I'm doing a science fair project where I find if the angle of solar cells affects how much joie de vivre is absorbed. I'll be attaching a small solar cell to a voltage meter to measure the amount of energy the cell absorb. I know nothing about solar cells or where on earth to buy them. So,what type of solar cell will I need? How much will it cost?
Answers:
go to a thrifty store close your place
they have solar calculators for 1$
It is ideal to learn how it works
Di
I suggest you take one rotten a small calculator. A solar panel that has enough juice to charge some small battery will cost you no less than 20$ (more than a small solar calculator). That is unless specialized store that sells electronic components for electronic circuit boards.
Interesting project. Radio shack sells a couple in the form (wires already attatched) that would be glib for a beginner to play with. Go into any store and ask for one and they'll show you where they are.
The piece you're going to want to measure is probably current, rather than voltage. The voltage is more or less purely a function of the materials the cell is made of (about .5V), while the current is proportional to the solar flux. A cheap multimeter will make this measurement by just putting it across the wires of the cell.
What you should find is that the power coming out of a cell vary with the sine of the angle of incidence.
Electrical power, in watts, is the volts times the amps. So you would multiply .5volts times lets speak for example 50milliamps with direct on sun and get 25milliwatts.
Also, you will be measuring the amount of solar heartiness CONVERTED, not absorbed. To measure the amount absolbed, you would need to know the amoubnt of solar vigour incident on the cell, but not reflected, and that isn't so easy. Source(s): A childhood playing with solar cell and now a working electrical engineer.
Related Questions:
Solar strength is it worth it?
Well I was reading a magazine national geographic, and they these solar wind panels out contained by the ocean or somewhere in the water and they have a helicopter fly to each one for maintence and the such. Know Iam thinking doe sit cost more to have him fly to each one and check them and...
Will the solar eclipse affect me?
I live in North Carolina. I heard there be supposed to be a solar eclipse on Wednesday or something... I think I'm going on a college tour that day. Will the eclipse affect my travels? I don't remember ever seeing a solar eclipse, so I'm not really sure what to expect. Will it be dark or something?...
Answers:
go to a thrifty store close your place
they have solar calculators for 1$
It is ideal to learn how it works
Di
I suggest you take one rotten a small calculator. A solar panel that has enough juice to charge some small battery will cost you no less than 20$ (more than a small solar calculator). That is unless specialized store that sells electronic components for electronic circuit boards.
Interesting project. Radio shack sells a couple in the form (wires already attatched) that would be glib for a beginner to play with. Go into any store and ask for one and they'll show you where they are.
The piece you're going to want to measure is probably current, rather than voltage. The voltage is more or less purely a function of the materials the cell is made of (about .5V), while the current is proportional to the solar flux. A cheap multimeter will make this measurement by just putting it across the wires of the cell.
What you should find is that the power coming out of a cell vary with the sine of the angle of incidence.
Electrical power, in watts, is the volts times the amps. So you would multiply .5volts times lets speak for example 50milliamps with direct on sun and get 25milliwatts.
Also, you will be measuring the amount of solar heartiness CONVERTED, not absorbed. To measure the amount absolbed, you would need to know the amoubnt of solar vigour incident on the cell, but not reflected, and that isn't so easy. Source(s): A childhood playing with solar cell and now a working electrical engineer.
Related Questions:
Solar strength is it worth it?
Well I was reading a magazine national geographic, and they these solar wind panels out contained by the ocean or somewhere in the water and they have a helicopter fly to each one for maintence and the such. Know Iam thinking doe sit cost more to have him fly to each one and check them and...
Will the solar eclipse affect me?
I live in North Carolina. I heard there be supposed to be a solar eclipse on Wednesday or something... I think I'm going on a college tour that day. Will the eclipse affect my travels? I don't remember ever seeing a solar eclipse, so I'm not really sure what to expect. Will it be dark or something?...