Solar thermal power plants simulation using the TRNSYS software

The paper describes activity directed on the TRNSYS software application Fo r mathematical simulation of solar thermal power plants. First stage of dev elopments has been devoted to simulation and thermodynamic analysis of the Hybrid Solar-Fuel Thermal Power Plants (HSFTPP) with gas turbine installati ons. Three schemes of HSFTPP, namely: Gas Turbine Regenerative Cycle, Brayt on Cycle with Steam injection and Combined Brayton-Rankine Cycle, have been assembled and tested under the TRNSYS. For this purpose 18 new models of t he schemes components (as and steam turbines, compressor, heat-exchangers, steam generator, solar receiver, condenser, controllers, etc.) have been el aborated and incorporated into the TRNSYS library of <<standard>> component s. The authors do expect that this initiative and received results will sti mulate experts involved in the mathematical simulation of solar thermal pow er plants to join the described activity to contribute to acceleration of d evelopment and expansion of <<Solar Thermal Power Plants>> branch of the TR NSYS. The proposed approach could provide an appropriate basis for standard ization of analysis, models and assumptions for well-founded comparison of different schemes of advanced solar power plants.