Single-objective and multi-objective optimization of the thermally integrated-pumped thermal energy storage system based on the novel optimization method coupling the orthogonal design and intelligent algorithm

IF 6.1 2区工程技术 Q2 ENERGY & FUELS

Applied Thermal Engineering Pub Date : 2025-04-05 DOI:10.1016/j.applthermaleng.2025.126404

Chengwu Yang, Xiaoxia Xia, Chuansheng Sun, Bo Peng, Jinhao Wu, Zhiqi Wang

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引用次数: 0

Abstract

The thermally integrated-pumped thermal energy storage system provides a promising solution to low-grade thermal energy utilization and efficient energy storage. In order to improve the system performance, a novel optimization method coupling the orthogonal design and intelligent algorithm is constructed. Performance optimization is conducted in two steps. The first-step optimization is performed by the orthogonal design. The influence law and contribution rates of the operation parameters, as well as the orthogonal optimal operation conditions under different objective preferences and comprehensive performance are obtained. The parameter contribution rate obtained by the orthogonal design is taken as the selection principle of the parameters for further optimization. The second-step optimization is conducted by the intelligent algorithm. The optimal operation conditions of the intelligent algorithm under different objective preferences and comprehensive performance are determined. The results indicated that the optimal round-trip efficiency, exergy efficiency and levelized cost of storage under different objective preferences obtained by the novel coupled optimization method are 89.93 %, 36.9 % and 0.3 $/kWh, respectively. The optimal round-trip efficiency, exergy efficiency and levelized cost of storage under comprehensive performance are 71.92 %, 29.01 % and 0.36 $/kWh, respectively. The novel coupled optimization method provides an effective solution to improve system performance.

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来源期刊

Applied Thermal Engineering 工程技术-工程：机械

CiteScore

11.30

自引率

15.60%

发文量

1474

审稿时长

57 days

期刊介绍： Applied Thermal Engineering disseminates novel research related to the design, development and demonstration of components, devices, equipment, technologies and systems involving thermal processes for the production, storage, utilization and conservation of energy, with a focus on engineering application. The journal publishes high-quality and high-impact Original Research Articles, Review Articles, Short Communications and Letters to the Editor on cutting-edge innovations in research, and recent advances or issues of interest to the thermal engineering community.