asteroza + compressed   43

Booby trap a shortcut with a backdoor
fancy pants compression/encoding directly in a shortcut LNK file
security  hacking  pentesting  compressed  payload  powershell  VBscript  C#  shortcut 
may 2018 by asteroza
Terark/terarkdb: TerarkDB is a high performance database with the best compression
interesting database using context aware compression with point accessible zip formatting to boost random reads, normally runs as a RocksDB compatible submodule/engine
china  dabatase  software  RocksDB  engine  compressed  data  compression  point  accessible  ZIP 
june 2017 by asteroza
Rocket Fuel Pump | Designed to Cost Effectively Eliminate Flight Failures
Interesting turbopump running on stored high pressure pump drive gas. Wonder how that trades against a hot steam tank with rocket nozzle boosted heating, or a Li-ion battery and an electric turbopump...
reciprocating  pistonless  compressed  gas  rocket  engine  fuel  pump  turbopump  hardware  space  propulsion  Delicious 
october 2015 by asteroza
AOE Accumulated Ocean Energy Inc - Creating a safe, clean energy for all on Earth.
Using a wave buoy based pump to compress air for a UWCAES setup. Problem is the heat loss (since it would be hard to recover), means you lose a lot of efficiency in the CAES system. I suppose they eat the loss, since the primary power source is renewable wave energy, rather than a grid input.
UWCAES  CAES  underwater  ocean  compressed  air  energy  storage  bag  balloon  green  wave  pump  buoy  Delicious 
september 2014 by asteroza
Commercial Grid Scaling of Energy Bags for Underwater Compressed Air Energy Storage
Some improvements in the design of high tensile strength balloon bags as a compressed air energy storage device, as a spinoff from doing Bigelow Aerospace TransHab style inflatable space station module production and research.
UWCAES  CAES  underwater  ocean  energy  storage  bag  balloon  compressed  air  green  structural  tendon  strip  fabric  textile  research  technology  Delicious 
september 2014 by asteroza
ASME 2011 Small Modular Reactors Symposium - SMR2011
Interesting papers (6520 and 6554) about a hybrid nuclear/combustion gas turbine plant, Using a helium gas brayton cycle turbine to run a decoupled air compressor for a linked coal gasification syngas powered combustion turbine (with likely combined cycle steam plant which could also be linked with the nuclear side of the plant). Also talking about integrated process heat and synfuel production. Natural gas carrot to try to get nuclear synfuel production capabilities? There is some CAES talk since the air compressor is decoupled which would allow storage, and nuclear heat is available for air reheat when releasing from storage.
hybrid  helium  nuclear  reactor  gas  brayton  cycle  turbine  coal  gasification  syngas  combined  decoupled  air  compressor  power  generator  concept  design  CAES  compressed  air  storage  energy  Delicious 
february 2012 by asteroza
LightSail Energy, Inc.
Some kind of stealth startup in the CAES field, using some sort of hydraulic based air compression system, and using water mist to capture compression heat and to reduce tank temperature post compression.
CAES  compressed  air  energy  storage  green  startup  hydraulic  compression  compressor  mist  water  injection  Delicious 
september 2011 by asteroza
Bright Energy Storage Technologies
Proposing using fabric bags to hold compressed air at depth, and use a reversible compressor/turbine with ocean heat exchanger to release compression heat and recover heat for heating the expanding air.
underwater  ocean  CAES  compressed  air  energy  bag  green  power  generator  storage  technology  Delicious 
september 2011 by asteroza
Brayton Energy - Research and Development in Alternative Energies - Hampton, NH - 603-601-0450
Split cycle solar thermal brayton air turbine setup, using grid surplus power at night to store compressed air, and during the day running that air through a solar concentrator dish heat exchanger powered air turbine (with exhaust recuperator to warm the cool air being released from the night storage)
solar  thermal  brayton  cycle  air  turbine  dish  collector  split  compression  expansion  power  generator  green  energy  SolarCAT  turbogenerator  compressed  Delicious 
june 2011 by asteroza
SustainX Energy Storage Solutions
Interesting use of water to both keep the compression isothermal, and to store heat for later when expanding to keep the expansion cycle isothermal. But they are advocating using compressed air tankage (gas cyclinder) rather than salt domes, so there is a high capital cost of tanks issue that needs to be addressed. Hrm, this ends up being similar to the Energy Bag guys, since they would use seawater to both release and recover heat via heat exchanger/recuperator. But if you are getting worked up over heat recovery, why not go for hotter compression cycles and store the heat as a molten salt?
SustainX  isothermal  compressed  air  energy  storage  CAES  ICAES  Water  spray  mass  injection  green  Delicious 
june 2011 by asteroza
Thin Red Line Aerospace
Apparently they also did the prototype for the Energy Bag underwater compressed air storage energy battery device.
inflatable  fabric  structure  structures  aerospace  Bigelow  UK  EU  energy  bag  compressed  air  storage  green  CAES  Delicious 
may 2011 by asteroza
MHI to develop compressed air solar power plant : Business : DAILY YOMIURI ONLINE (The Daily Yomiuri)
If I understand this correctly, I think they are simply using concentrated solar thermal energy as a substitue for the fuel and combustor assembly in a gas turbine, taking some pressure losses and reduced efficiency in exchange for a dry plant (no heat recovery steam generator turbine). But to be truely dry requires a once through system like a gas turbine, so you take some bad hits on efficiency. Also solar, so unless you use a thermal store (molten salt) to cover nighttime generation you have to shutdown at sundown. If you had the molten salt thermal store to capture some compression heat, then a CAES storage system might be possible, but I imagine that wouldn't be attractive for a scenario like this.
MHI  CSIRO  australia  solar  thermal  compressed  air  turbine  power  generator  green  energy  CAES  Delicious 
july 2010 by asteroza
Hybrid Power Technologies, LLC
Odd ball hybrid nuclear/combined cycle gasified coal powerplant design. Uses a gas cooled reactor turbine to drive the combustion turbine's decoupled compressor to get disgustingly high pressure for combustion.
hybrid  helium  nuclear  reactor  gas  brayton  cycle  turbine  coal  gasification  syngas  combined  decoupled  air  compressor  power  generator  concept  design  CAES  compressed  storage  energy  NACC  Delicious 
may 2010 by asteroza
News ArticleCheap and green
Using free pistons embedded in huge turbine blades, have an oversized offshore wind turbine generate compressed air, stored in underwater containers called energy bags.
Europe  UK  england  offshore  wind  turbine  power  generator  compressed  air  energy  bag  CAES  floating  container  ICARES  Nimrod  green  Delicious 
march 2010 by asteroza

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