07-13-2024, 04:59 PM
(07-13-2024, 08:12 AM)Waterglass Wrote: I agree with you on the above. NASA lost me on the O Ring thing. Back in the early 1990's I met a PhD who was an expert on O rings. We were OEM contractors for their SCBA'S. He got into a technical arguement with them as they wanted us to change our O ring groove to their's which paralleled the Challenger design.
He showed me their and his letters. In the end NASA backed off and let us continue as-is as we had no failures, leaks or life cycle failures. It was all about the design of the machined O ring groove. Now back on topic.
I dont know about you but I am all for the environment and I am no tree hugger. I have recycled all plant waste into the ground since being a kid. We still do it today and have a bumper crop of tomatoes from seed and yes, they do have flavor.
You could be correct and that is way beyond where I want to go. That being said they will fix it as they have to as as a human race we have no choice. Thats why Congress is banging on the UFO door as someone here on this planet already has the technology that we need as a species to survive. IMO I dont belive that your position is totally without merit but to state that its a smoke and mirrors I disagree. The world is run by money and they all live on coastal shorelines throughout the world. The climate is getting hotter and the seas are rising. Those with the bucks would not stand for a charade. Just like Mr. Eat Bugs over at the WEF. Hes an engineer by education. His old man was a Nazi in WWII.
It will be fixed. Bet your 401K on it!
I do not think it is smoke and mirrors. I know it is. The smoke comes from the wires having too much current put through them if they are used as described by that NASA paper.
Let's take a wire for example that can handle 10 amps. From that 10 amps at 12 volts you can get 120 watts of power through it.watts is volts times amps. Now the same wire at 10 A and 120 V is 1200 W. Then at 10 A and 12000 V it is 120000 W.
The NASA paper says low voltage DC can be put on the wires with regular AC. Alternating current has the advantage of being easily changed from one voltage level to another with a transformer. DC, direct current, requires a lot of electronics to do this. Both lose some energy but the transformer loses less. This loss also occures when DC is made into AC power then the AC is made back into DC. The conversion loss is what the paper is trying to eliminate.
Using the above numbers, the proposel is to put an additional 120 W of DC electricity on the wire with 120000 W it is now carrying. If it worked it would add to 120120 watts of power. But that wire can only carry 10 amps at a time. Because if we put 20 amps through it, the wire will heat up and melt. So we can ether have 120000 W of power or 120W of power but not both.
To get 120,000 watts of power through a wire at 12 volts, the wire has to be 32 time the diameter of the 10 amp example.
This only covers the hardware problem with this paper and not the long distance loss characteristics of AC vs DC electricity which would take a lot longer to explain.
I hope this helps explain why it is a money pit to try to do this.
Does anyone know the minimum safe distance of ignorance?