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Altair Nanotechnologies, Inc. Message Board

  • tiaotiaobengbeng tiaotiaobengbeng Apr 4, 2012 5:42 PM Flag


    Check this, they will start to sell in US market

    Whole world changed so quickly, why your guys just care about your tiny inventory????


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    • I believe that was from a FRONTLINE episode on pbs. Where the faucet had flames shooting out of it. you could probably find it on u tube

    • "free you are assuming electricity comes from

      I made that assumption because it is a fact. :)

      "A lot of solar cells are now being installed to
      charge battery assisted vehicles.."

      So far, the amount of electricity being produced
      without turbines does not amount to a pee hole
      in the snow. :) And, solar is three times more
      expensive. The most efficient solar, CSP, does
      use turbines.

      If I had taken my own advice and shorted solar
      stocks, I would be a millionaire.:)

    • "In general in service Combined Cycle efficiencies
      are over 50 percent.."

      Those new turbines are a lot more expensive, a lot
      bigger, more complex, and more expensive to
      maintain. They will not be replacing the thousands
      of standard work horses any time soon, if ever,
      IMO. On the other hand, efficient diesel engines
      are already standard in Europe.

    • <However ... long distribution lines can take up to 30% loss too.>

      I, too, remember line losses weren't as high as we first thought. It is American Superconductor (AMSC) that has the means to transport renewables over vast distances with superconducting cables:

      "To meet increasing power demands, the electricity infrastructure is changing. From North America to Europe to Asia, grand power networks are being planned. Wind and solar power must be carried vast distances. Power must be shared between disparate regions. And central to many of these projects is HVDC technology.

      As the transmission medium for HVDC applications, superconductor cables can move virtually any amount of power with much greater efficiency than any other transmission technology – and they move it underground, out of site and out of harm’s way. Additionally, with HVDC superconductor cables, you can install a single superconductor cable allowing for future grid expansion without requiring the construction of additional new lines."

      They dropped from $6 to under $4 recently and I bought some to hang on to for awhile. Not a big position... a small speculative play to keep them on my radar.

      Interesting company. As some of the FERC Orders are working through the system to see who pays for the transmission lines necessary to connect these big renewable farms to the customers, AMSC could end up a big winner. Some of these line improvements got delayed, but will happen eventually.

    • my look at that somewhat confirms what you said ... about a 50% overall reduction or loss including the generators. However ... long distribution lines can take up to 30% loss too.
      so that would be an additional 20% about. Someone may know how "long" long is ... I don't. But that may put a damper on solar farms in the Southwest ... with energy delivered to the Northeast. There is also little info about pverloading the lines. ..
      except it can cause the lines to sag and sway with potentual disruptions in current.

    • State of the art for turbines seems to be >50%

      In general in service Combined Cycle efficiencies are over 50 percent on a lower heating value and Gross Output basis. Most combined cycle units, especially the larger units, have peak, steady state efficiencies of 55 to 59%. Research aimed at 1370°C (2500°F) turbine inlet temperature has led to even more efficient combined cycles and 60 percent efficiency has been reached in the combined cycle unit of Baglan Bay, a GE H-technology gas turbine with a NEM 3 pressure reheat boiler, utilising steam from the HRSG to cool the turbine blades. Siemens AG announced in may 2011 to have achieved a 60.75% net efficiency with a 578 megawatts SGT5-8000H gas turbine at the Irsching Power Station. [wikipedia]

      Another thing to keep in mind is that the overall efficiency of gasoline driven engines doesn't start at the gas tank in your car. You've got to extract the oil from the ground or tar sands, refine it, ship it in boats across oceans or pipelines, then haul it around in trucks to get it to the gas station. So must be plenty of energy loss involved in that whole process. And then after all that, you lose another 70% in the internal combustion engine!!

      I think we were looking at the grid distribution efficiency here not too long ago and lbcb found a number of avg. 94% to get electricity from the generator to the home.

    • free you are assuming electricity comes from turbines.
      A lot of solar cells are now being installed to charge battery assisted vehicles.
      Of course the solar panels are not that efficient ... but still no carbons being produced!

    • >>Yes. Your math is correct.

      Thank you!

      Now we know, all of existing battery models YTE selling can not compete with LISHEN's battery for CODA in weight and volume.

      So, the only hope that YTE can win the future is their LTO material and battery, and the bus. :-)

      I believe they will run double quick to save ALTI and YTE itself. Let's wait

    • >>Then we could use that as a model to guess, since it shouldn't be that different from one EV to the next.

      OK, Thank you. So, let's assume all that stuff weigh 70KG, total like 300KG, make sense?

      YTE's LTO battery maybe need no metal junk... they are packaged in metal already....

    • "If using 135Wh/kg, 31KWh = 31000/135 = 229 KG?"

      Yes. Your math is correct.

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