asteroza + nuclear   354

A Dusty Plasma Based Fission Fragment Nuclear Reactor/Rocket - ppt video online download
Uses nano particles of fuel, so works sorta like a gas reactor but with less headaches in theory...
DPFFRE  dusty  plasma  fission  fragment  nuclear  reactor  rocket  nanoparticle  fuel 
august 2019 by asteroza
(PDF) Efficient, Visible Photon Sources Driven by Nuclear Reaction Products and Their Coupling To Remotely-Located Solid-State Lasers
Using nuclear reactors as photon pump sources for solid state lasers. Overall fission to laser efficiencies of 7 to 35% thanks to a fluorescer intermediary and green Nd:YAG:Cr solid state laser
nuclear  photon  source  solid  state  laser 
august 2019 by asteroza
(PDF) Concept of an Accelerator-Driven Advanced Nuclear Energy System
This is that chinese ASDR concept using solid micrograins as a pumpable solid coolant that doubles as the neutron spallation target for the particle accelerator. Apparently there were concerns over the thermal shock from a beam trip event requiring a more robust neutron target.
china  ADANES  ADSR  accelerator  driven  subcritical  nuclear  reactor  solid  grain  cooling  coolant  neturon  spallation  target 
august 2019 by asteroza
Nuclear Propulsion Along Inland Waterways
This is actually an argument in favor of mobile thermal batteries with their heat engines, and a recharging infrastructure (which preferably uses small nuclear heat sources). Fireless steam locomotives are still in use in select industries that use a large steam vessel recharged by an external steam source, but newer thermal batteries could improve on things.
mobile  thermal  battery  energy  storage  marine  propulsion  steam  engine  SMR  nuclear  reactor  heat  source 
july 2019 by asteroza
Another helium gas cooled reactor, but with a traditional steam backend
pebble  bed  helium  coolant  gas  nuclear  reactor  power  generator  steam  HTGR 
march 2019 by asteroza
Material for New-Generation Atomic Reactors Developed in NUST MISIS
New steel-vanadium-steel layered composite might be good for nuclear reactor fuel rod tubes
russia  nuclear  fuel  rod  radiation  heat  resistant  steel  vanadium  composite  alloy  metal  metallurgy  materials  science  research  technology 
march 2019 by asteroza
Working on a hybrid fusion-fission reactor, perhaps a subcritical fission reactor with neutrons supplied by the fusion component?
hybrid  fusion  fission  nuclear  reactor  subcritical  power  generator  research  technology 
march 2019 by asteroza
Mitsubishi Estate Invests in 'New Hydrogen Energy' Startup - News - Solar Power Plant Business
Wait a sec, nuclear transformation via transmutation to produce hydrogen? Like the hydrino thing? As in LENR?
japan  LENR  nuclear  hydrogen  production 
february 2019 by asteroza
The TRISO pebbles are immobilized inside the thick walls of a graphite tube with graphite powder, but one would worry about TRISO pebble shifting/settling within the powder area.
india  thorium  lead  bismuth  liquid  metal  coolant  eutectic  TRISO  fuel  pebble  nuclear  reactor 
december 2018 by asteroza
The Nuclear Power Dilemma (2018) | Union of Concerned Scientists
So a major environmental group is still opposed to new nuclear, but now officially concedes existing nuclear is needed for a transition to a renewable energy future. Practical choice of the lesser of two evils (nukes vs climate change itself)
nuclear  advocacy 
november 2018 by asteroza
On the Use of a Pulsed Nuclear Thermal Rocket for Interplanetary Travel | 52nd AIAA/SAE/ASEE Joint Propulsion Conference
Fission pulses do neutron heating of hydrogen propellant to plasma conditions, but you need to liquid metal cool the fuel. Neat result is propellant can get hotter than the fuel due to neutron flux. Though a NTER strikes me as easier to implement...
pulsed  nuclear  thermal  rocket  engine  space  propulsion  research  technology  fission 
october 2018 by asteroza
Holtec International - A Generation Ahead by Design
Apparently working on a hybrid laser arc welding system for use on nuclear vessel welding. Using the laser to make an ionization path for the arc to better control the arc perhaps?
hybrid  laser  arc  welding  research  technology  SMR  nuclear  reator  vessel 
july 2018 by asteroza
Turbo Rocket 8Jul18.pptx - Google Drive
Bringing back the NTTR for another round, this time it looks like it's taking the immense heatsink advantage of LH2 to run a fan/compressor for a SERJ and the turbopumps for an otherwise conventional rocket engine pack. Sorta conceptually similar to RocketLabs doing an end-run by using an electric motor to boost a conventional rocket motor that would have been limited to pressure fed or gas-generator.
NTTR  SCTR  nuclear  thermal  staged  combined  cycle  rocket  engine  space  propulsion  research  technology  SERJ  combustion  supercharged  air  augmented  multimode 
july 2018 by asteroza
High power density nuclear battery prototype based on diamond Schottky diodes - ScienceDirect
High density, but needs nickel-63. The diamond energy conversion cells may be usable for carbon-14 use as well however.
betavoltaic  nickel-63  isotope  nuclear  battery  energy  storage  power  generator  russia  diamond  converter  conversion  cell  materials  science  research  technology 
june 2018 by asteroza
Special Purpose Nuclear Reactor (5 MW) for Reliable Power at Remote Sites Assessment Report
Report on a brayton air cycle turbine cooled reactor, aka the MegaPower variant of the KiloPower/KRUSTY reactor design
nuclear  reactor  brayton  cycle  air  turbine  cooled  cooling  research  technology  MegaPower  KiloPower 
may 2018 by asteroza
Kilopower | NASA
KRUSTY results look good, but really need that lunar demo to get everyone onboard
nuclear  power  generator  space  infrastructure  research  technology  KiloPower 
may 2018 by asteroza
Army-led effort demos new battery that could provide alternative energy source | Article | The United States Army
ADELPHI, Md. -- A multinational research team, led by Army scientists, successfully induced a controlled release of stored isotopic energy using a physical effect involving atomic electrons -- an idea proposed more than 40 years ago but never before demonstrated experimentally.
nuclear  isomer  battery  energy  storage  materials  science  research  technology  molybdenum  isotopic 
february 2018 by asteroza
Milestone for new LEU research reactor fuel
I think the bigger takeaway may be the fuel design, moving from a single hex rod to a series of tightly packed plates, which is intended for reactor uprate projects using existing fuel assembly dimensions.
nuclear  reactor  research  technology  fuel  plate  HEU  LEU  hexagon  packed 
january 2018 by asteroza
Fission-activated laser as primary power for CW laser propulsion
This seems to go over the FALCON nuclear pumped laser reactor as a 10MW prototype for a laser thermal beamed power SSTO.
laser  thermal  beamed  power  SSTO  rocket  space  nuclear  pumped  reactor 
december 2017 by asteroza
FALCON reactor-pumped laser description and program overview (Conference) | SciTech Connect
This is circa 1989-1991, and seems to feel a single laser/reactor complex can get to 100MW and have higher efficiency. Though beam quality will be an issue due to gas gain medium.
nuclear  pumped  continuous  wave  laser  reactor  fission  fragement 
december 2017 by asteroza
Mobile Energy Depot Feasibility Study - Summary Report
So the US Army studied a mobile energy depot concept, basically a portable nuclear reactor and a synthetic fuel production facility, to cut the logistical trail of a military on the move. Emphasis on a hydrogen fuel cell logistics train with hydrogen, run via a liquid metal cooled reactor (derivative of the ANP nuclear aircraft engine reactors).
army  military  mobile  energy  depot  portable  nuclear  reactor  synfuel  synthetic  fuel  production  power  generator  research  technology 
december 2017 by asteroza
Pure lead cooled (not eutectic) uranium oxide reactor design, using new aluminum coating for the coolant systems
Sweden  uranium  oxide  lead  cooled  nuclear  reactor  power  generator  materials  science  research  technology  aluminum  surface  coating  metal  corrosion  resistance 
november 2017 by asteroza
Self-organization of helium precipitates into elongated channels within metal nanolayers | Science Advances
Strange helium movement in nanocomposite metals, instead of independent bubbles, they form up and start tunneling sideways into vascular networks within nanocomposite layers
metal  nanocomposite  helium  migration  precipitation  materials  science  nuclear  research  technology 
november 2017 by asteroza
Phys. Rev. Lett. 106, 162501 (2011) - Proposal for a Nuclear Gamma-Ray Laser of Optical Range
Interesting concept for an externally pumped nuclear gamma ray/vacuum UV optical range laser
nuclear  physics  research  gamma  ray  nucleon  light  optical  UV  laser 
november 2017 by asteroza
Quarks fuse to release energy | Nature
Quark fusion pretty powerful, but needs heavy baryons and goes poof quick so not practical on it's own. But, with a 138MeV bandgap, could this be a used for a quark laser (similar to a nucleon laser)?
quark  fusion  heavy  baryon  physics  research  technology  theoretical  nuclear 
november 2017 by asteroza
NRC: Current Event Notification Report
NRC current daily reports of incidents. Usually nothing scary, just garden variety screwups and accidents...
NRC  incident  report  status  nuclear  safety 
september 2017 by asteroza
MISSILEMAP by Alex Wellerstein
Missile path simulator, for all your survivalist needs...
ICBM  missile  path  map  military  nuclear 
august 2017 by asteroza
Patent US20160027536 - Mobile heat pipe cooled fast reactor system - Google Patents
MegaPower, a heat pipe cooled small nuclear reactor, based on the KiloPower work that recently got funded by NASA. Not much comment on the final power conversion system, but heavily implied to be open air cycle brayton. Intended for places like forward bases (FOB)
MegaPower  KiloPower  heatpipe  cooling  cooled  nuclear  reactor  research  patent  LANL  container  containerized  modular  small 
july 2017 by asteroza
OSF | Condensed Publication DRAFT- HOLOS Design 06 23 2017 .pdf
From the designer of CAESAR, a new air cooled nuclear reactor design the fits in a cargo container
pebble  bed  high  temperature  nuclear  reactor  brayton  cycle  power  turbine  generator  air  cooling  compact  container  containerized  subcritical  SMR  modular 
july 2017 by asteroza
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