Eventos Anais de eventos
ENCIT 2016
16th Brazilian Congress of Thermal Sciences and Engineering
EXERGY ANALYSIS OF A TRIGENERATION SYSTEM INTEGRATED WITH ORGANIC RANKINE CYCLE USING FRESNEL TECNOLOGY
Submission Author:
Flávio Pacelli Ziviani de Oliveira , MG , Brazil
Co-Authors:
Henrique Neiva Guimarães, Breno Gusmão Barbosa
Presenter: Flávio Pacelli Ziviani de Oliveira
doi://10.26678/ABCM.ENCIT2016.CIT2016-0090
Abstract
In this work it was implemented an Exergy analysis to verify the performance of a trigeneration system that consist of a heat exchanger to provide 1600 kW of heating, a cooling system using an absorption chiller that provide 800kW of refrigeration and a Rankine cycle to produce 500 kW of electricity. Solar radiation is absorbed using Fresnel CSP technology and it is the source of the energy for the proposed trigeneration system. The exergy analysis is made by vivificating the exergy destruction of each of main equipment and through the exergetic efficiency of the entire cycle as well. It can be seen that the largest sources of exergy destruction of the proposed system occurred in the solar collector, followed by the generator of the refrigeration system and the turbine, respectively. In addition to the equipments’ analysis, it was investigated the influence of four different types of fluids (Water, R123, Novec649 and N-octane) in the Rankine cycle in the exergetic system performance. It was noticed that the fluid that provide the best exergetic efficiency in the cycle was Water followed by N-Octane.
Keywords
Trigeneration, Exergetic Analysis, Fresnel, CSP
