Conventional and advanced 5E analysis of integrated hybrid solar-SCO2combined brayton cycle-organic rankine cycle- RO desalination

Abstract

A novel power and fresh-water production system is proposed in this paper that improves the efficiency of a gas turbine and recovers part of the waste heat. The system combines a supercritical CO2 regenerative Brayton cycle with a gas turbine, a solar tower, an organic Rankine cycle and a reverse osmosis (RO) desalination system. A thermodynamic simulation has been performed for the complex proposed system. In addition, Energy, Exergy, Exergoeconomic, Exergoenvironmental and Emergy (5E) analysis are performed. To better evaluate the proposed system, advanced 5E analysis have been performed based on the calculation of the exogenous/endogenous and avoidable/unavoidable parts of the exergy destructions. A computer program has been developed for the thermodynamic simulation and the 5E analysis. Thermodynamic simulations have been verified with Thermoflex software with high accuracy.