The system of collect and measure the solar energy is ready. We put a panel on the wall of the lab inside the school and in the next two photo we are showing what we can do. The energy from the solar panel (on the top with an angle of 17°1) comes from top right of the panel, nothing is coming from the wind (top left of the panel) because the "airplane" is still brocken. The system seems run without problems.
Photo N.1 - Charging the Battery (left side of the Panel)
You can see from the top: a) the solar Regulator; b) the Inverter and c) the Battery
Photo N.2 - Measuring Energy (right side of the Panel)
You can see from the top: a) measure of Volt; b) measure of ampère c) lamps (6W - 12V each)
perfect again, just what i wanted to know, we will set ours up soon, and get data. when are we planning to collect data , before meeting i hope?? just as a trial? is it ok if we use different dataloggers to each other, ours measures voltage, but do we need current as well?? lucy
ReplyDeleteWow - you have done a lot of work Stefano!!
ReplyDeleteThis makes it very clear for us all.
Susanne
Lucy and Susanne, you are too kind, I love you!
ReplyDeleteWe can collect data for one or two days, from 8am to late afternoon before meeting;
I cand understand "do we need current as well"? the panel/airplane generate current.
i everybody,
ReplyDeletegreat work Stefano!
Here in France, we have bought two Xplorer Glx with voltage-Current sensors PS-2115. They seem to measure only direct current and direct voltage. This raises problems for measures with the windturbine.
Our question to every team: what are the sensors you bought ?
Other question : do you include light bulbs in an electric circuit to measure current as well ?
Can you send us pictures of your installation ?
We'll try to finish our installation before meeting and to come with aur first data...
Emilie
hi everybody,
ReplyDeletefirst answer: we have purchased two multimeters, (9.90 euro each). The first connected in parallel to measure the electric potential difference (volts), the second in series with the lamps, measures the intensity of the current (ammeter). The power calculated by multiplying the volts per ampere. (W = V * A).
second answer: the lamps are required to have a load applied to the circuit to measure the amps.
We normally use three of the four lamps in order to keep the voltage near 12.
The values that we measure these days (good weather, clear skies) from PV is about 8 / 9 volts, 1.1, 1.6 amperes, which corresponds to a maximum power (at 12 am local solar) of about 9-14 watts .
From Monday, May 2 we started systematic measurements at 10.15 GMT.
If photos are not clear in the post, we can publish other.
Fabio
*)if you do not understand English translated by google, be patient, tell me, I'll help from a colleague
thanks for photos and explanations. Our solar panel is now on the roof but our physic laboratory is so poor that they couldn't borrow me the rigth lamps (I mean the same as you 12V, 6W)!!! So I have to order some ...
ReplyDeleteI could measure 10,4 Volts and more than 1 A with the Xplorer GLX (I had olny one lamp 12V and 15W) . I had to turn off the datalogger because the sensor only support current under 1 A ... I'll have to wait for the lamps I will order.
I'm not sure we'll be able to come in Italy with our first measures .... I'm sorry...
Ciao a tutti,
Emilie
Hi everybody,
ReplyDeleteYOUPI !!!! We've made our first measures with the solar panel and the Xplorer GLX. It works !!!
I'm very happy to see you all again in Italy!
see you soon
Emilie