asteroza + temperature   176

Turns heat into clean electricity | Climeon
Some sort of modular waste heat power generator (rankine?)
waste  heat  recovery  low  temperature  power  generator  modular 
17 days ago by asteroza
Double-negative-index ceramic aerogels for thermal superinsulation | Science
Weird boron nitride aerogel. Good repeatable crush resistance and extreme temperature swing fracture resistance. Weird in that slightly squeezing it in one direction causes it to compact orthogonally.
ceramic  boron  nitride  aerogel  fracture  temperature  cycling  resistance  materials  science  research  technology 
4 weeks ago by asteroza
Honda presents new battery chemistry that could succeed lithium-ion
Previously, flouride-ion bats ran at 300C, so worked more like a molten salt...
Honda  fluoride  ion  battery  materials  science  research  technology  room  temperature  energy  storage 
10 weeks ago by asteroza
Trying to do low temperature delta heat exchangers via cheap polymer membranes
polymer  membrane  low  temperature  heat  exchanger  cooling  materials  science  research  technology 
october 2018 by asteroza
Trying to make fabrics that bulk up when it gets colder, to provide more insulation
thermal  responsive  temperature  reactive  fabric  textile  materials  science  research  technology 
october 2018 by asteroza
Making industrial enzymes for high temp/highly acidic environments
artificial  enzyme  high  temperature  acidity  materials  science  biology  research  technology  chemical  industrial  process  manufacturing 
october 2018 by asteroza
Cr-Mo-V-W: A new refractory and transition metal high-entropy alloy system - ScienceDirect
Chromium, Tungsten, Rhenium plus other bits metal alloy calculated to melt at 3044K. Possibly usable for molten salt nuclear reactors.
high  entropy  metal  alloy  materials  science  research  technology  temperature  refractory  computational  chemistry 
september 2018 by asteroza
Continuous-wave room-temperature diamond maser | Nature
A step up from that organic crystal maser, which was materials limited to pulse ops
room  temperature  continuous  wave  maser  materials  science  research  technology  physics  optics  oscillator  diamond  laser  pumped  defect  vacancy 
april 2018 by asteroza
Hybrid thermionic-photovoltaic converter: Applied Physics Letters: Vol 108, No 14
Advanced concept that uses a mix of thermionic and photovoltaic cells to convert high temperature heat to power. Thermionic collects electrons, PV collects protons from a hot surface.
TIPV  hybrid  thermionic  photovoltaic  power  generator  high  temperature  heat  converter  materials  science  research  technology 
august 2017 by asteroza
Working on molten silicon thermal energy storage
EU  europe  molten  silicon  boron  high  temperature  thermal  energy  storage  TIPV  thermionic  photovoltaic  conversion 
august 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
Ablation-resistant carbide Zr0.8Ti0.2C0.74B0.26 for oxidizing environments up to 3,000 °C | Nature Communications
New single phase carbide coating to resist high temps, with notable improvement in ablation resistance and what appears to be an easier manufacturing method.
zirconium  carbide  UHTC  ceramic  materials  science  research  technology  high  temperature  ablation 
july 2017 by asteroza
Low cost plasma membrane reactor to efficiently convert ammonia to hydrogen
Using a plasma field between an iron tube and palladium foil tube, ammonia can be broken down to nitrogen and hydrogen, with the hydrogen pulled through the palladium foil efficiently, resulting in very high hydrogen gas purity separation. Process is low temperature and pressure as well, though the palladium foil probably isn't cheap. Effectively an ammonia fuel reformer for a hydrogen fuel cell, allowing storage of low pressure ammonia as fuel.
hydrogen  gas  production  ammonia  converter  plasma  palladium  membrane  reactor  materials  science  research  technology  separator  separation  reformer  fuelcell  low  temperature  pressure  Delicious 
april 2017 by asteroza
decent HTS tape, in 600m rolls. Up to 2.3T mag fields, so good for turbine generators and MRI, but not high end stuff like fusion
EU  high  temperature  superconductor  HTS  tape  manufacturing  materials  science  research  technology  Delicious 
march 2017 by asteroza – Energy for all, at all times
Interesting molten silicon based thermal energy storage battery. But melt point is 1414C...
high  temperature  thermal  energy  storage  battery  TESS  molten  silicon  Delicious 
february 2017 by asteroza
[1603.01482] 373 K Superconductors
Possible new room temperature superconductor research released, but they are keeping it partially secret due to pending patent.
room  temperature  superconductor  materials  science  research  technology  Delicious 
march 2016 by asteroza
Thermoelectric Power Generation from Lanthanum Strontium Titanium Oxide at Room Temperature through the Addition of Graphene - ACS Applied Materials & Interfaces (ACS Publications)
Interesting, graphene doping the sintering powder reduced thermal conductivity but increased electrical conductivity. 2 watts/m2 at room temperature is nothing to sneeze at neither.
lanthanum  strontium  titanium  oxide  titanate  graphene  thermoelectric  power  generator  materials  science  research  technology  composite  nanocomposite  room  temperature  Delicious 
august 2015 by asteroza
Masonry from industrial waste
Interesting ambient temperature curing bricks, using boiler ash and alkali chemical curing. Regular brick manufacturing uses 1000C kilns, which use a lot of energy/fuel.
ambient  temperature  alkali  curing  building  construction  brick  boiler  ash  green  manufacturing  masonry  Eco-BLAC  Delicious 
june 2015 by asteroza
X-energy - Transformational Energy Solutions
New gas TRISO pebble bed group, tighter packing with online fuel swap, but less efficient than GA EM2 concept?
pebble  bed  TRISO  HTGR  high  temperature  gas  nuclear  reactor  research  technology  SMR  small  modular  Delicious  helium  cooled  fuel  power  generator 
may 2015 by asteroza
Unforeseen high temperature and humidity stability of FeCl3 intercalated few layer graphene : Scientific Reports : Nature Publishing Group
FeCl3 intercalated graphene (called GraphExeter) apparently has good temp and humidity properties, making it suitable for solar panels, flexible electronics, and possibly space applications
GraphExeter  iron  chloride  intercalated  FeCl3  graphene  high  temperature  performance  materials  science  research  technology  nanotechnology  Delicious 
january 2015 by asteroza
Apparently they have a good high temperature steam electrolysis SOEC that can produce hydrogen at decent efficiencies, for feeding into a RWGS conversion reactor syngas production rig, to eventually produce synthetic methane (combining syngas from the reactor with additional H2 from the SOEC), or eventually via FT, synthetic liquid fuels. They don't seem to be doing a coelectrolysis SOEC to crack steam and CO2 simultaneously in the same cell stack though.
SOEC  solid  oxide  electrolysis  cell  high  temperature  water  H2O  steam  CO2  syngas  production  synfuel  synthetic  fuel  methane  CH4  liquid  GTL  hydrogen  Delicious 
november 2014 by asteroza
Ceramic has potential in hypersonic flight, discovers an Imperial researcher
Apparently hafnium carbides can run 100C hotter than previously believed, now up to 4050C, making it interesting for spacecraft reentry systems and hypersonic aircraft coatings.
hafnium  carbide  high  temperature  ceramic  materials  science  research  technology  Delicious 
september 2014 by asteroza
K2 Energy - Executing Engineering Excellence
Apparently these batteries will be used for the US Navy's railgun work. I guess these guys have access to A123 battery tech?
lithium  iron  phosphate  battery  energy  storage  technology  high  temperature  a123  LFP  railgun  Delicious 
august 2014 by asteroza
Buy Flare Pans exclusively at Lakeland
So sort of directed heating and maybe coanda effect involved in improving heat transfer?
fluted  cookware  pan  pot  cooking  utensil  high  speed  boiling  temperature  transfer  Delicious 
july 2014 by asteroza
How to tap the sun’s energy through heat as well as light - MIT News Office
CNT absorber fronting a photonic crystal matched to a PV cell to make a new higher performance solar thermophotovoltaic power generator.
nanphotonic  photonic  crystal  solar  thermophotovoltaic  CNT  carbon  nanotube  heat  absorber  silicon  dioxide  emitter  PV  cell  high  temperature  power  generator  green  energy  materials  science  research  technology  nanotechnology  two  layer  STPV  Delicious 
january 2014 by asteroza
Neutron Absorber Material | Holtec International
New nanoparticle based metal matrix composite basket for spent fuel rods, with such high thermal conductivity that spent fuel can be stuffed into a dry cask after only 3 years in a cooling pond.
Metamic  Metamic-HT  high  temperature  aluminum  boron  carbide  metal  matrix  composite  neutron  absorber  spent  fuel  rod  basket  dry  cask  waste  storage  nuclear  materials  science  research  technology  nanotechnology  powder  metallurgy  nanoparticle  alumina  alloy  dispersoid  Delicious 
december 2013 by asteroza
Tricking your body by cooling directly at the wrist (and by extension the blood too?) to make you feel cooler.
thermoelectric  control  hardware  thermal  sensation  wrist  peltier  health  heat  human  temperature  cooler  personal  comfort  cooling  devices  wristband  medicine  electronics  Delicious 
october 2013 by asteroza
Interesting use of heat assisted osmosis as a basis for waste heat energy recovery, using gradient flow speed through a turbine to generate electricity.
accelerated  osmosis  waste  green  power  generator  low  heat  energy  recovery  temperature  Delicious 
august 2013 by asteroza
BNL Newsroom | Breakthrough Iron-based Superconductors Set New Performance Records
New high current/high magnetic field/high temperature superconductor that is iron based that beats the pants off of existing iron and cuperate superconductors. Demonstrated 1MA/cm2 critical current, 200KA/cm2 at 30T at 43K (not quite LN2 temps but close), and they think they can up the temperature by further tweaking the layering.
HTS  high  temperature  superconductor  iron  layered  composite  chalcogenide  thin  film  selenium  tellurium  pulsed  laser  deposition  cerium  oxide  materials  science  research  technology  Delicious 
january 2013 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
Proximity-induced high-temperature superconductivity in the topological insulators Bi2Se3 and Bi2Te3 : Nature Communications : Nature Publishing Group
Oh wow, improved superconductivity just by sticking a topological insulator on top of/pressing up against a cuperate. No fancy joining or bonding or chemical interaction or plasma deposition. Just touching basically, bridged by a thin layer of double sided scotch tape.
high  temperature  superconductor  materials  science  research  bondless  proximity  scotch  tape  contact  superconductivity  cuperate  topological  insulator  Delicious 
september 2012 by asteroza
Mechanically strong, flexible poly... [ACS Appl Mater Interfaces. 2012] - PubMed - NCBI
Potentially usable for inflatable heatshield balloon/ballute covers, possibly as part of the integrated skin itself. Also, since it's flexible, it may be a useful material for integration into flexible cryogenic tanks, for use as prepacked collapsible tanks for an orbital fuel depot.
flexible  aerogel  polyimide  aromatic  triamine  nanoporous  porous  materials  science  research  technology  nanotechnology  high  temperature  insulation  film  Delicious 
august 2012 by asteroza
ReGen Power Systems - Low Temperature Waste Heat Stirling
Some sort of high efficiency low heat/waste heat technology. They have 250 degree waste heat engine designed for industrial waste heat, and a 100 degree version designed to mate with steam condensers.
low  temperature  waste  heat  recovery  stirling  cycle  power  generator  green  energy  Delicious 
august 2012 by asteroza
ULTRAMET - Advanced Materials Solutions
Apparently involved with a new high temp noise suppression foam made from hafnium carbide/silicon carbide that ca be stuffed directly into a combustor to provide combustion noise suppression. The foam has high permeability, allowing gases and combustion to move freely, and the structure helps to create uniform combustion. Though I can't imagine this being useful for any high speed gas /liquid fuel combustors/engines, but the press releases talked about jet engines so maybe it actually can?
metal  ceramic  foam  high  temperature  noise  suppression  materials  science  research  technology  heat  exchanger  rhenium  solar  thermal  rocket  propulsion  space  thruster  Delicious 
may 2012 by asteroza
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