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 Post subject: Tarray vs TArrWtd - In PVsyst v 6.79PostPosted: Mon Jun 17, 2019 12:34 pm

Joined: Tue Apr 26, 2016 8:33 am
Posts: 14
Hi,

Pl explain the difference between the following parameters under “custom table” option in detailed results tab
Tarray – Average module temperature during running
TArrWtd – Module temperature weighted by Globinc

Both includes incident radiation effect right?

Thank you

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 Post subject: Re: Tarray vs TArrWtd - In PVsyst v 6.79PostPosted: Wed Jul 24, 2019 12:58 pm

Joined: Wed Jul 24, 2019 12:09 pm
Posts: 1
Hello,

I have also a question related to Tarray, is it similar to the long-term mean module temperature (this value is requested by the consultant on a project that I'm working on) or is it something else in PVSyst? and how can we obtain the simulation result for this value?

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 Post subject: Re: Tarray vs TArrWtd - In PVsyst v 6.79PostPosted: Thu Aug 29, 2019 11:05 pm

Joined: Mon Apr 16, 2012 7:29 pm
Posts: 1680
TArray and TArrWtd are based on the same TArray hourly data.

Only the way of averaging these data is different:
- TArray is a simple average of all values when the system is working.
- TArrWtd is an average weighted by the irradiance: TArrWtd = Sumh (TArray * GlobInc) / Sumh (GlobInc) where Sumh = sum on hours

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