I am making a solar panel cleaning robot and want to select appropriate motor for the selected roller brushes for the cleaning.
The brushes are as shown: https://3.imimg.com/data3/MN/MJ/MY-8076819/roller-brushes-250x250.jpg
The dimensions of brushes are: InnerDia:0.7",Outer dia(along with bristle):4.3",bristel(made of teflon) thickness:2mm, length of brush:12"
I read some papers which conducted analysis in saudi arabia for soiling effect and there was 35% effeciency reduction in o/p for 300um dust accumulation on the panels and after applying force of 0.15N to 0.3N tangentially(they rubbed/scratched the surface) along the surface they could remove the dust and could increase the effeciency so, now I want to accomplosh this cleaning using roller brushes how do I go about selecting the motors?
You select motors primarily according to the torque (Newton-meters) and power (Watts) required by the mechanism that the motor will drive. Usually one would select a motor that has around twice the required capability.
Secondary considerations: AC or DC power, weatherproofing, motor power supply voltage.
You also need to work out the speed needed.
For torque we know the radius of the brushes is about 6cm, and we want 0.3N tangential force (presume
this is for the size of brush quoted above), in which can the torque = 0.06 x 0.3 = 0.018 Nm.
[ actually probably want a healthy safety margin above this since friction is involved, say 0.05Nm ]
You will need water as well as the brush. The last thing you want to do is scratch the surface by brushing a dry solar panel.
...R
Hi
@Robin I think you will find this is a resurrection of an old post, and not on subject.
@ecarr1985 I have recommended that you have you post changed to a new thread.
Tom.... 