Re: [TRNSYS-users] MRT under solar radiation

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Subject: Re: [TRNSYS-users] MRT under solar radiation

From: Marion Hiller <Hiller@Transsolar.com>

Date: Tue, 16 Aug 2022 10:09:40 +0000

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Thread-topic: [TRNSYS-users] MRT under solar radiation

Hi Wirich,

in the standard release the comfort sensor is always fully shaded.
Within Transsolar, we do have a test version of an taking into account solar radiation incident transmitted by external windows on a comfort sensor.

It may become a feature of the next major release of TRNSYS.

Best regards,

marion

Transsolar Software Team

hotline@transsolar.com

Transsolar

Stuttgart | Munich | Paris | New York

Transsolar Energietechnik GmbH | Curiestrasse 2 | 70563 Stuttgart | Germany

CEO: Matthias Schuler, Thomas Auer, Stefan Holst, Dieter Schnelle

Registered at Amtsgericht Stuttgart HRB 23347 | USt-IdNr.: DE 152272639

Von: TRNSYS-users <trnsys-users-bounces@lists.onebuilding.org> Im Auftrag von ??????? ???? ???? via TRNSYS-users
Gesendet: Mittwoch, 27. Juli 2022 22:02
An: TRNSYS users mailing list at OneBuilding.org <trnsys-users@lists.onebuilding.org>
Cc: المهندس حيدر ناجي <hidar8837@gmail.com>
Betreff: Re: [TRNSYS-users] MRT under solar radiation

Yes, you can calculate the thermal comfort by adding the required parameters in the TRNBuild program, as shown in the picture

‫في الأربعاء، 27 يوليو 2022 في 4:55 م تمت كتابة ما يلي بواسطة ‪Freppel, Wirich via TRNSYS-users‏ <‪trnsys-users@lists.onebuilding.org‏>:

Hello,

I want to assess the thermal comfort under solar radiation in a building. The ASHRAE-55 standards proposes a method to calculate the Mean Radiant Temperature including the solar radiation.

I haven’t seen so far an add-on or a Type that performs this calculation. Given that all the information required (view factor, radiation heat flux, surface temperatures) are available in the building type, it should be easier to calculate it within the simulation instead of exporting all the data for a post-treatment.

Is it in mind to develop such an add-on or if no, could it be if the need is growing ?

Best regards

Wirich FREPPEL
Development engineer

COSMOS - Buildings Energy Performance & Daylighting Group

Cell: +33 637 053 174

Saint-Gobain Research Compiègne

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Follow-Ups:

Re: [TRNSYS-users] MRT under solar radiation
- From: "Freppel, Wirich" <Wirich.Freppel@saint-gobain.com>

References:

[TRNSYS-users] MRT under solar radiation
- From: "Freppel, Wirich" <Wirich.Freppel@saint-gobain.com>
Re: [TRNSYS-users] MRT under solar radiation
- From: المهندس حيدر ناجي <hidar8837@gmail.com>