Capstone Turbine Corporation (CPST) Message Board

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Technology Stocks : Capstone Turbine Corporation (CPST)

CPST 0.210

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Apr 22 5:00 PM EST

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To: Maurice Winn who wrote (217)	8/16/2001 9:25:51 PM
From: Sword	Read Replies (2) of 455

It's a combined cycle plant. Very good idea. The fuel cell produces very high exhaust gases. This is used to heat another gas in a closed brayton cycle or a 2 phase gas transport that is driven through the turbine and then condensed and recycled in a closed system. Electricity is produced from the turbine as well as the fuel cell. The fuel cell waste heat reduced markedly in temperature. You get tremendous efficiencies with no harmful emissions. "A hybrid system showing great promise is integration of gasification with a fuel cell. Fuel cells offer very high efficiencies, with emerging fuel cells having 60 percent efficiency. These emerging fuel cells also produce very high-temperature exhaust gases that can either be used directly in combined-cycle or used to drive a gas turbine. IGFC hybrids have the potential to achieve up to 60 percent efficiency and near-zero emissions. Moreover, the concentration of CO2 lends itself to removal by separation or other capture means. Such systems require that the syngas derived from gasification be free of contaminates for use in the fuel cell, or that the hydrogen be separated from the syngas (hydrogen is the fuel element for the fuel cell)." Taken from fe.doe.gov Looks good to me. I'm a buyer. -Sword

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