Cleaning pv cells with ultrasonic waves

Thread Starter

محمد نور

Joined Dec 17, 2016
Using an ultrasound generator to vibrate the pv cell so the dust falls down.
Is this idea popular? And what do you think about it?
And how much power the generator needs to "shake off" pv panels?


Joined Sep 9, 2010
I suspect it won't work because of resonance and damping in the structure, making it hard to reliably vibrate such a large structure at such a high frequency, and because I doubt that vibrating in air would dislodge any dirt. In liquid, ultrasonic waves move any loose particles back and forth and this removes loose particles from the surface. But water is 1000 times denser than air. I forget the viscosity ratio but it must be similar.

This is all just speculation on my part. I'd love to be proven wrong.