asteroza + chamber   15

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
EN-AVT-150-08.pdf (application/pdf Object)
Interesting continuous wave detonation engine design. Basically you have a shockwave running around in circles (well, a spiral of sorts) in an open ended annular space, with careful injection of propellant just before the wave arrives at a particular point in the injector ring on one end. Similar to a PDE engine, in that you need high speed pulsed injection just before the detonation wave arrives on the ring, and you have this spiral output that resembles a PDE pulse output.
rotating  rotary  RDE  RWDE  continuous  spin  detonation  wave  engine  CDWE  CDWRE  TDW  transverse  spiral  PDE  pulse  engine  propulsion  research  space  aerospace  development  annular  combustion  chamber  Delicious 
august 2012 by asteroza
The Pulse Combustion Tesla Turbine
Okay, this is a little weird, but potentially interesting as a high rpm motor. You have a pulsejet combustion chamber feeding a tesla turbine to extract power. Since the pulsejet is a PDE, and thus shockwave based, you potentially have near complete combustion without having a precompressor. Hrm, I wonder if a RamGen engine could feed it's disk's exhaust into a counterrotating coaxial tesla turbine for secondary power extraction (the tesla turbine could be direct geared to counterrotate with the disk rotor since the tesla turbine should be able to rotate at the same kind of speeds)?
hybrid  PDE  tesla  turbine  gas  pulsejet  pulse  detonation  engine  chamber  motor  combustion  shockwave  shock  Delicious 
february 2011 by asteroza

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