|
Axelvold
|
 |
« on: March 15, 2009, 08:37:23 AM » |
|
This is a picture of my new-built radiation shield  |
|
|
|
|
Logged
|
Lars Magnusson Axelvold / Sweden 55° 57' 41" N / 13° 6' 1" E WX Station: Davis Vantage Pro2 Plus   |
|
|
|
Anthony
|
|
« Reply #1 on: March 15, 2009, 08:42:09 AM » |
|
Nice job. Did you fan aspirate it? Keep up posted on how it works.
|
|
|
|
|
Logged
|
 Thanks, Anthony WB8YUE |
|
|
|
Axelvold
|
|
« Reply #2 on: March 15, 2009, 08:49:47 AM » |
|
Nice job. Did you fan aspirate it? Keep up posted on how it works.
on top, I have installed a solar powered fan  |
|
|
|
|
Logged
|
Lars Magnusson Axelvold / Sweden 55° 57' 41" N / 13° 6' 1" E WX Station: Davis Vantage Pro2 Plus |
|
|
|
d_l
|
|
« Reply #3 on: March 15, 2009, 09:29:40 AM » |
|
That is a professional looking installation. Does it have 24 hr fan aspiration or daytime only?
|
|
|
|
|
Logged
|
--Dave--Wireless VP2 w/ solar, 24hr FARS, Heater, (Envoy-WLIP)*2-Meteohub, WL 6.0.0, WU & W4U= KNVRENO37 NetcamXLPeople always talk about the weather, but they never do anything about it. Not me. I'm gonna measure it. www.tceweather.com
|
|
|
|
Axelvold
|
|
« Reply #4 on: March 15, 2009, 09:36:08 AM » |
|
That is a professional looking installation. Does it have 24 hr fan aspiration or daytime only?
it is driven by a solar panel so it only spins daytime |
|
|
|
|
Logged
|
Lars Magnusson Axelvold / Sweden 55° 57' 41" N / 13° 6' 1" E WX Station: Davis Vantage Pro2 Plus |
|
|
|
sam2004gp
|
|
« Reply #5 on: March 15, 2009, 09:40:34 AM » |
|
Where did you get the solar panel? What are it's specs? What are the specs on the fan?
|
|
|
|
|
Logged
|
|
|
|
|
Axelvold
|
|
« Reply #6 on: March 15, 2009, 09:56:11 AM » |
|
Where did you get the solar panel? What are it's specs? What are the specs on the fan?
I bought it in a local hardware store, diameter hole ø: 150 mm. Ø 215 mm, have no spec on speed it did cost me 34$ http://www.jula.se/e-Sales/esa/ItemDetails.jsp?@where.ItemID@EQ=650053 |
|
|
|
|
Logged
|
Lars Magnusson Axelvold / Sweden 55° 57' 41" N / 13° 6' 1" E WX Station: Davis Vantage Pro2 Plus |
|
|
|
Anthony
|
|
« Reply #7 on: March 15, 2009, 10:57:59 AM » |
|
So does the fan draw air in and exaust out the top or the other way around?
|
|
|
|
|
Logged
|
Thanks, Anthony WB8YUE
|
|
|
|
Bushman
|
|
« Reply #8 on: March 15, 2009, 11:14:44 AM » |
|
My Swedish is a bit weak.  What is the output voltage of the solar cell? |
|
|
|
|
Logged
|
|
|
|
|
Axelvold
|
|
« Reply #9 on: March 15, 2009, 12:58:01 PM » |
|
So does the fan draw air in and exaust out the top or the other way around?
The fan draws out the air. My Swedish is a bit weak. What is the output voltage of the solar cell? There is no spec on how much the output is from the solar cell. I will try to check this |
|
|
|
|
Logged
|
Lars Magnusson Axelvold / Sweden 55° 57' 41" N / 13° 6' 1" E WX Station: Davis Vantage Pro2 Plus |
|
|
|
Axelvold
|
|
« Reply #10 on: March 17, 2009, 10:54:55 AM » |
|
Here's some more information on the fan, luftfödet is 12-15M²/h depending on how much the sun is shining
I will keep you posted on how much power the solar cell provides
|
|
|
|
|
Logged
|
Lars Magnusson Axelvold / Sweden 55° 57' 41" N / 13° 6' 1" E WX Station: Davis Vantage Pro2 Plus |
|
|
|
Axelvold
|
|
« Reply #11 on: March 18, 2009, 06:25:28 AM » |
|
The output of the spolar cells is 1,5V at max sunlight
|
|
|
|
|
Logged
|
Lars Magnusson Axelvold / Sweden 55° 57' 41" N / 13° 6' 1" E WX Station: Davis Vantage Pro2 Plus |
|
|
|
sam2004gp
|
|
« Reply #12 on: March 18, 2009, 06:28:09 AM » |
|
Interesting, so I assume that your fan is rated somewhere around 1.5 volts as well? I have never seen any computer type fan much below 4.5 volts, that would serve as what I think would be a good enough size for a FARS.
|
|
|
|
|
Logged
|
|
|
|
|
Axelvold
|
|
« Reply #13 on: March 18, 2009, 06:53:03 AM » |
|
Interesting, so I assume that your fan is rated somewhere around 1.5 volts as well? I have never seen any computer type fan much below 4.5 volts, that would serve as what I think would be a good enough size for a FARS.
Hi Sam this is not a computer fan which I have linked up with solar cells, it is all in one, both the fan and solar cells are placed in the same design. |
|
|
|
|
Logged
|
Lars Magnusson Axelvold / Sweden 55° 57' 41" N / 13° 6' 1" E WX Station: Davis Vantage Pro2 Plus |
|
|
|
sam2004gp
|
|
« Reply #14 on: March 18, 2009, 07:08:27 AM » |
|
Oh...
So am I correct when I say... "The solar panel dome comes with a fan pre-installed"?
I was trying to find out more about the unit; so I tried to translate the web page you gave, to english, but google's translator did not like it.
I wish I could find something like it here in the United States?
|
|
|
|
« Last Edit: March 18, 2009, 07:11:47 AM by sam2004gp »
|
Logged
|
|
|
|
|
|
|
Axelvold
|
|
« Reply #16 on: March 18, 2009, 07:45:27 AM » |
|
Oh...
So am I correct when I say... "The solar panel dome comes with a fan pre-installed"?
I was trying to find out more about the unit; so I tried to translate the web page you gave, to english, but google's translator did not like it.
I wish I could find something like it here in the United States?
That is correct. a possible solution is that I buy one and send it to you, unless you find someone in the U.S. whoops, I missed your post that you already found one. it is an identical fan |
|
|
|
« Last Edit: March 18, 2009, 07:48:22 AM by Axelvold »
|
Logged
|
Lars Magnusson Axelvold / Sweden 55° 57' 41" N / 13° 6' 1" E WX Station: Davis Vantage Pro2 Plus |
|
|
|
Anthony
|
|
« Reply #17 on: March 18, 2009, 07:50:48 AM » |
|
Lars, they are availabe here. Check his link in the post above yours.
|
|
|
|
|
Logged
|
Thanks, Anthony WB8YUE
|
|
|
|
Anthony
|
|
« Reply #18 on: March 18, 2009, 07:55:18 AM » |
|
Sam,
Thats an impressive sounding little fan. But dang. What a price tag. Also, can't help but wonder if it would not move to much air? Especially insde of a puny little temp sensor shelter.
Speaking of solar pannels. I would like to have one of the ones you see along the highway that run the flashing yellow caution lights. WIth one if those. You could run you entire weather station with power to spare.
|
|
|
|
|
Logged
|
Thanks, Anthony WB8YUE
|
|
|
|
sam2004gp
|
|
« Reply #19 on: March 18, 2009, 08:14:52 AM » |
|
Anthony, yes I would like one of those too. I have "wagged and wished" for those a few times. ......And just so you know, if any come up missing around here, it was not me.   |
|
|
|
|
Logged
|
|
|
|
|
Anthony
|
|
« Reply #20 on: March 18, 2009, 08:17:10 AM » |
|
Large solar pannel. What large solar pannel? Whats a solar pannel?
|
|
|
|
|
Logged
|
Thanks, Anthony WB8YUE
|
|
|
|
SlowModem
|
|
« Reply #21 on: March 18, 2009, 08:35:55 AM » |
|
Wal-mart sells solar-powered battery chargers. It has a pretty big panel/cell arrangement. It could probably be hooked up to a fan. But I think Lars' fan is made to order for a radiation shield. And, if you compare it to the aspirated Davis setup, the price isn't bad.
|
|
|
|
|
Logged
|
|
|
|
|
sam2004gp
|
|
« Reply #22 on: March 18, 2009, 09:15:38 AM » |
|
|
|
|
|
|
Logged
|
|
|
|
|
DanS
|
|
« Reply #23 on: March 18, 2009, 09:23:55 AM » |
|
If you decide to go the "do-it-yourself" route vs. invest in a pre-constructed unit, check out www.geekalerts.com/solar-mini-clip-fan/ . Might give you some ideas and the price ain't bad either. Dan |
|
|
|
|
Logged
|
|
|
|
|
sam2004gp
|
|
« Reply #24 on: March 18, 2009, 09:29:38 AM » |
|
Oh thanks Dan, another neat idea. I wonder how well it would fit to the standard ambient shield, and how long it would last. But for $10 maybe I should order 2.
|
|
|
|
|
Logged
|
|
|
|
|
