Exergy efficiency based multi-objective configuration optimization of energy hubs in the multi-energy distribution system

Jiaxin Tao, Jiandong Duan, Lihao Tuo, Qi Gao, Qinxing Tian and Wenchao Lu

Energy, 2025, vol. 329, issue C

Abstract: In the planning of integrated energy systems, energy efficiency analysis is a key indicator for system optimization. However, the previous studies on multi-energy systems mainly focus on economy or environmental benefits, but energy efficiency, especially exergy efficiency is seldom considered. This paper proposes an optimization model and method for energy hubs within multi-energy distribution systems, with a focus on exergy efficiency as one of the key objectives. Initially, the concept of exergy efficiency analysis for multi-energy systems is proposed, along with methods to quantify the performance of energy conversion processes. Subsequently, a multi-objective optimization model is then formulated to minimize exergy efficiency losses while simultaneously balancing exergy efficiency with objectives related to pollutant emissions, investment, and operational costs. Due to model complexity, non-convex terms within the objective function and equality constraints were linearized. Subsequently, a mixed-integer second-order cone programming method was implemented, providing an efficient solution to the optimization problem. Testing on the IEEE 33-bus system, a 24-node gas system, and an energy hub confirms the superiority of the proposed method through case studies, and further corroborates the effectiveness of the proposed model and solution algorithm.

Keywords: Multi-energy distribution system; Energy hub; Configuration; Exergy efficiency; Multi-objective optimization; Mixed integer second-order cone programming (search for similar items in EconPapers)
Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0360544225021966
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:329:y:2025:i:c:s0360544225021966

DOI: 10.1016/j.energy.2025.136554

Access Statistics for this article

Energy is currently edited by Henrik Lund and Mark J. Kaiser

More articles in Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().