mesure solaire différentielle, mail à Werner
Posté : 31 janv. 2008, 12:49
Pour info et commentaires éventuels, ci-dessous le mail que je viens d'envoyer à Werner (une matinée de boulot pour l'écrire !)
Hello Werner,
From one year and half I am “working” very much on solar measurement with my La Crosse WS2300 and Wswin32 (in Vantage pro mode) with differential temperature system.
(solar sensor temperature is in a black box and all is in a glass box)
All description is here:
http://pagesperso-orange.fr/michel.mo/e ... alites.htm
If you don’t handerstand French, you can understand with pictures only:
For my settings for example here:
http://pagesperso-orange.fr/michel.mo/e ... swin32.htm
It works very well and it is very “fun” !
However I have some questions and some suggestions:
1/
Between sunrise and 10:30 (my setting) and between 15:30 (my setting) and sunset, all is very good and very sun sensitive: its perfect.
I understand you calculate %sunproz% using %curval[10]% (differential temperature) and %sunintenscur%, but I don’t understand exactly how you do.
If you explain me it will be better.
2/
Between 10:30 and 15:30 (my setting), I understand that %sunproz% is simply %curval[10]% (differential temperature) / value for 100% (or value for 100% - value for 0%).
But:
%curval[10]% (differential temperature) is very variable during the year:
here (with my box), in winter, max. is about 11°C and in summer max is about 23°C
And value for 100% is fixed.
Then %sunproz% is not good all the year.
Why you don’t correct that according the date of the year ?
It’s the same problem With “10:30” and “15:30”: this hours are very variable during the year
Why you don’t correct that according the real sunrise and sunset (with an offset) ?
I thank you very much for your answers.
Best regards and congratulations for Wswin32 !
Hello Werner,
From one year and half I am “working” very much on solar measurement with my La Crosse WS2300 and Wswin32 (in Vantage pro mode) with differential temperature system.
(solar sensor temperature is in a black box and all is in a glass box)
All description is here:
http://pagesperso-orange.fr/michel.mo/e ... alites.htm
If you don’t handerstand French, you can understand with pictures only:
For my settings for example here:
http://pagesperso-orange.fr/michel.mo/e ... swin32.htm
It works very well and it is very “fun” !
However I have some questions and some suggestions:
1/
Between sunrise and 10:30 (my setting) and between 15:30 (my setting) and sunset, all is very good and very sun sensitive: its perfect.
I understand you calculate %sunproz% using %curval[10]% (differential temperature) and %sunintenscur%, but I don’t understand exactly how you do.
If you explain me it will be better.
2/
Between 10:30 and 15:30 (my setting), I understand that %sunproz% is simply %curval[10]% (differential temperature) / value for 100% (or value for 100% - value for 0%).
But:
%curval[10]% (differential temperature) is very variable during the year:
here (with my box), in winter, max. is about 11°C and in summer max is about 23°C
And value for 100% is fixed.
Then %sunproz% is not good all the year.
Why you don’t correct that according the date of the year ?
It’s the same problem With “10:30” and “15:30”: this hours are very variable during the year
Why you don’t correct that according the real sunrise and sunset (with an offset) ?
I thank you very much for your answers.
Best regards and congratulations for Wswin32 !