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Echogen Power Systems SCO2

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Echogen Power Systems SCO2 ( echogen-power-systems-sco2 )

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Program Phases 2 and 3 will involve the detailed design, fabrication, installation and testing of the heat engine at the SECARB Cranfield Geothermal Field located in Cranfield, MS U.S.A. Echogen has conducted system design studies to define requirements for sCO2 heat engines that can operate with full dry cooling for applications where cooling water is not available. The sCO2 power cycle has the ability to operate totally water-free making it a very attractive selection as the power block for emerging concentrating solar power (CSP) applications. CONCLUSIONS The systems trade study presented shows that sCO2 technology can displace steam for bottom cycling on gas turbines by providing higher output power with lower installed cost and lower O&M costs which can reduce LCOE by up to a 10 to 20 percent. Performance of the sCO2 heat engine for converting heat to power from furnace and flue gas exhaust for large-scale industrial applications will produce similar savings. In comparison to heat recovery steam generators, the higher energy density of sCO2 reduces system component size and cost, and provides significant advantages regarding system efficiency, footprint, and ease of installation. Echogen’s sCO2 heat engine technology is transformational because it uses CO2 to: • Generate electricity from useable (waste) heat without burning fuel or producing resultant emissions • Reduce reliance on grid delivered power for industrial applications and provide insulation from fluctuating retail electricity costs • Offset new energy production with recovered energy, reducing associated greenhouse emissions by improving overall energy production efficiency The sCO2 heat engine is a platform technology scalable from 250 kWe to greater than 50 MWe to support the widest possible variety of industrial and utility scale applications. The Echogen technology is thermal source agnostic, meaning that it is suitable with a wide range of heat sources for energy recovery with efficiencies up to 30 percent. REFERENCES 1) U.S. Energy Information Administration (EIA), International Energy Outlook 2011. 2) BCS, Inc. 2008, “Waste Heat Recovery – Technology and Opportunities in U.S. Industry,” U.S. DOE Industrial Technologies Program. 3) Anon., “The Industrial Gas Turbine Global Maintenance Market,” Forecast International, Dec. 2009. 14

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