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Sustainability 2017, 9(11), 2154; doi:10.3390/su9112154

Research on Energy-Saving Scheduling of a Forging Stock Charging Furnace Based on an Improved SPEA2 Algorithm

School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210000, China
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Received: 27 October 2017 / Revised: 19 November 2017 / Accepted: 20 November 2017 / Published: 22 November 2017
(This article belongs to the Special Issue Sustainable Utilization of Waste Heat)
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Abstract

In order to help the forging enterprise realize energy conservation and emission reduction, the scheduling problem of furnace heating was improved in this paper. Aiming at the charging problem of continuous heating furnace, a multi-objective furnace charging model with minimum capacity difference and waiting time was established in this paper. An improved strength Pareto evolutionary algorithm 2 (SPEA2) algorithm was designed to solve this problem. The original fitness assignment strategy, crossover operator and population selection mechanism of SPEA2 are replaced with DOPGA (Domination Power of an Individual Genetic Algorithm), adaptive cross operator, and elitist strategy. Finally, the effectiveness and feasibility of the improved SPEA2 was verified by actual arithmetic example. The comparison of results gained from three methods shows the superiority of the improved SPEA2 in solving this problem. Compared with strength Pareto evolutionary algorithm (SPEA) and SPEA2, the improved SPEA2 can get a better solution without increasing time complexity, the heating time is reduced by total 93 min, and can save 7533GJ energy. The research in this paper can help the forging enterprise improve furnace utilization, reduce heating time and unnecessary heating preservation time, as well as achieve sustainable energy savings and emissions reduction. View Full-Text
Keywords: charging furnace; forging billet; production scheduling; SPEA2; Pareto optimal solution; fitness assignment strategy; DOPGA charging furnace; forging billet; production scheduling; SPEA2; Pareto optimal solution; fitness assignment strategy; DOPGA
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He, F.; Shen, K.; Guan, L.; Jiang, M. Research on Energy-Saving Scheduling of a Forging Stock Charging Furnace Based on an Improved SPEA2 Algorithm. Sustainability 2017, 9, 2154.

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