asteroza + vacuum   47

Harnessing Heat Beyond 200 °C from Unconcentrated Sunlight with Nonevacuated Transparent Aerogels | ACS Nano
Substituting a highly transparent aerogel cover instead of glass for vacuum insulated solar thermal receivers to prevent heat emission back out
transparent  aerogel  materials  science  research  technology  solar  thermal  vacuum  receiver  cover  glass  alternative 
10 weeks ago by asteroza
Advanced Technologies – Cambridge Vacuum Engineering
Semi-portable electron beam welder that uses a local vacuum over the weld site, Cammel Laird is trialing it for shipbuilding applications...
electron  beam  welder  local  vacuum  manufacturing  technology 
april 2019 by asteroza
Flight Rail Corp - Home
Similar to the Aeromovel system in south america
VECTORR  vacuum  tube  train  railway  vehicle  transportation  piston 
june 2017 by asteroza
Storing energy at sea - Forschung Energiespeicher
Recent practical testing of using vacuum style concrete spheres at depth in underwater scenarios to store energy, by pumping seawater in/out of the sphere. Had a practical test to 100m, current pump/turbine tech limited to 700m...
pumped  hydroelectric  power  generator  underwater  vacuum  concrete  sphere  Fraunhofer  storage  energy  StEnSEA 
march 2017 by asteroza
Radiative cooling to deep sub-freezing temperatures through a 24-h day–night cyc...
New record, but requires shading from direct sunlight, and a vacuum chamber, and a zinc selenide emission window on the vacuum chamber wall. But 37 degrees below atmospheric ambient is pretty damn good.
atmospheric  IR  window  heat  rejection  vacuum  chamber  zinc  selenide  cooling  Delicious 
december 2016 by asteroza
Photoemission-based microelectronic devices : Nature Communications
Using lasers on gold nanoparticle mushroom shapes to create semiconductorless vacuum tube transistors.
laser  assisted  photoemission  vacuum  tube  transistor  research  technology  Delicious 
november 2016 by asteroza
Elon Musk's high-speed Hyperloop train makes more sense for Mars than California
Well, on mars, you could level/grade the right-of-way and lay down a sintered halfpipe, which gets you most of the way to a hyperloop configuration, since ambient atmosphere is pretty low. Use the same sucking configuration to supply air to the hoverpad feet, and exhaust to atmosphere, obviating the need for cooling exhaust air.
hyperloop  vacuum  train  mars  vehicle  transportation  infrastructure  space  tubetrain  Delicious 
july 2015 by asteroza
Whooshh - Home
So these guys made a fish cannon. Apparently spawning salmon seem quite willing to get into the thing too.
fruit  fish  salmon  cannon  high  speed  animal  transport  vacuum  tube  Delicious 
august 2014 by asteroza
JumpStartFund - Ideas Powered by the Crowd
HTT is apparently going to build a 5 mile test track in Quay Valley, California.
crowdfunding  hyperloop  research  technology  vacuum  train  capsule  vehicle  transportation  crowdsourcing  Delicious 
april 2014 by asteroza
The Very High Speed Transit System | RAND
Old RAND report for a maglev vactrain, for comparison to Hyperloop
tube  maglev  resaerch  capsule  vehicle  train  transportation  RAND  infrastructure  vacuum  pod  Delicious 
august 2013 by asteroza
Hyperloop Collaboration | Free software downloads at SourceForge.net
Somebody decided to throw up Hyperloop on sourceforge, to take Elon at his word regarding it being an open source hardware design.
concept  hardware  tube  capsule  vehicle  opensource  transportation  Hyperloop  train  infrastructure  vacuum  design  pod  Delicious 
august 2013 by asteroza
Very High Speed Transit System
Interesting bit on a possible nuclear subterrene, a tunnel boring machine using an high heat annular cutting face, which melts the rock and seals the tunnel, while passing over a smoothed out rock core that can be cut into large blocks for debris removal and transport.
technology  rock  study  architecture  transportation  transit  megaproject  mass  melting  megaengineering  VHST  boring  train  vacuum  construction  melt  pod  subterrene  vactrain  RAND  machine  nuclear  TBM  megastructure  resarch  tunnel  Delicious 
june 2013 by asteroza
NASA - Robotic Asteroid Prospector (RAP) Staged from L-1: Start of the Deep Space Economy
The demo of vacuum mining techniques and the combined cycle solar thermal/solar electric propulsion is interesting. Run a very hot solar brayton cycle turbogenerator, with waste heat dumped via a large radiator, or a thermal heat exchanger rocket chamber nozzle.
NASA  RAP  EML1  L1  robot  asteroid  prospector  vacuum  mining  space  infrastructure  research  combined  cycle  solar  thermal  electric  propulsion  Delicious 
september 2012 by asteroza
Envac - Sustainable vacuum waste collection systems
Giant vacuum pipe networks for hauling trash in high density districts.
Envac  municipal  waste  refuse  trash  garbage  vacuum  pipeline  haulage  network  transport  hardware  pneumatic  Delicious 
june 2012 by asteroza
Thinner thermal insulation - Research News December 2011 - Topic 2
Using some kind of high end barrier film, wrapping around stuff that sounds similar to aerogel? I wonder if this has space MLI applications?
Fraunhofer  VIP  vacuum  insulation  panel  heating  cooling  thermal  management  materials  science  research  technology  Delicious 
december 2011 by asteroza
Thermal Conservation technologies
Primitive versions of this have been available to yacht owners.
VIP  vacuum  insulation  panel  heating  cooling  technology  Delicious 
september 2011 by asteroza
Home - memsys
These guys made a cargo container system, that carries all it needs to do solar thermal seawater desalination, including the solar thermal arrays!
memsys  thermal  membrane  separation  separator  solar  seawater  water  desalination  chemical  processing  technology  materials  science  vacuum  effect  distillation  purification  Delicious 
april 2011 by asteroza
NASA - From Nothing, Something: One Layer at a Time
This might have application for structures than can handle having specific materials properties of a continuous melt metal, and for prevention of oxide formation, as well as the mentioned advanced composite structures.
NASA  EBF3  electron  beam  3D  printer  vacuum  fabber  fabbing  metal  melt  Delicious 
october 2009 by asteroza
Drinking Water From Air Humidity
Unlike traditional dew collectors, this does not require a thermal gradient or a low side temperature below the dewpoint, so this can be used in really hot places provided you can provide the electricity for the vacuum pump for the evaporator, the brine lift pump, and ancillary equipment
Fraunhofer  hygroscopic  brine  vacuum  Water  distillation  humidity  recovery  renewable  air  mining  moisture  absorption  green  utility  solar  thermal  evaporation  evaporator  Dune  technology  Delicious 
june 2009 by asteroza

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