Video: The Super Supercapacitor | Brian Golden Davis

[fly_tornado]

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[eightyknots]

Wow!

 

How long before this technology is developed sufficiently so that it can be successfully used for quiet, long-endurance, powerful recreational (and commercial) aircraft?

 

 

[Guest Andys@coffs]

Remember the conservation of energy requirement. Assuming 100% efficiency (which is just B/S) what you put in is all you can pull out. In the example of 1 second on a DC supply the capacitor probably pulled heaps of Amps for a few mS out of the supply and then delivered 10mA for 5 minutes. So if we take the iphone 4S that they were waiving around that device has a 3.7V 1.42AmpHour battery , which using P=IV equates to 3.7x1.42 = 5.254Watts of work for 1 hour.

 

To charge that in 1 Seconds, assuming a supercapacitor Battery replacement would require 5.254 x60 (minutes) x 60 seconds = 18,914 Watts of input for 1 second. if we are talking connection to a 240V AC source ignoring all efficiency issues we are talking pulling nearly 80Amps of power...your wall socket is rated for 10A....... Now in reality to make it work within the specified limits means charge time would be 8 seconds rather than 1....I can live with that, but thats just for a phone.......

 

now Aircraft where a 120Hp motor is rated at 89,484 Watts of energy.....using the same basis as we worked above, anyone keen to work out how many amps at 240v is required for 15 minutes of flight? Even plug in charge electric cars now are limited in recharge time not so much because of battery limitations but rather that you cant pull energy out of the wall fast enough to charge at a faster rate.....

 

So not saying this invention doesnt have practical realities Im sure it does, but just reflect on the limited energy availability out of the wall....

 

 

[Thirsty]

Didn't he say the phone would charge in 30 seconds? Get what you mean by the car charging example and I'm guessing there may be advances there one day too - maybe a HUGE super capacitor on site that is constantly charged relatively slowly using mains power but able to push out large amounts of amps to charge the cars as they pull in.

 

I like the whole idea for sure really sick of batteries :)