Viabilidade técnica e financeira de usina solar térmica de 1 mw Com módulo rankine orgânico: estudo de caso para o nordeste Brasileiro

Abstract

In this study, a 1 MWe parabolic trough concentrating solar power plant using an Organic Rankine Cycle to convert thermal power into electrical was simulated. The solar data used is from Fortaleza, the capital city of Ceará, a state in the northeast region of Brazil. The simulation was year-round and used hourly acquired data. 10 different configurations differing in number of collectors and use or not of thermal energy storage were considered and, by the end of the study, according to the technical and financial results, one best configuration was defined. With an annual energy generation of 4995,60 MWh, a 12,54% total efficiency and a payback of 33,4 years, the best defined configuration was the one with 100 collector assemblies and 53 MWh storage system. Besides that, the cost of the various components were compared to define the most expensive to the power plant, being the collectors acquisition the biggest cost, which represents 77,7% of the total inicial cost