CSP efficiency loss of heliostat with multiple sub-mirrors under wind loads

https://www.solarpaces.org/published-at-energy-concentrating-efficiency-loss-of-heliostat-with-multiple-sub-mirrors-under-wind-loads/

by cinquemb • 3 years ago

1 2 3 years ago

solarpaces.org

aurizon• 3 years ago

They should plot frequency/direction/intensity = analyze, it might be possible to assess any resonances and glue weights(or other peak suppressors) to reduce this. This changes the frequency, but excursion magnitude needs a dissipative mechanism of some sort so vibrations are damped. A small good conductor with a magnet, sort of a voice coil like item at the back could extract energy by shorting like mag brakes. You could also counter drive the wind in a balanced way with multiplexed audio frequencies - needs some filtering, but the concept is valid. Each mirror would run it's own feedback loop - not sure if these mirrors are aligned and tightened, or if there is something in the way of a feedback loop. A fiddly add-on, but if it saves 15-20% energy efficiency.

cinquemb• 3 years ago

I wonder how much it will increase the heliostat costs by doing something like this? (Or will offset on lifetime costs of the heliostat by making it cheaper)?

CSP efficiency loss of heliostat with multiple sub-mirrors under wind loads

Related Stories