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Solar powered air generator

 
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Hey guy
Was thinking in line of using a solar powered compressor to tun an motor generator which charges a batery faster. The air from compressor is run to a tesla turbine .
Is this possible and how efficient
 
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Welcome to Permies, Hillary.

I don't think it works that way. The transfer losses would kill the idea. It's more efficient to charge a battery with solar rather than to use solar to compress air to turn a turbine to run a generator to charge a battery.

I believe this falls under the KISS rule.

-CK
 
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Every conversion means losses. They can be anywhere between 90% to 10%.

Here are my guesstimated efficiencies for your proposed setup:
Solar -> electricity: 15% (solar panels)
electrical -> mechanical 80% (motor)
mechanical -> pneumatic 30% (compressor)
pneumatic -> mechanical: 30% (turbine)
mechanical -> electrical: 80% (generator)

That makes a total of 0.15 * 0.8 * 0.3 * 0.3 * 0.8 = 0.00864 (0.8% efficiency). So for every 1000W of solar input, you get 8W out.
This is compared to just hooking up the solar panels to the battery (15% efficiency -> 150W output for 1000W solar input).
 
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What is a “solar powered compressor “?
 
Chris Kott
pollinator
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I would guess that "solar powered compressor" means a conventional air compressor deriving its power from a solar setup of some sort. I don't know if it's possible, or good for any type of motor used for compressor applications to be driven by any kind of variable or intermittent power, so it might not even be possible to have an electric motor-operated air compressor directly powered by solar power without already having a battery bank and associated infrastructure.

I think, all things considered, that including an air compressor in the loop serves no purpose but to waste energy. If you need to run an air compressor for your other operations, and if your solar setup has a high-enough capacity, by all means run it off your solar. But as I mentioned above, all those conversions kill your efficiency.

-CK
 
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Sebastian Köln wrote:Every conversion means losses. They can be anywhere between 90% to 10%.

Here are my guesstimated efficiencies for your proposed setup:
Solar -> electricity: 15% (solar panels)
electrical -> mechanical 80% (motor)
mechanical -> pneumatic 30% (compressor)
pneumatic -> mechanical: 30% (turbine)
mechanical -> electrical: 80% (generator)

That makes a total of 0.15 * 0.8 * 0.3 * 0.3 * 0.8 = 0.00864 (0.8% efficiency). So for every 1000W of solar input, you get 8W out.
This is compared to just hooking up the solar panels to the battery (15% efficiency -> 150W output for 1000W solar input).

hi sebastian you are right except for the efficiency of solar panels. A 1000 watt array would produce 1000 watts of electricity. The 15 percent efficiency number refers to how much of the solar energy hitting the panel is converted to electricityso your true energy harvested would be 57.6 Watt hours of the original 1000 Watt hours using your other efficiency numbers...
Cheers, David
 
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