Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
TECHNICAL AND ECONOMIC VIABILITY ANALYSIS OF AN ORGANIC RANKINE CYCLE FOR USE ASSOCIATED WITH COMPOUND PARABOLIC CONCENTRATOR SOLAR COLLECTOR
Submission Author:
GESUE DOS SANTOS VALLE REZENDE , RJ
Co-Authors:
GESUE DOS SANTOS VALLE REZENDE, Daniel Chalhub, Manoel Antônio da Fonseca Costa Filho
Presenter: Daniel Chalhub
doi://10.26678/ABCM.COBEM2019.COB2019-2086
Abstract
Analyzed an Organic Rankine Cycle (ORC), for use associated with Compound Parabolic Concentrator (CPC) solar collector. This replaces the combustion of fossil fuels in the boiler, becoming a source of renewable energy, avoiding the emission of greenhouse gases. The temperature and pressure, as well as other operating parameters were used in the calculations referenced by manufacturers' catalogs and similar academic works. The software engineer equation solver (EES) was used for the mass and energy balances of the organic rankine cycle and the results obtained as a function of the fluid used were analyzed. We sought to use those fluids with higher critical point (pressure and temperature) as they are more suitable for higher temperature heat sources (as in the case of CPC). In the analysis, a regenerator was used to take advantage of the residual heat at the turbine outlet and temperature gain before the evaporator inlet, obtaining a higher efficiency of the Organic Rankine Cycle. The heat exchange efficiency and its respective required heat exchange area were also calculated. In the condenser the cooling was the minimum necessary only to condense the working fluid, the thermodynamic optimization of the cycle was due to the increase of the heat exchange area in the evaporator.
Keywords
Solar Energy, Rankine cycle, renewable energy, Power generation
