voltaic micro alim comparison - wind - batteries

[proff]

Hello,

That's good news. The project is refined.
Being hooked up with a club launching balloons stratospheric I think there is still consumption to decline.
- The camera unless it is high definition with lots of gadgets seems to consume me too much.

so the camera I chose 2 a micro cam that consumes 150mw and another 250 has 300w it is bigger and heavier but the interest is that it embeds a system of adjustment of the white for the against days and ca ca interest me
I would like to find a cam in high definition but must have a screen cappable to display it and a transmitter that can also transmit it briefly c galere I believe that to make beautiful pictures there is only the device foto

- The transmitter consumes 3 W for 750 mW output, so you can earn, normally, a good Watt of conso. (ball buddies use 500 mW and the ball goes up to more than 10 km)

yes so I do not know exactly how its led the anteien of probe brooms nor mem what mass they can ship nor what modulation they use but I doubt to be able to make an anteine ​​directive light enough to replace the anteine ​​quard'onde original I will do a directive on the receiver is not a problem but hey I do not know if it will be enough

the links on the transmitters that I found
http://www.correa-china.com/product/sho ... r-134.html

yen has another that only 100mW output and 100ma (we divide by 2,5 the conso but by 5 the power is not a good forward)

http://www.correa-china.com/product/sho ... r-264.html

Voila for the conso. For the platform, I look rather for a hollow plane containing buffer batteries (Li-Po) and wind turbines on the top of the board. This concentrator for wind turbines placed at the top end.
For wind turbines taking a surface of 300 x100 mm and a wind of 5 m / s we should get to recover a half Watt (60 ma / 12 V).

so for wind turbines I'll see I have several constraints
- the assembly must allow to accept shear in the layers of air (wind direction different to the height of the mobile than that at the kite) without moving the camera: for that I have 2 choice be I I put it below with a joint or I put them elsewhere on the line it's possible but I must at this moment forget the upward movement or I bridle the wind turbines on the line above the camera but at that moment must I study how it behaves

- the assembly must be light and make a concentrator to accelerate the wind artificially it is on a mat fixed to the ground but on a kite line it will lead a very important aerodynamic drag I have to test to see how it behaves anyway I will do it in fabrics stretched on carbon rods. Without concentrator I should have 6 micro wind turbines which is about 150mm diameter which is a total if I do not dig 0.42 m² I have not yet understood the calculations to arrive at the power depending on the size of the wind turbine but if i do a report on your calculation i get 5.6W for 0.42m² I had to feed me somewhere at the same time the micro turbine manufacturer advertises 60W for a 10 turbine rack with 10m / s

http://store.motorwavegroup.com/tg1017.html

I will have that 6 ca will have 18w (under 5m / s) no? or the la I am confused me
good go just knot the cortex for tonight!
a plus and thank you for all your comments it's cool!

[proff]

Try to see what you can get from these 2 links,

http://www.office-work.biz/owork/franca ... 14476.html

http://fr.nanosolar.com/technologie


otherwise, send an email to Bertrand Picard, via his site to see what he uses. He looks nice, I already sent him an email and got an answer.

so i was watching the PV movies a bit i saw those konarka with their disappointing performance i saw other ascent solar (i posted another message the top) but there is little info
and I notice that apart from konarka there are few sellers who sell reeleemnt is that demonstrators or then pharaonic project of modern buildings
and as I said it's hard to be predictive on a day on the amount of sun
short c a little difficult and if I come to put the direct film on the kite which is interesting enough for other applications ... the first concern is that I will have to walk son on a much of the line between the kite and the mobile

by the way I do not know bertrand picard but I will try to find who it is! ( thanks Google)

[Obelix]

Hello,

Well, I will specify:
For the cam the limitation comes only from the cam, the transmitter allows the high definition and ok for the automatic white balance.
For my part I usually use a WATEC WAT-202B with auto-iris cosmicar (consumption 12 V / 160 my)
For the transmitter the 100 mW would be almost enough by putting a modified antenna for this application. (Antenna patch easy to achieve and not heavy and gain 6 db is 4 power)

For wind turbines:
Surface Pi * D² / 4 = S Power available: P = 0.5 * 1.2 * S * V * V * V
Let S = 3.14159 * (.25) ² / 4 = 0.05 m² to multiply by 6 => 0.3 m²
P = 0.5 * 1.2 * 0.3 * 10 * 10 * 10 = 180 Watts available in the wind
By discounting an efficiency of 20% => 36 Watts
Or at 5 m / s => 4.5 Watts for the 6 turbines. (12 V / 375 ma)

Here is a summary we should arrive at
cam 160 + transmitter 100 + telecom 100 => 360 ma
and with the 6 turbines we manage to close the balance sheet at 5 m / s wind.
It's not beautiful!

Obelix

[elephant]

proff wrote:

by the way I do not know bertrand picard but I will try to find who it is! Smile (thanks google)

Ouuuuuuuuuuuuuh!

This is the grandson of Augustus! (Stratospheric balloon, batyscaphe) and the promoter of solar impulse!

http://www.solarimpulse.com/

[proff]

proff wrote:

by the way I do not know bertrand picard but I will try to find who it is! Smile (thanks google)

Ouuuuuuuuuuuuuh!

This is the grandson of Augustus! (Stratospheric balloon, batyscaphe) and the promoter of solar impulse!

http://www.solarimpulse.com/

hey hey yes I was completed my education after posting my message yesterday and actually I knew but I had forgotten his name this being not played quite in the same course and I doubt solvay me made batteries PV sintered for my app! ;)

[proff]

Hello,

Well, I will specify:
For the cam the limitation comes only from the cam, the transmitter allows the high definition and ok for the automatic white balance.
For my part I usually use a WATEC WAT-202B with auto-iris cosmicar (consumption 12 V / 160 my)
For the transmitter the 100 mW would be almost enough by putting a modified antenna for this application. (Antenna patch easy to achieve and not heavy and gain 6 db is 4 power)

ouaaou ... thank you for all this info a little correction for me in my message before the cons of the cam it was well ma that it was necessary to read and not mW sorry I was doing some calculations next and j mixed everything up!

I will go urgently find info on your camera and if you have a link on a site where you see your achievements it really interests me a lot donf donf;) !!

I need to find info on the antennas you also talk about

For wind turbines:
Surface Pi * D² / 4 = S Power available: P = 0.5 * 1.2 * S * V * V * V
Let S = 3.14159 * (.25) ² / 4 = 0.05 m² to multiply by 6 => 0.3 m²
P = 0.5 * 1.2 * 0.3 * 10 * 10 * 10 = 180 Watts available in the wind
By discounting an efficiency of 20% => 36 Watts
Or at 5 m / s => 4.5 Watts for the 6 turbines. (12 V / 375 ma)

Here is a summary we should arrive at
cam 160 + transmitter 100 + telecom 100 => 360 ma
and with the 6 turbines we manage to close the balance sheet at 5 m / s wind.
It's not beautiful!

Obelix

small note on your surface calculation PI * R² enough! ;)
if I just summarize the basic formula P = 0.6 * S * v ^ 3 for absolute power ok
20% yield ok

on the other hand the absolute power is calculated for what speed of wind by which I do not understand the passage to 5 / ms ???

well I continue my research and my calculations

thank you for your help !!

olive

[Obelix]

Hello,

For wind turbines I always calculate for 10 m / s by lazy!
10 * 10 * 10 = 1000 is easier in mental arithmetic
But in your case I think 5 m / s is more realistic and gives a mini easily obtainable .... above it is only better ....

For a site: http://boufigo.free.fr/ballon3&4/index.htm
With photos and explanations .....

For the camera:
http://www.axos.eu/fichiers/brochures/WAT-202B.pdf
Very approximate price 100 euros and we find it on Ebay!

For the antenna no pb. Any made or build a google hit with wi-fi patch antenna gives a lot of results.

Obelix

[proff]

so yes
I've been to see the antennas patches and actually it must be easy to find themselves to be done or do all the antennas more directive
surtotu that in my ca it's easy to follow from the ground the kite is always in the direction of his line!

suddenly I will be able to limit myself to 100mw and put a directive in reception but also in emission !!!
remains to find a way to make it a light
in any case in reception it gives good hopes already

for the cam I also found it has not hurt I made first test with the model just below (in 9v) it was already good
for the iris I have not yet found but I continue to seek if possible a HD cam leaving to add 2 micro more wind turbines
(ps: that's it were shipped you soon !! 1er test!)

[elephant]

attention, we now meet 2 types of auto iris: those driven by the video signal and those driven in DC, cheaper. Know what the camera delivers.

[proff]

ouep ca I understood understand .. thank you for clearing
I found beautiful HD camera but it's digital fire wire outputs and to transmit it in UHF c not obvious!