asteroza + water   377

Implications of Climate Change for the US Army
TL;DR no power and water is going to screw things badly in 20 years for the military

Though the military itself is open to SMR reactors, which could easily provide power, water via desalination, and even synthetic fuels for self sufficiency in those conditions.
climate  change  military  threat  modeling  power  water 
october 2019 by asteroza
Self-sustained biphasic catalytic particle turbulence | Nature Communications
Adding a little hydrofluoroether (HFE) organic solvent to a water based turbulent heater exchanger ups heat transfer 5x because the bubbling action assisted by the HFE pulls new cold liquid to the heat exchanger surface
hydrofluoroether  HFE  turbulent  water  heat  exchanger  cooling  research  technology  transfer  turbulence  active  particle  agitation 
august 2019 by asteroza
Seatricity | Wave Energy
A seawater pumping wave point absorber power generator
wave  power  generator  buoy  seawater  water  pump 
april 2019 by asteroza
Zero Mass Water - Perfecting Your Water
Claim to be a water harvester/dehumidifier using active dewpoint raising and passive condensation. Which sounds fishy...
water  harvester  scavenger  dehumidifier  moisture  capture 
march 2019 by asteroza
Using a weird linear pelton water turbine to generate power from low head water sources
low  head  water  hydroelectric  linear  pelton  turbine  belt  drive  power  generator 
march 2019 by asteroza
Home - Lucid Energy
Stuffs a spherical (savonis? darrius?) turbine in water pipes for low head hydroelectric power generation at the edge of the water distribution network, beyond pressure vaults?
low  head  hydroelectric  water  turbine  power  generator  spherical  pipe 
march 2019 by asteroza
Heatworks | Reinventing the way the world heats and uses water –
So they are directly running electricity through the water, via a dynamically controlled array of graphite electrodes to manage the resistance in the circuit, to ohmicly heat the water on demand. They have guard ground electrodes to keep the thing from electrocuting you downstream.
tankless  water  heater  ohmic  array  heating 
march 2019 by asteroza
Techology & Fluidification | Ferox Advanced Vehicles
Some sort of new hydraulic drive/transmission system, using 95% water and at a lot lower pressure than conventional hydraulics.
water  working  fluid  hydraulic  drive  transmission  automotive  research  technology  in-wheel  motor 
december 2018 by asteroza
Fujitsu General Developes Water-cooled Neck Cooler Using Peltier Devices | NIKKEI XTECH
allegedly working people generate too much heat for normal direct air cooled peltier neck coolers, thus needing water cooling to a larger belt worn radiator/battery pack.
personal  air  conddition  cooler  peltier  water  cooled  radiator  hardware  electronics  devices 
november 2018 by asteroza
Orbit Fab to test refueling technology on ISS -
Hrm, testing a cubesat class water tanker. Implies a cubesat class water tanker refueler for other cubesat class sats using water for propellant?
space  refueling  water  tanker  refuel  technology  research  orbital  propellant  depot 
november 2018 by asteroza
Team JMCC WING -Water Abundance XPRIZE Competition | Indiegogo
Some sort of low eight high torque wind turbine using fabric blades (and fabric duct), seems to use a pole/wire tensegrity structure
tensegrity  structure  high  torque  wind  turbine  power  generator  fabric  blade  atmospheric  water  fog  collector 
october 2018 by asteroza
Scotrenewables Tidal Power Ltd, Orkney, the world leader in the development of floating tidal stream and run-of-river turbines.
Interesting tidal stream turbine power generator, using a long boat-like pontoon hull and a suspended forward facing rotor
tidal  current  stream  water  turbine  power  generator  scotland  EU  europe 
august 2018 by asteroza
The optical duality of tellurium nanoparticles for broadband solar energy harvesting and efficient photothermal conversion | Science Advances
Putting the tellurium nanoparticles directly in the water sounds like a bad plan for an industrial process, but this might lead to a better solid absorber for a thermal receiver?
tellurium  nanoparticle  broadband  solar  absorber  materials  science  research  technology  nanophotonic  photothermal  water  evaporation  seawaer  thermal  desalination  distillation 
august 2018 by asteroza
The water footprint of water conservation using shade balls in California | Nature Sustainability
So reservoir shade balls might be a net negative unless they stay floating in the lake for a while (say 3 years of drought)
reservoir  shade  ball  water  conservation 
july 2018 by asteroza
Quidnet Energy
Using shale reservoirs as a pressure vessel of sorts to store high pressure water, sorta like CAES or pumped hydro
underground  shale  water  pressure  energy  storage 
june 2018 by asteroza
This is borderline cooling version of a perpetual energy generator, but this is an interesting take on fog net concepts. By lightly ionizing the fog and the capture mesh/net, you can get fog droplets to condense better on the net and exceed normal fog nets (which capture 1-3% of passing droplets).
cooling  tower  fog  net  mesh  droplet  capture  ion  ionizing  water  vapor  electrostatic  space  charge  collection 
june 2018 by asteroza
Cold Vapor Generation beyond the Input Solar Energy Limit - Song - - Advanced Science - Wiley Online Library
Interesting trick via orientation and materials choices, vapor is below ambient, allowing easy condensation collection
solar  water  distiller  distillation  purification  evaporator  low  cost  materials  science  research  technology 
may 2018 by asteroza
RotoLyzer | RotoBoost
Some kind of mechanism to rotate the electrodes in an electrolyzer to increase reaction rates? Or increase density gradient against the electrode to make gas separation easier/faster?
RotoLyzer  rotating  alkaline  water  electrolyzer  electrolysis  hydrogen  gas  production 
march 2018 by asteroza
ThinAir - High Efficiency Water Condensing Biomembranes
High performance surface condensation materials for extracting water from air
water  generator  dehumidifier 
march 2018 by asteroza
Photosystem II Subunit S overexpression increases the efficiency of water use in a field-grown crop | Nature Communications
Single gene tweaks drops water usage by 25% but keeps yield up apparently for tobacco, should work for other plants.
GM  genetically  modified  plant  low  water  usage  efficiency  agriculture  biology  science  research  technology 
march 2018 by asteroza
Enhancing Mechanical Properties of Pervious Concrete Using Carbon Fiber Composite Reinforcement | Journal of Materials in Civil Engineering | Vol 30, No 3
permeable concrete normally sucks, but throwing ground up waste carbon fiber into it makes it strong enough for actual usage, particularly for road/ground cover where you want rain water to pass though into the ground reasonably quickly, rather than collecting pollution then ending up in storm sewers..
permeable  porous  carbon  fiber  reinforced  concrete  materials  science  research  technology  recycling  water  management  building  construction 
march 2018 by asteroza
Floating membraneless PV-electrolyzer based on buoyancy-driven product separation
Using asymmetrically catalyst coated mesh mebranes at small separation distances, vertically hanging mesh electrodes can perform electrolysis without a membrane and get good product separation, using natural gas buoyancy. Though this skews to tall rigs.
membraneless  asymetric  coated  electrode  mesh  water  electrolysis  electrolyzer  hydrogen  gas  production  materials  science  research  technology 
december 2017 by asteroza
Micromachines | Free Full-Text | Analysis of the Micromachining Process of Dielectric and Metallic Substrates Immersed in Water with Femtosecond Pulses
using femtosecond laser pulses at a focalpoint in water just above a surface allows etching via shockwave/explosive force at high precision
femtosecond  laser  shockwave  etching  wet  water  3D  printing  fabbing  manufacturing 
august 2017 by asteroza
Artificial Glaciers of Ladakh | The Ice Stupa Project
Forcibly making more ice/glacier in winter from winter stream water to save for planting season.
artifical  glacier  ice  water  storage  agriculture 
june 2017 by asteroza
REDstack heeft als doel het ontwikkelen en vermarkten van de RED technologie.
Not pressure retarded osmosis, but reverse electrodialysis power generation using freshwater/seawater salinity gradients.
reverse  electrodialysis  power  generator  green  energy  freshwater  seawater  water  salinity  gradient  Delicious 
may 2017 by asteroza
Water harvesting from air with metal-organic frameworks powered by natural sunli...
Hrm, seems like as long as you have sun and a front end filter for the air to keep the MOF from gunking up, this could work indefinitely...
zirconium  MOF  metal  oxide  framework  air  water  humidity  capture  materials  science  research  technology  heat  solar  harvester  Delicious 
april 2017 by asteroza
Australia's Water Curtain Stop Signs Are A Great Idea
Giant stop sign is giant, but really requires good positioning to not blind a driver. That, and proper drainage to not freeze...
low  height  tunnel  bridge  warning  water  curtain  projected  image  stop  sign  signage  Delicious 
february 2017 by asteroza
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