Work

Integrated Design and Operation Optimization of Multi-Energy Systems Including Energy Networks

Year: 2023

Type: conference-paper

Abstract: A multi-energy system is composed of four main subsystems: i) energy conversion, ii) energy transportation, iii) energy supply, and iv) energy storage.Recent works in the literature dealing with the design and operation optimization of multi-energy systems usually include only one of the above-mentioned subsystems at a time and neglect the others or consider them as constraints imposed a priori.That kind of approach may lead to near optimal system configurations.In fact, the global optimum can only be achieved by the synthesis, design and operation optimization of the system in its entirety.Here, a mixed integer linear programming (MILP) approach is proposed to simultaneously optimize the size of the energy conversion and storage plants, the capacity of the energy networks, and the operation of the whole multi-energy system.The objective function consists in minimizing the life cycle cost of the system while imposing an upper bound on greenhouse gas emissions.Moreover, this upper bound can be iteratively reduced to consider increasingly stricter decarbonization targets.A district composed of commercial and residential buildings, with their own electricity and heating demands and operating in a microgrid, is considered as a case study.Heat is provided to the end users via a district heating network, while electricity can be either generated on site or imported from the national grid.Results shows a reduction potential in carbon emissions of 45% for the considered system, together with an 8% reduction of the life cycle cost, with respect to a reference scenario.

Source: International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS)

DOI: 10.52202/069564-0302

Authors: Enrico Dal Cin, Gianluca Carraro, Andrea Lazzaretto, George Tsatsaronis, Gabriele Volpato, Piero Danieli

Institutions: University of Padua, Technische Universität Berlin

Language: English

Topic: Integrated Energy Systems Optimization

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Climate action, Affordable and clean energy, Industry, innovation and infrastructure, Responsible consumption and production

Open Access status: bronze

Funder: Università degli Studi di Padova