(747d) Simulation of a Thermodynamic Cycle with Organic Absorbents and CO2

Research on the utilization of solar energy and reduction of carbon dioxide emission has been carried out in various ways. Due to the fact that carbon dioxide has a low supercritical temperature, it could be used as working fluid in thermodynamic cycles of moderate temperature. The moderate temperature heat source can be solar energy or other sustainable sources. In this paper, simulation of a Rankine cycle with carbon dioxide and an organic absorbent as binary working fluid was carried out. Electricity of generated by letting high pressure supercritical carbon dioxide go through a turbine. Also, thermal energy was obtained from a heat recovery system as by product, which can be used for absorption refrigerator, air conditioning, hot water supply and so on. The result show that the cycle can achieve production of heat and power with reasonable thermodynamics efficiency and has a great potential of the application of the carbon dioxide based Rankine cycle powered by solar energy.