asteroza + chp   36

QUADRUM - SteamMotor Mini Power Plant: Combined electricity and heat production (CHP = Combined Heat and Power)
similar to liquid piston, being a reverse wankel, but rather than LP's lozenge piston, this one uses a square, which ends up forcing the seals to be on the piston like a wankel, which negates the reverse wankel's primary advantage of tip seals on the cylinder wall (allowing cooling/lube)
CHP  rotary  rotating  square  piston  engine 
august 2017 by asteroza
Welcome To Flow – The Clever Energy Alternative
Uses a working fluid with a scroll expander turbine (for the generator) and post-expansion heat exchanger for hot water. So it's directly boiling the working fluid itself, which is closed loop. How that would compare to a fuelcell combustor microturbine generator with exhaust gas heat recovery to heat water for CHP is probably one of cost.
integrated  CHP  condensing  natural  gas  water  heater  power  generator  scroll  expander  turbine  microturbine  hardware  electronics  devices  Delicious 
february 2015 by asteroza
Welcome | NRG
Will try a SolarCity lease model to get businesses to use Dean Kaman's Beacon 10 natural gas stirling engine CHP generator.
stirling  engine  power  generator  CHP  heat  distributed  lease  Delicious 
july 2014 by asteroza
DEKA Research and Development - Technologies and Applications - Stirling Engines
Currently planning to work with NRG Energy to roll out a 10KW version called the Beacon 10.
stirling  power  generator  CHP  heat  methane  nautral  gas  Delicious 
july 2014 by asteroza
The fuel cell for home - Research News June 2014 - Topic 2
Different from Ene-farm rigs, this is an augmented home gas heater, using a reformer and a SOFC fuel cell stack to coproduce power and heat. Not a water heater rig though. Shame you can't chain rig the fuel cell stack with an adsorption cooler plus water heater/space heater.
home  fuelcell  Fraunhofer  SOFC  materials  science  research  technology  stack  plate  natural  gas  heater  reformer  CHP  ene-farm  Delicious 
june 2014 by asteroza
IBM News room - 2013-04-22 Made in IBM Labs: Collaboration Aims to Harness the Energy of 2,000 Suns - United States
IBM integrated microchannel chip cooling used to make solar cell panels with integrated liquid cooling, rather than sandwiched to a primary heat exchanger backing the solar cell panel. Supposedly reduces pumping power costs.
chip  manufacturing  photovoltaic  technology  concentrator  thermal  CSP  cell  microchannel  CPV  solar  research  semiconductor  PV  HCPVT  IBM  cooling  generator  power  CHP  high  Delicious 
april 2013 by asteroza
太陽光の熱を朝日から夕陽まで回収し効率よく発電:報道発表資料|2013年 プレスリリース|理化学研究所
Riken's press release on the Fresnel lens solar thermal wankel rotary heat engine. Apparently the lens tech is fairly advanced, being developed as a telephoto lens for observing high energy cosmic rays, with high optical transparency and a surface roughness less than 20nm. They used a three sided lens structure (top plate and two vertical plates), called a "Fresnel Sun House" to gather light well onto a T shaped thermal absorber/heat exchanger, even when the sun is close to the horizon at sunrise/sunset.
absorber  concetrator  cycle  thermal  optics  engine  green  plate  rotary  wankel  solar  heat  lens  research  japan  Riken  generator  power  CHP  fresnel  exchanger  energy  rankine  Delicious 
january 2013 by asteroza
Launch of New 'Ene-Farm' Home Fuel Cell Product More Affordable and Easier to Install | Headquarters News | Panasonic Global
Um, so they cheated here a bit, and basically entertained the possibility of integrating the fuel cell and storage tank with conventional (i.e. existing) gas fired on-demand hot water heaters which are common in japan, rather than forcing the homeowner to rip out their existing hot water heater. Well, closer to reality is they still have to rip it out, but at least with this setup, you can stick the backup heater into the nook a building was originally equipped with, and stick the fuel cell close to where AC compressors are typically located for a japanese residence.
water  Panasonic  hardware  heater  hot  ene-farm  CHP  devices  enefarm  fuelcell  electronics  Delicious 
january 2013 by asteroza
High-performance bulk thermoelectrics with all-scale hierarchical architectures : Nature : Nature Publishing Group
New lead telluride material with a ZT of 2.2 for a deltaT around 600K at a 677C/77C hot/cold split. Makes thermoelectrics borderline practical for hot engine applications.
lead  telluride  PbTe  materials  science  research  technology  nanotechnology  nanostructure  structure  lattice  thermal  conductivity  control  high  ZT  thermoelectric  power  generator  waste  heat  energy  recovery  green  CHP  Delicious 
september 2012 by asteroza
CHP Engines - Cleanergy
Interesting home use stirling engine for CHP applications, which can run on natural gas. Also have a solar heat powered version too.
CHP  methane  natural  gas  stirling  engine  power  generator  green  energy  solar  thermal  Delicious 
april 2012 by asteroza
Tokyo Gas pimping their Ene-Farm version, complete with song and dance show (really...)
tokyo  gas  Enefarm  ENE-FARM  fuelcell  home  power  generator  green  energy  domestic  CHP  Delicious 
december 2011 by asteroza
Smart grid eyed to smooth power supply to Tokyo offices : National : DAILY YOMIURI ONLINE (The Daily Yomiuri)
While potentially viable, this feels like a giant pack of FAIL to me. Buildings that large often have internal generators for emergencies and such. I believe Mori building corp is currently running a couple in Roppongi full time to supplement power in the core of Tokyo. It then becomes an issue of ranking external grid power costs next to the costs of operating an internal generator, and fire it up when the external costs get too high during peak hours. This smells like subsidies for installing CHP gas turbines, like those Capstone microturbines, or for CHP fuel cells like the Enefarm ones by Tokyo Gas (if they fix that stupid problem of needing grid power to operate the fuel cell pumps, so if the grid goes down you lose the fuel cell too...). The talk of purchasing renewable energy is total BS from a system perspective unless there is actual power generation and transmission system reform, and an ISO to manage it. But that goes hand in hand with smartgrids anyways.
japan  tokyo  smartgrid  green  energy  CHP  power  generator  cogeneration  fuelcell  Enefarm  microturbine  gas  turbine  Delicious 
november 2011 by asteroza
Honda to Launch High-efficiency Gas Engine Cogeneration Unit -- Tech-On!
Hrm, I would normally suspect a gas engine here implies a piston judging by the mention of a linkage, but that puts a cap on efficiency since you want to avoid predetonation. Interesting implementation of a variable cylinder volume, but couldn't you do that in a simpler way with a prematurely closing intake valve and simply use cylinder/crankshaft inertia to fight the suction that would develop? But why a reciprocating engine? Capital costs? You would think a fuelcell or capstone microturbine would be better...
Honda  EcoWill  home  residential  cogeneration  CHP  green  energy  reduction  natural  gas  methane  hardware  engine  Delicious 
may 2011 by asteroza
WhisperGenTM heat and power systems
Interesting quiet generator for smallish yachts. 800W, but near silent and has decent fuel efficiency, but a major aim is CHP applications, since it provides enough heat that you might be able to run an adsorption cooler for the refrigerator/freezer rather than an electric compressor, and the heat is also applicable for hot water and radiant heating, which is nice in colder climates.
WhisperGen  marine  stirling  power  generator  CHP  propulsion  diesel  green  energy  quiet  low  sound  Delicious 
april 2011 by asteroza
PV Battery, Water Heater Combined for Efficiency -- Tech-On!
Definitely a "duh, why didn't I think of that" idea, though I imagine there may be long term issues regarding clarity of the clear plastic due to mineral accretion from the water and external clarity due to UV degradation and air pollution. But it is a neat trick to use water's optical properties to improve collector efficiency. Japan has a long history of home solar water heaters, but then tend to look terrible after a number of years and can be a real eyesore because they usually integrate the tank as well (but in Japan, home resale value is so low because people care about the land value more and build homes with poor longevity anyways so people care less about external appearances).
NTT  japan  hybrid  PV  solar  cell  hot  water  heater  collecotr  panel  green  energy  CHP  hardware  electronics  devices  prototype  liquid  lens  optics  Delicious 
february 2011 by asteroza
Kalahari Greentech Tests Gas Turbine
Wonder where they sourced a gas turbine that operates at such low temperatures...
Kalahari  tri-brid  Tribrid  CPV  CHP  gas  turbine  green  energy  power  generator  Delicious 
december 2010 by asteroza
Why Solar Power
Some kind of hybrid setup, using CPV with gaseous coolant driving a gas turbine, with waste heat from the turbine finally recovered in a water heater like a microturbine CHP rig.
Kalahari  tribrid  tri-brid  hybrid  CPV  concentrating  PV  solar  thermal  collector  reflector  CHP  heat  storage  turbine  power  generator  Delicious 
december 2010 by asteroza
Solar Cogeneration, Cogen, Power, Hot Water | Cogenra Solar
Basically this is a water cooled combined heat and power CHP concentrating solar PV trough design that recovers PV coolant heat for domestic hot water use. The low cost innovation seems to be the fresnel lens style segmented flat panel parabolic glass mirror array that makes up the trough, since flat mirrors in long planar sheets are cheap. New version also does AC via an adsorption chiller
photovoltaic  thermal  trough  concentrating  heat  cogeneration  trigeneration  cooler  cooling  power  generator  Cogenera  CHP  fresnel  parabolic  chiller  CSP  HVAC  green  solar  adsorption  reflector  combined  AC  PV  hybrid  energy  Delicious 
november 2010 by asteroza
I hadn't realized the guys behind Tokyo Gas' Ene-Farm home hybrid water heater/fuelcell setups was the Eneos oil corporation.
ENEOS  celltech  japan  CHP  combined  heat  power  fuelcell  ENE-FARM  enefarm  generator  green  energy  water  heater  hybrid  Delicious 
march 2010 by asteroza
ZenithSolar > 75% Efficiency in the Field
Not generating electricity from waste CPV heat, but using the heat to supply hot water. Technically CHP?
water  waste  thermal  green  cell  concentrating  solar  CPV  israel  heat  cogeneration  combined  PV  hot  power  generator  CHP  hybrid  energy  Delicious 
september 2009 by asteroza

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