Question about schermi solari

[weather1967]

Hello all, i want to make a schermi solari for to do a test ,and i want if somebody knowes,how is diameter at plastic tube for the sensor and fan ??like this

http://forum.meteonetwork.it/attachm...1&d=1140379579

And it work fine ? at the summer time do not have more + temps ??

thank you

[SteveFP]

Hello all, i want to make a schermi solari for to do a test ,and i want if somebody knowes,how is diameter at plastic tube for the sensor and fan ??like this

http://forum.meteonetwork.it/attachm...1&d=1140379579

And it work fine ? at the summer time do not have more + temps ??

thank you

10 - 12 cm.

[weather1967]

Thank you Steve
Do you know if it work right the summer time ? maybe it show more + temps from the normal ??
Thank you again .

10 - 12 cm.

[dolmen]

And it work fine ? at the summer time do not have more + temps ??

thank you

It works GREAT, expecially in summertime.

The max temperatures measured into a fan-aspirated radiation shield are usually lower than those measured, by the same sensor, into a passive radiation shield.
Of course the plastic tube must be put into a standard radiation shield made by whites plates.

[weather1967]

Thank you Dolmen
You are very correct finnaly,i have a stevenson screen from wood and i had 1-1,5 c more temp more the summer ,but today i made a plastic tube with fan and i put it over the sensor like hat ,and i saw today 1,0 c down with it ,finally is work great thank you .

http://i18.servimg.com/u/f18/11/22/64/62/fan10.jpg

http://i18.servimg.com/u/f18/11/22/64/62/fan110.jpg

http://i18.servimg.com/u/f18/11/22/64/62/fan310.jpg

And all photos is here

http://www.geocities.com/meteoperisteri/Klovos.html

It works GREAT, expecially in summertime.

The max temperatures measured into a fan-aspirated radiation shield are usually lower than those measured, by the same sensor, into a passive radiation shield.
Of course the plastic tube must be put into a standard radiation shield made by whites plates.

[Conte]

Thank you Dolmen
You are very correct finnaly,i have a stevenson screen from wood and i had 1-1,5 c more temp more the summer ,but today i made a plastic tube with fan and i put it over the sensor like hat ,and i saw today 1,0 c down with it ,finally is work great thank you .

http://i18.servimg.com/u/f18/11/22/64/62/fan10.jpg

http://i18.servimg.com/u/f18/11/22/64/62/fan110.jpg

http://i18.servimg.com/u/f18/11/22/64/62/fan310.jpg

And all photos is here

http://www.geocities.com/meteoperisteri/Klovos.html

Look at here:

http://forum.meteonetwork.it/showthread.php?t=16789

[weather1967]

Οh Great link Conte,thank you very much .

Look at here:

http://forum.meteonetwork.it/showthread.php?t=16789

[weather1967]

Good morning again .
One question yet please .How long distance in cm must to have ,the fan with the top side of sensor

I see this photo and i see fan and sensor it must very near about 1-2 cm or no ?
http://forum.meteonetwork.it/attachm...0&d=1140377090

Thank you very much and best regards to beautiful Italy .

[Conte]

Good morning again .
One question yet please .How long distance in cm must to have ,the fan with the top side of sensor

I see this photo and i see fan and sensor it must very near about 1-2 cm or no ?
http://forum.meteonetwork.it/attachm...0&d=1140377090

Thank you very much and best regards to beautiful Italy .

It's no important the distance.
In my shield I have the real sensor side direct down, in front of air flow that entrance from grate.

[weather1967]

Thank you Conte
http://i18.servimg.com/u/f18/11/22/64/62/fan10.jpg
I understand and i do the same ,it sucks from the sensor and air flow on the top .I observe it go down the temp 0,5 c at 5 cm distance,and 0,7 c at 2 cm distance for this reason i ask you .
Personaly at yours system how cm you have distance sensor-fan ??

It's no important the distance.
In my shield I have the real sensor side direct down, in front of air flow that entrance from grate.