Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
A FUEL-AND-PRODUCT MODEL OF CONCENTRATING SOLAR POWER SYSTEMS FOR APPLICATION IN EXERGY ANALYSIS
Submission Author:
Thiago de Oliveira Macedo , RJ
Co-Authors:
Thiago de Oliveira Macedo, Manuel Ernani Cruz, LEONARDO DOS SANTOS REIS VIEIRA
Presenter: Thiago de Oliveira Macedo
doi://10.26678/ABCM.COBEM2017.COB17-0219
Abstract
Exergy-based methodologies applicable to energy conversion systems have undergone increased development in academia. Currently these methodologies consider different possibilities of combination of thermodynamic, economic and environmental aspects, and they are classified into conventional or advanced. The results generated by these methodologies may be conveniently utilized to direct optimization or improvement procedures of energy conversion systems. The exergy balance is the supporting structure for these methodologies, and the concepts of Fuel and Product proposed in the literature permit rewriting the exergy balance for the different components of an energy conversion system in a simple and useful form. The increased interest in new sources of energy, in a context of coexistence of increased energy demand and the quest for sustainability, naturally results in the development of new technologies. These technologies might hinder the direct application of the concepts of Fuel and Product to a given component, as well as hinder the identification and calculation of exergy associated with a given component flux. In the present work, a Fuel-and-Product model is proposed to represent a solar field with parabolic collectors, that are part of a concentrating solar power plant. Four formulations for exergy calculation associated with the solar radiation are utilized in the proposed model. The results show different amounts of exergy destruction, which may be relevant to direct optimization or improvement procedures of the solar plant as a whole, from the thermodynamic viewpoint.
Keywords
Concentrating Solar Power, fuel and product, solar radiation, concentrated solar power plant, exergy
