Affiliation:
1. Faculty of Mechanical Engineering, Niš
2. Faculty of Electronic Engineering, Niš
Abstract
Exergy analysis is a universal method for evaluating the rational use of
energy. It can be applied to any kind of energy conversion system or chemical
process. An exergy analysis identifies the location, the magnitude and the
causes of thermodynamic inefficiencies and enhances understanding of the
energy conversion processes in complex systems. Conventional exergy analyses
pinpoint components and processes with high irreversibility. To overcome the
limitations of the conventional analyses and to increase our knowledge about
a plant, advanced exergy-based analyses are developed. These analyses provide
additional information about component interactions and reveal the real
potential for improvement of each component constituting a system, as well as
of the overall system. In this paper, a real industrial plant is analyzed
using both conventional and advanced exergy analyses, and exergoeconomic
evaluation. Some of the exergy destruction in the plant components is
unavoidable and constrained by technological, physical and economic
limitations. Calculations related to the total avoidable exergy destruction
caused by each component of the plant supplement the outcome of the
conventional exergy analysis. Based on the all-reaching analysis, by
improving the boiler operation (elimination of approximately 1 MW of
avoidable exergy destruction in the steam boiler) the greatest improvement in
the efficiency of the overall system can be achieved.
Publisher
National Library of Serbia
Subject
Renewable Energy, Sustainability and the Environment
Cited by
23 articles.
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