Sw

English translation: Sw / G-value / SF (Solar Factor)

17:55 Sep 7, 2020
French to English translations [PRO]
Tech/Engineering - Construction / Civil Engineering / Thermal efficiency of windows
French term or phrase: Sw
This abbreviation relates to the thermal efficiency of windows.

The full sentence refers to documents that have to be provided when applying for a grant for double glazing:

Une notice technique contenant les coefficients (Uw, Sw) ou Ug.

I have found Uw and Ug, but I cannot find the equivalent of Sw. It is something to do with solar heat gain, I think.

I would be grateful for your suggestions.
Jane Golding
United Kingdom
Local time: 06:43
English translation:Sw / G-value / SF (Solar Factor)
Explanation:
https://www.e-rt2012.fr/coefficients-caracteristant-une-fene...
"Le facteur solaire, défini par les coefficients Sw ou FS, est un nombre sans unité qui définit la capacité de votre fenêtre à transmettre la chaleur d’origine solaire à l’intérieur de votre local. Ainsi, plus le coefficient Sw est élevé, plus votre fenêtre laissera passer l’énergie solaire."

Also called the G-value.

https://en.wikipedia.org/wiki/Solar_gain#G-Value
"G-value (sometimes also called a Solar Factor or Total Solar Energy Transmittance) is the coefficient commonly used in Europe to measure the solar energy transmittance of windows. Despite having minor differences in modeling standards compared to the SHGC, the two values are effectively the same. A g-value of 1.0 represents full transmittance of all solar radiation while 0.0 represents a window with no solar energy transmittance. In practice though, most g-values will range between 0.2 and 0.7, with solar control glazing having a g-value of less than 0.5."
Selected response from:

B D Finch
France
Local time: 07:43
Grading comment
Thank you very much.
4 KudoZ points were awarded for this answer



Summary of answers provided
4 +3Sw / G-value / SF (Solar Factor)
B D Finch


Discussion entries: 1





  

Answers


49 mins   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +3
Sw / G-value / SF (Solar Factor)


Explanation:
https://www.e-rt2012.fr/coefficients-caracteristant-une-fene...
"Le facteur solaire, défini par les coefficients Sw ou FS, est un nombre sans unité qui définit la capacité de votre fenêtre à transmettre la chaleur d’origine solaire à l’intérieur de votre local. Ainsi, plus le coefficient Sw est élevé, plus votre fenêtre laissera passer l’énergie solaire."

Also called the G-value.

https://en.wikipedia.org/wiki/Solar_gain#G-Value
"G-value (sometimes also called a Solar Factor or Total Solar Energy Transmittance) is the coefficient commonly used in Europe to measure the solar energy transmittance of windows. Despite having minor differences in modeling standards compared to the SHGC, the two values are effectively the same. A g-value of 1.0 represents full transmittance of all solar radiation while 0.0 represents a window with no solar energy transmittance. In practice though, most g-values will range between 0.2 and 0.7, with solar control glazing having a g-value of less than 0.5."

B D Finch
France
Local time: 07:43
Specializes in field
Native speaker of: English
PRO pts in category: 915
Grading comment
Thank you very much.
Notes to answerer
Asker: Thank you very much for your help. This seems to be correct.


Peer comments on this answer (and responses from the answerer)
agree  Suzie Withers
1 min
  -> Thanks Suzie

agree  Johannes Gleim: Pour compléter les références j'ajoute la page Wikipedia en français : https://fr.m.wikipedia.org/wiki/Facteur_solaire
11 mins
  -> Thanks Johannes

agree  Yvonne Gallagher
15 hrs
  -> Thanks Yvonne
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