The Electric Car
in [Design]
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From: BradGuth on 3 Oct 2007 08:12 On Oct 2, 5:11 pm, Robert Adsett <s...(a)aeolusdevelopment.com> wrote: > In article <qji5g350cptmj32odgpri3r3hobin24...(a)4ax.com>, John Larkin > says... > > > > On Tue, 2 Oct 2007 17:59:32 -0400, "daestrom" > > <daestrom(a)NO_SPAM_HEREtwcny.rr.com> wrote: > > > >"The Ghost In The Machine" <ew...(a)sirius.tg00suus7038.net> wrote in message > > >news:3aq8t4-u38.ln1(a)sirius.tg00suus7038.net... > > >> In sci.physics,BradGuth > > >> <bradg...(a)gmail.com> > > >> wrote > > >> on Mon, 01 Oct 2007 16:19:59 -0700 > > >> <1191280799.545597.239...(a)n39g2000hsh.googlegroups.com>: > > >>> On Sep 30, 11:20 pm, The Ghost In The Machine > > >>> <ew...(a)sirius.tg00suus7038.net> wrote: > > > >>>> Where? Oh, you must be seeing things again. In any event, anyone > > >>>> who knows chemistry can figure out the above fact. I'm still curious > > >>>> as to how you get 40 kW/m^3 from variants of solar energy. > > > >>> A 100~125 meter tall tower will take up roughly 100 m2 worth of > > >>> surface footprint at it's base, that which can't easily be utilized > > >>> for all that much other than a fluid storage tank or perhaps on behalf > > >>> whatever fluid processing that could rather easily be contained within > > >>> the somewhat less than 100 m2 interior. However, on top of this > > >>> sucker is a good 3.5~4.5 MW wind turbine, and well enough below the > > >>> blade sweep is a very large DVD like disk of those 25% efficient PV > > >>> cells (we're talking better than twice that amount if using William > > >>> Mook's multi-band and special lens enhanced PV cells) that'll track > > >>> sunrise to sunset, as well enough elevated above the local terrain and > > >>> whatever trees so that full solar benefit is easily maintained. > > > >> The only problem is that those solar cells cast a shadow. Is there > > >> anything nearby? Oh, another tower? Won't do that other tower > > >> much good, will it? > > > >Or worse, modules around the one tower. The idea of one 8000 m2 PV disk > > >tracking the daily sun is pretty daunting. But if you break it up into > > >several smaller modules, say 100 of 80m2 each, then when the sun isn't > > >directly overhead, the modules closest to the sun are casting shadows on the > > >ones directly behind them. Space them out far enough that you can get full > > >sun on all of them for about six hours a day and you just about double the > > >distance between them. Any more than that and simple trigonometry expands > > >the spacing needed very quickly. > > > Presumably you locate a windmill where there's lots of wind, which > > will now and then blow away the solar arrays. > > That's why you put the solar cells on the windmill blades :) > > Robert I like it; blades with PVs as engineered by Robert Adsett. At least that's a constructive thought, of waste not, want not. In addition to the potential of each tower hosting as much as that 8000 m2 disk array or plate of cells that's residing well enough below those 4 MW blades, tile most every surface with those PV cells, as well as the more blade mass the better as long as those ceramic bearings hold their load. - Brad Guth -
From: Eeyore on 3 Oct 2007 08:33 BradGuth wrote: > Eeyore wrote: > > BradGuthwrote: > > > Where the hell do you think all of that solar and moon contributed > > > energy is going? > > > > The only energy we get from the moon that can be harnessed is tidal. > > > > http://en.wikipedia.org/wiki/Severn_Barrage > > has been discussed since 1925. > > More than half wrong again. Besides those vast clean teraWatts of > tidal flow energy, try a few other vast teraWatts of geothermal Not practically accessible on most parts of the planet. Iceland is just lucky. Graham
From: Eeyore on 3 Oct 2007 08:41 BradGuth wrote: > Robert Adsett <s...(a)aeolusdevelopment.com> wrote: > > > > That's why you put the solar cells on the windmill blades :) > > > I like it; blades with PVs as engineered by Robert Adsett. > > At least that's a constructive thought, of waste not, want not. Let me see. Wind turbine blades flex. Photocells break if flexed. Stupid, stupid idea. Graham
From: BradGuth on 3 Oct 2007 09:59 On Oct 3, 6:39 am, bill <ford_prefec...(a)hotmail.com> wrote: > in all fairness, using lox as an oxidizer would in theory increase the > hot side temperature of an ice, which would increase the carnot > efficiency. in addition, if both the oxidizer and the fuel were in > the liquid state, it *may* be possible to run an engine without the > intake and compression strokes, injecting both the lox and the fuel at > the top of the stroke under full compression and then igniting > quickly, and exhausting the waste gasses on the return stroke. This > would *if possible* increase the ice efficiency. > I don't know if such a thing would really work, or what its > effects on an engine would be, but its a kinda cool idea. I might > make tinkering with it a winter project. Think 2-cycle, think ceramic piston and liner, think h2o2 instead of LOx, and above all increase your life insurance to its maximum. Otherwise, with a little common sense and some dumb luck it'll work rather nicely. BTW, there's far better than piston ICE technology that's suited for this task, although the initial R&D is a whole lot more spendy. - Brad Guth -
From: John Larkin on 3 Oct 2007 10:06
On Tue, 2 Oct 2007 20:11:34 -0400, Robert Adsett <sub2(a)aeolusdevelopment.com> wrote: >In article <qji5g350cptmj32odgpri3r3hobin24fcj(a)4ax.com>, John Larkin >says... >> On Tue, 2 Oct 2007 17:59:32 -0400, "daestrom" >> <daestrom(a)NO_SPAM_HEREtwcny.rr.com> wrote: >> >> > >> >"The Ghost In The Machine" <ewill(a)sirius.tg00suus7038.net> wrote in message >> >news:3aq8t4-u38.ln1(a)sirius.tg00suus7038.net... >> >> In sci.physics, BradGuth >> >> <bradguth(a)gmail.com> >> >> wrote >> >> on Mon, 01 Oct 2007 16:19:59 -0700 >> >> <1191280799.545597.239290(a)n39g2000hsh.googlegroups.com>: >> >>> On Sep 30, 11:20 pm, The Ghost In The Machine >> >>> <ew...(a)sirius.tg00suus7038.net> wrote: >> >>>> >> >>>> Where? Oh, you must be seeing things again. In any event, anyone >> >>>> who knows chemistry can figure out the above fact. I'm still curious >> >>>> as to how you get 40 kW/m^3 from variants of solar energy. >> >>> >> >>> A 100~125 meter tall tower will take up roughly 100 m2 worth of >> >>> surface footprint at it's base, that which can't easily be utilized >> >>> for all that much other than a fluid storage tank or perhaps on behalf >> >>> whatever fluid processing that could rather easily be contained within >> >>> the somewhat less than 100 m2 interior. However, on top of this >> >>> sucker is a good 3.5~4.5 MW wind turbine, and well enough below the >> >>> blade sweep is a very large DVD like disk of those 25% efficient PV >> >>> cells (we're talking better than twice that amount if using William >> >>> Mook's multi-band and special lens enhanced PV cells) that'll track >> >>> sunrise to sunset, as well enough elevated above the local terrain and >> >>> whatever trees so that full solar benefit is easily maintained. >> >> >> >> The only problem is that those solar cells cast a shadow. Is there >> >> anything nearby? Oh, another tower? Won't do that other tower >> >> much good, will it? >> >> >> > >> >Or worse, modules around the one tower. The idea of one 8000 m2 PV disk >> >tracking the daily sun is pretty daunting. But if you break it up into >> >several smaller modules, say 100 of 80m2 each, then when the sun isn't >> >directly overhead, the modules closest to the sun are casting shadows on the >> >ones directly behind them. Space them out far enough that you can get full >> >sun on all of them for about six hours a day and you just about double the >> >distance between them. Any more than that and simple trigonometry expands >> >the spacing needed very quickly. >> >> Presumably you locate a windmill where there's lots of wind, which >> will now and then blow away the solar arrays. > >That's why you put the solar cells on the windmill blades :) > >Robert Cool. Arrange for them to spin at 60 Hz and avoid inverter losses! But solar cells are so last century. The new new thing is sun-pumped lasers. John |