Eventos Anais de eventos
COBEM 2021
26th International Congress of Mechanical Engineering
Bicriteria optimization of energy supply systems under economic uncertainty
Submission Author:
monica carvalho , PB
Co-Authors:
monica carvalho, alberto romero
Presenter: monica carvalho
doi://10.26678/ABCM.COBEM2021.COB2021-0130
Abstract
The economic benefit of introducing new sources and technologies in an energy supply system can be evaluated using optimization tools and data such as the consumer’s energy demands, performance and cost of energy conversion and storage technologies, etc. If the goal is to minimize the environmental impact of the system, data regarding the life cycle emissions of equipment and energy sources must be used. Although in general both objectives are not aligned in the mathematical sense, multi-criteria optimization can be used to obtain trade-off solutions that meet additional criteria, which may be difficult to express as functions of economical or environmental variables. Thus, this work uses bicriteria optimization to design a combined energy production system for a hospital located in Joao Pessoa, northeast Brazil. The hospital energy demands include electricity, heating (hot water and steam) and cooling. The objective is to consider total annual costs and total greenhouse gas emissions under different future fuel prices. To this end, we combine multi-criteria optimization and parametric analysis to build synthesis solution maps, as well as the corresponding Pareto front. Results presented in this way help decision makers to evaluate the robustness of each solution to different price scenarios, and their flexibility to achieve the desired economic and environmental performance.
Keywords
multigeneration, polygeneration, mixed integer linear programming, Life Cycle Assessment, Optimization
