asteroza + transverse   5

OSA | Study of W/HfO2 grating selective thermal emitters for thermophotovoltaic applications
Interesting, tungsten with a hafnium oxide grating over it has highly selective IR emittance, making it well matched for gallium based TPV cells
tungsten  emitter  hafnium  oxide  transverse  magnetic  polarization  surface  plasmon  shaping  IR  TPV  cell  matching  power  generator  materials  science  research  technology 
9 weeks ago 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
Panasonic develops tubes for geothermal electricity generation, waste heat recovery ‹ Japan Today: Japan News and Discussion
Something about a weird transverse thermoelectric effect being utilized by making stacking conical rings of thermoelectric materials to create a tubular, rather than planar, thermoelectric generator, which is well suited for jacketing steam or hot water pipes.
Panasonic  japan  materials  science  manufacutirng  research  technology  transverse  thermoelectric  effect  power  generator  green  energy  waste  heat  geothermal  Delicious 
july 2011 by asteroza

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