation of 
> components in Type69. Do you know which input in which Type is 
> suitable for the mentioned factors ?
> Best regards
> Karim

-- 
***************************
David BRADLEY
Principal
Thermal Energy System Specialists, LLC
3 North Pinckney Street - suite 202
Madison, WI  53703 USA

P:+1.608.274.2577
d.bradley at tess-inc.com

http://www.tess-inc.com
http://www.trnsys.com
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