Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
On the Improvement and Accuracy in Thermoeconomic Diagnosis: dissipative component and exergy disaggregation
Submission Author:
Raphael Amorim Lorenzoni , RJ
Co-Authors:
José Joaquim Conceição Soares Santos, Atilio Lourenço, João L M Donatelli, Raphael Amorim Lorenzoni
Presenter: José Joaquim Conceição Soares Santos
doi://10.26678/ABCM.COBEM2017.COB17-0909
Abstract
Thermoeconomics join concepts of Economics and Thermodynamics in order to describe the cost formation process of the overall thermal system. It has great applicability in product cost allocation, optimization and diagnosis aiming to reduce operating costs and to prove the system's economic feasibility. Thermoeconomic diagnosis is applied to identify the source of extra fuel consumption in each system element. In this study, a Rankine cycle with five simulated anomalies was evaluated by four different thermoeconomic models based on productive diagrams (E, E&S, H&S and UFS) together with the fuel impact formula, focusing in analyse its efficiency in quantifying the effects of each malfunction with the presence of a dissipative component. The results showed that the E and E&S models are not adequate to identify the main malfunction, whilst H&S and UFS models presented satisfactory behaviour. UFS did not improve accuracy for this system when compared to H&S.
Keywords
Diagnosis, thermoeconomics, Rankine cycle, dissipative components
