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You can get 2-axis solar with very high utilization by building giant floating lily pads the rotate about vertical axis, and with each panel inclination controlled by pneumatic or water hydraulic control for horizonal axis control. Low cost 2-axis solar, free land, reduced evaporation, no curtailing, ...
SpaceX must use this for starship long range commercial passenger travel instead of dirty methane...
There is an old laser driven fusion concept that is looking promising with new lasers. The fusion energy directly produces electricity. Now imagine that the two are combined to create a "simple" air vehicle with incredible range and hypervelocity.
This is retarded. Coal is near perfectly sequestered Carbon. And then the carbon engineering scammers say it's cost effective to remove it from air defying the law of entropy. Rulled by idiots, human are doomed.
The Wright's engine tech can be used with hydrogen or ammonia derived power for long haul.
A standard measure of cost should be $ per kwh per cycle
Mandatory V2X in phones could accelerate adoption.
1 cylinder Rex with bigger battery would be better
Nuclear power has probably been secretly obstructed by Exxon funding. Kill the competition with uneven EPA enforcement and regulations.
For medium and light trucks also please!!!
In the past I would not have not liked the idea that now makes sense, lower speed limits to reduce co2 emmisions. Eventually EV's and autonomous driving tech can allow an increase again.
Driving in LA we frequently see gross polluting heavy duty diesel trucks belching black smoke. If they where at least hybrid, they could greatly reduce the black smoke during heavy stop and go traffic. Always driving with recirculation on is not a long term solution. FINALLY 35 YEARS LATER THEY MIGHT START TESTING THE WORST POLLUTERS! Next important target is brake dust!
0-100% capability with degradation comparable to Ecker 40-60% is 5X long life energy density improvement. Perhaps a bit more development will expand the operating temperature range.
A CO2 to CNT converter using exhaust energy and waste heat to manufacture spools of CNT is needed. Plenty of space and weight capacity on large trucks to fit it. As long as it weighs less than the long range tons of Li batteries needed. My guess is electrified highways for primary transportation corridors are probably most cost effective. Eventually Li batteries advances will dominate the remaining long range trucking market. spool I it might be possible to
All the arguments put forth in this article are so weak and wrong in the context of climate emergency. Engineer-Poet has good puts, to which I would like to add: (1) Going towards zero emissions via BEV, not 50% as these fuel do, is essential to drawdown CO2 (2) In 1000 years, if CO2 PPM is too low and we still don't have better tech, this will make sense, i.e. probably never. (3) Who is funding this useless research? I propose this totally feasible transportation emergency action: (1) Ban non-hybrid vehicle sales after 2023 (2) Require ALL new vehicles to have a minimum electric only range of 50 miles to cover 95% of needs. Commercial use should be a higher standard to not leave any low level loopholes. (3) Carbon Fee and dividends ASAP to reflect the true external cost of removing CO2 from air.
No mention of how much more expensive than leaving the Fossil fuels in the ground and replacing with renewables. Subsides for entropy.
Until batteries become very inexpensive, energy density is not that critical. Wasting battery capacity with poor aerodynamics make a bigger difference. More relevant to EV performance and practicality: kWh/CdA = proxy for worst case highway range, Tesla model 3 leads be a wide margin (Storage volume)/CdA= storage efficiency, again Tesla model 3 leads by a wide margin. Further progress in CdA can be made by replacing rearview mirrors with cameras, rear wheel covers, and more aerodynamically optimized design instead of pure style design
Further optimization may yield excellent cycle life. The important point here is improvement achieved with an unoptimized design and process
There is a huge market for transport if it can be made small enough, perhaps starting with big trucks.
The 2050 "clean?" grid assumption will probably be completely wrong. Why? Demographics will for a faster clean transition. HVDC Supergrid, new PV and nuke tech, ... Hybrid with better than Chevy Volt like capability should be minimum allowed standard nationwide. Why? Much less brake pollution, and city energy consumption.
What maximum temperature can these Si TEGs withstand? If as high as Si, these could have great potential where temperature differentials of 100 or 1000 can be maintained.
Two other very import factors: (1) Newer more efficient mid range airplanes have reduced fuel consumption a lot over older airplanes. (2) Shorter flights carrying less fuel are lighter and therefore burn less. Read about the breguet range equation... Long range airplanes burn more fuel to carry extra fuel and structure. All airlines could reduce their carbon footprint easily by flying with navigation computer set at Cost Index = 0. Carbon fees will encourage this. Eventually the greatest carbon reduction could be by flying electric powered airlines with multiple stops. Much of the decent energy can be recovered, or utilized to glide to the destination.
BIO Gas = Bovine Intestinal Output Gas Perhaps it could be easily captured and concentrated using a tent that siphons the lighter methane gas from the top.
30kw/48V=625 AMPS! There must be a lot of batteries in parallel or supercaps, and beefy wires!