[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Wireless transmission of power,

Original poster: "Mike" <induction@xxxxxxxxxxx>

Hi Ed,
Wow! You must have rounded a number someplace, I used your total C and got 8.0002 Hertz. Throwing such large values at my program (I like RFS, an old DOS program liked by many a broadcast CE) may have confused it a bit, I got a Q of .00041775, oh well!

----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Thursday, March 17, 2005 6:29 PM
Subject: Re: Wireless transmission of power,

Original poster: Ed Phillips <evp@xxxxxxxxxxx>

Original poster: "Lau, Gary" <gary.lau@xxxxxx>

This may be beside the point, but how the HECK do you build a secondary
to resonate at 8 Hertz?  What size topload?  Please give details beyond
"I hacked my secondary in half..."

Gary Lau

Here's my design:

Cylinderical coil
Resonant frequency = 8 Hz
Coil diameter = 1000 feet
Coil length = 2000 feet
Top load is sphere of 1000 feet diameter, C =~ 6600 uufd.
Distributed C =~ 15100 uufd
Total C =~ 21700 uufd
L = 18,238 henries
Wire size = #10 (0.1 inch dia)
Wire length = 38,340,000 feet
Wire weight = 1,219,247 pounds
AC resistance = 38,298 ohms

Increase wire diameter to 1 inch
Wire weight = 121,924,700 pounds
AC resistance = 382.98 ohms
Winding factor =~ 0.53

Quite a coil and top load!  (Way, way bigger than Wardenclyffe!!!)
Tesla's world power system had a top load consisting of two concentric
spheres, one grounded, of the diameter of the earth.  I'll give the
design of that coil some other time.