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Study of energy scheduling and optimal cost management of a new structure CCHP system: A case study supplying energy for a chemical enterprise in Jiangsu Province

Ji, Jie; Qin, Jingxin; Ji, Rundong; Huang, Hui; Wang, Fucheng; Nazir, Muhammad Shahzad; Zhou, Mengxiong; Wang, Yaodong

Study of energy scheduling and optimal cost management of a new structure CCHP system: A case study supplying energy for a chemical enterprise in Jiangsu Province Thumbnail


Authors

Jie Ji

Jingxin Qin

Rundong Ji

Hui Huang

Muhammad Shahzad Nazir

Mengxiong Zhou



Abstract

A new structure combined cooling, heating and power (CCHP) system integrating green power applying a control strategy based on a improved whale optimization algorithm is proposed in this paper. This paper fully considers the high energy demand and a large amount of waste heat in chemical enterprises. By absorbing chemical waste heating (mainly from chemical wastewater), coupling wind and photovoltaic equipment, adding cooling, heating, and electricity storage equipment, combined with an energy scheduling strategy, and an efficient CCHP energy system for the target enterprise is realized. The improved whale optimization algorithm is used to optimize cost management. The results show that after the optimization scheduling with the improved whale optimization algorithm, the CCHP system meets the energy demand with higher efficiency at a lower cost. In winter and summer, heat pump recycling chemical wastewater provides 15.4%–57.9% and 11.5%–62.9% of the heating load of the heating network. Meanwhile, the lithium bromide refrigerator in the cooling-net equipment provides an average cooling load of 6.25–58.4% and 7.01–16.64%.​ Finally, the improved whale optimization algorithm reduces the total cost by 2.4 % and 2.17 %.

Citation

Ji, J., Qin, J., Ji, R., Huang, H., Wang, F., Nazir, M. S., …Wang, Y. (2022). Study of energy scheduling and optimal cost management of a new structure CCHP system: A case study supplying energy for a chemical enterprise in Jiangsu Province. Energy Reports, 8, 14499-14515. https://doi.org/10.1016/j.egyr.2022.10.374

Journal Article Type Article
Acceptance Date Oct 22, 2022
Online Publication Date Nov 9, 2022
Publication Date 2022
Deposit Date Nov 19, 2022
Publicly Available Date Mar 29, 2024
Journal Energy Reports
Print ISSN 2352-4847
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 8
Pages 14499-14515
DOI https://doi.org/10.1016/j.egyr.2022.10.374

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