asteroza + graphite   26

Argonne technology puts solar power to work all night long | Argonne National La...
Graphite foam pores holding phase change salt for thermal storage improve thermal transfer for thermal storage. For steam turbine linkage, use magnesium chloride, for higher temperature SCO2 turbines use sodium chloride.
graphite  foam  porous  structure  thermal  storage  CSP  solar  energy  SCO2  cycle  phase  change  PCM  salt  materials  science  research  technology  Delicious 
october 2016 by asteroza
Steam from the sun
So at 10x solar concentration, the surface cover composite sheet composed of the graphite flake thermal absorber/boiler coupled to an underlying buoyant porous carbon air foam, creates steam pretty well. I assume the insulating factor of the carbon air foam reflects more heat into the boiler region to improve efficiency, rather than letting heat travel through and warm the bulk water.
graphite  flake  porous  structure  carbon  foam  buoyancy  buoyant  composite  steam  generator  solar  thermal  green  energy  concentrator  concentrating  Delicious 
july 2014 by asteroza
Microwave Weaponry, High Power (HPM) - HPM capabilities, HPM uses
Interesting anecdote about using carbon graphite coils as part of of a high powered microwave weapon. Though it claims they generate the EMP, so is it a single shot pulsed power supply then?
carbon  graphite  coil  pulsed  pulse  power  geenrator  EMP  HPM  DEW  military  weapons  research  Delicious 
october 2012 by asteroza
Room Temperature Superconductivity Found in Graphite Grains - Technology Review
Unfortunately, this can not be used as a bulk material, but there's definitely a surface effect of some kind at the grain boundaries.
room  high  temperature  superconductor  materials  science  research  technology  superconductivity  graphite  powder  grain  boundary  interface  surface  effect  Delicious 
september 2012 by asteroza
Radiator Graphite-Foam.pdf (application/pdf Object)
Interesting concept for using airfoil pressure differential to force air through a heat exchanger embedded in the rear third of an airfoil, while having low frontal drag area. As noted in the PDF, for vehicle applications there will still be a need for an auxiliary fan when stopped, which likely means the airfoil will still be in the engine bay or embedded in the hood to utilize the forced air fan.
Open  pore  porous  high  thermal  conductivity  graphitic  graphite  foam  lightweight  radiator  heat  exchanger  hardware  research  control  materials  science  technology  filetype:pdf  media:document  Delicious 
may 2011 by asteroza
Molten-salt based accelerator-driven subcritical reactor
Woah! The energy costs for the proton accelerator have dropped a lot, so a subcritical reactor can be made critical by the neutrons from the accelerator at acceptable efficiencies. It's the conceptual equivalent of slapping a turbocharger on a net negative engine to turn it positive. If it requires a superconducting accelerator, you could make the argument for a superconducting generator on the turbine generator, which would lead to an argument for an on-site ASU to supply LN2...
ADNA  GEM*STAR  ADS  accelerator  driven  subcritical  molten  salt  graphite  nuclear  reactor  design  concept  power  generator  green  energy  Delicious 
april 2010 by asteroza
100202.pdf (application/pdf Object)
Kaneka has been busy with graphite based thermally conductive yet electrically insulating plastics, with one type getting 300% performance over copper for thermal conductivity (though it's not obvious if the 300% material is electrically insulating)
Kaneka  electrically  insulating  electrical  insulator  thermally  conductive  thermal  filler  graphite  polyester  polymer  PET  resin  Hyperite  plastic  japan  materials  science  research  technology  filetype:pdf  media:document  Delicious 
march 2010 by asteroza
0314.pdf (application/pdf Object)
I wonder how graphite flouride batteries compare to the molten liquid electrode battery research?
graphite  calcium  flouride  battery  energy  storage  high  temperature  materials  science  research  filetype:pdf  media:document  Delicious 
february 2010 by asteroza

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