Exploring the Inductive Resistor Heater

[gyulasun]

....
It then should be only a matter of arithmetic to scale the 'real' capacitor bank based on the same specie of capacitor. It could take well over 150 capacitor$ to get a sustained 3.2Watt draw for 8-Hours with only a 1VDC(max) voltage drop. It's possible to figure that out now just from the above requirements, but actual data is always best to have.

That's all for now ... only takes money.

....

Hi Greg,

Here is a useful link for estimating the Farads for the capacitor test: http://www.circuits.dk/calculator_capacitor_discharge.htm

My playing with some numbers brought this: you would need a capacitor bank in roughly 7750 Farad total capacity value and then starting the test from 25V and running it for 8 hours (i.e. for 28800 seconds) the cap bank voltage would drop to 24.5V and if you change this to allow the discharge down to 24V from the initial 25V, then the cap bank would need to have only half of the 7750 F   i.e.  roughly 3824 Farad.   I used Imax=128000 uA discharge current (3.2 W at 25V) and for capacitor ESR I used 0.1 Ohm (you have to consider later the real capacitors ESR value how they calculate in the series and parallel assembly and recalculate the result with the real ESR value).
I suggest looking for prices at ebay...      

rgds, Gyula

Edit: I found this offer, perhaps a good one at present, still not enough in numbers of the caps though: http://www.ebay.com/itm/20x-Maxwell-2600F-2-5V-Supercap-2600-Farad-Super-Ultra-Capacitor-BCAP0010-USA-/150699241350?pt=LH_DefaultDomain_0&hash=item23165fef86   

[gmeast]

Hi Greg,

Here is a useful link for estimating the Farads for the capacitor test: http://www.circuits.dk/calculator_capacitor_discharge.htm

My playing with some numbers brought this: you would need a capacitor bank in roughly 7750 Farad total capacity value and then starting the test from 25V and running it for 8 hours (i.e. for 28800 seconds) the cap bank voltage would drop to 24.5V and if you change this to allow the discharge down to 24V from the initial 25V, then the cap bank would need to have only half of the 7750 F   i.e.  roughly 3824 Farad.   I used Imax=128000 uA discharge current (3.2 W at 25V) and for capacitor ESR I used 0.1 Ohm (you have to consider later the real capacitors ESR value how they calculate in the series and parallel assembly and recalculate the result with the real ESR value).
I suggest looking for prices at ebay...      

rgds, Gyula

Edit: I found this offer, perhaps a good one at present, still not enough in numbers of the caps though: http://www.ebay.com/itm/20x-Maxwell-2600F-2-5V-Supercap-2600-Farad-Super-Ultra-Capacitor-BCAP0010-USA-/150699241350?pt=LH_DefaultDomain_0&hash=item23165fef86

Hi Gyula,


I very much appreciate your response. I also appreciate the time you spent on your calculations. The exponential discharge curve does mess things up a little. As you can see, the capacitor bank will cost $$thousands$$ of dollars. That's something I am not able to swing. But perhaps I will be able to provide convincing evidence using a shorter test duration. My goal is to run a system cyclically ... discharge and generate heat, then disconnect for a recharge and then repeat the cycle. I hope to eliminate the "Battery Effect" as mentioned in other threads by researchers such as M.D.


An important note: Some of Tesla's systems were isolated systems, or closed systems, and did not necessarily run in real-time concert with the grid. When attempts were made to do so, the systems became  ineffective ... no benefit.  I can't cite the patent, but I recall a street lighting system like this ... no true ground or neutral ... just 'floated'.


Thanks very much for your input Gyula,


Regards,


Greg

[gmeast]

Hi Gyula,


Thanks again. It would take 12 of those to meet the voltage requirement alone ... about $7200.00. I hope those 'so-called' "experts" out there actually realize what it takes to "simply run it on a capacitor bank" to circumvent the "Battery Effect". It's NOT as easy as "simply running it on a capacitor bank" ... unless you're rich$$$$$$!


Now, I may be reading the EBay offer wrong ... if that's 20 Macwell 2600F 2.5V Supercaps then that's a good deal. I might be able to swing something like that, but I'd still need the bank to be pretty wide. I'll look into it.


Thanks again Gyula,


Greg


P.S. Did you ever watch the movie "The last Star Fighter"? Centauri (actor Preston Foster) mentioned someone by the name of "Gyula" ... cool name!