Inaugural US-EU-China Thermophysics Conference-Renewable Energy 2009 (UECTC 2009 Proceedings)
7 Solar Powered Thermodynamic Cycle Using Supercritical Fluids
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In this presentation, a solar energy powered thermodynamic cycle using supercritical CO2 for combined production of electricity and thermal energy is introduced. The technology utilizes evacuated solar collectors to convert CO2 into medium-temperature supercritical state, used to drive a turbine and thereby produce mechanical energy and hence electricity. The system also recovers thermal energy, which could be used for refrigeration, air conditioning, hot water supply, etc. in domestic or commercial buildings. Experimental prototype and tests have been constructed and carried out. It was found that CO2 is efficiently converted into high-temperature supercritical state. Electricity and hot water...