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Technology Stocks : Energy Conversion Devices

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To: gg cox who wrote (8274)	9/9/2007 1:45:48 PM
From: Lazarus_Long	Read Replies (2) of 8393

Let's see.... 52 kwh = 52 kilo-(1 amp X 1 volt)-(3600 seconds) = Let's give them a break and say their using 440 volt outlets (not too common). Then = 187,200,000 watt-seconds That's 425455 amp-seconds at 440 volts. Let's give them 6 minutes. 420 seconds. That means 425455/420 = 1013 amps charging current. This calculator will only go up to 240 volts 1-phase, so let's use that and 2000 amps current. powerstream.com It gives a wire cross section of 2,000,000 circular mils assuming 20 foot cable round trip length. (The calculation also assumes no resistance in the wire.) A circular mil is a unit of area used especially when denoting the cross-sectional size of a wire or cable. It is the equivalent area of a circle whose diameter is 0.001 (10-3) inch, or approximately 0.7854 millionths of a square inch (or 2.5 x 10-7 times pi). searchnetworking.techtarget.com so the cable has an area of sqrt( (210^6/0.7854)10^-6 ) = a diamater of 1.5 inches. Appears practical. Humongous amount of power and energy though. You wouldn't want to be anywhere near if anything went wrong.

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