The application is actually a (relatively) low-speed (max. 150 kmhr) air-propelled ground-effect vehicle using low-pressure industial compressor powerplant, primarily because of other requirements for the compressed air aside from propulsion. My question relates to "eg. if I already have 33% of...
My only experience with flywheel failure was when a kid driving a Camaro missed a shift on the street in front of our house one night about 3AM. There was a crash, and we went into our livingroom to find a significant chunk (about 1/4 or less) of his engine's flywheel smoking on the carpet in...
So do I take it that eg. 1000 shaft kw into an air compressor operating at eg. 50 psi, resulting airstream directed into a venturi volume multiplier will produce propulsive effect just as efficiently as 1000 shaft kw driving a propellor?
No objection?
Pechez les vaches.
I'm sure this is a long-sorted issue, but was just wondering about relative efficiency issues. What would be the relative power efficiency of using eg. 3 barg compressed air as propulsion? Assuming of course that
a) The wieght of the compressor machinery would be a non-issue.
b) A venturi...
I'm working on designing a piston / cylinder / ring assembly for a large (eg. up to 6" bore) medium-high-pressure (eg. 30 bar) compressor requirement.
Anyone know of available technology capable of doing this (eg. rings).
Alternatively, looking for someone capable of designing this. Payment...
The "6 parallel AC lines for minimum interconnect" sounds about correct. Advantage of DC ties is they don't require synchronizing, can just leave ERCOT isolated in frequency whatever it wants. Makes it an obvious choice for a continantal super-grid.
Pechez les vaches.
Right-of-way should be simplified a lot just by following freeways and railways with extra-tall poles similar to wing generator towers, in fact in good wind areas would make sense to extend the towers another 30 meters and put wind generators on top of them.
Pechez les vaches.
Agreed on AC ties. Too expensive now. What Texans should start supporting now is a large continental DC super-grid. Give Texas a 10 GW dc link west to CA, a 10 GW dc link North to Wyoming (coal), and another 10 GW east into Florida and all the issues go away. It could have been completed...
Ah, that makes sense. CNN wasn't clear of that distinction, though they did mention something about 80% of Texas, now I recall they stated "affected ERCOT area, which manages 80% of grid." They did say the blackouts affected omly/mainly 3 large cities which they named so I should have picked...
Dotty Roark (ERCOT). 7:22pm CST, CNN. 1050 pre-agreed interruptible. 1000 mw of firm load. Are a lot of peakers still in winter layup or what?
Pechez les vaches.
Anybody have any detailed information? Just heard on CNN about rolling blackouts inititated by the grid manager covering 80% of state. 15 min intervals. Seems afully early in the year.
Pechez les vaches.
Heating due to induction should be entirely a function of amperage, voltage should not be a factor in what temperature the elbows come to, though it may be a factor in whether the resulting heat breaks down the insulation. Likely the lower voltage runs can put up with the added heat load for...
