Transactions of Materials and Heat Treatment

Title：Optimization on molding parameters for mushroom residue based on response surface and NSGA-Ⅱ

Authors： Li Zhen1 Qiao Zhizhong1 Sun Hengyang1 Li Bin1 Lei Zhao1 Xu Sheng2

Unit： 1. School of Mechanical Engineering Inner Mongolia University of Science and Technology 2. School of Civil Engineering Inner Mongolia University of Science and Technology

KeyWords： stable density drop resitance breakage rate specific energy consumption multi-objective optimization response surface method(RSM) mushroom residue

ClassificationCode：TK6

year,vol(issue):pagenumber：2025,50(7):153-159

Abstract：

In order to solve the problems of poor molding quality and high molding energy consumption in the production process of mushroom residue fuel pellets, the influence laws of the molding process parameters of mushroom residue pellet on the stable density, drop resistance breakage rate and specific energy consumption of the formed pellets were analyzed by the response surface method, the multi-objective mathematical model of its input and output was established. Then, at the same time, with the goal of maximizing the stable density and drop resistance breakage rate and minimizing the specific energy consumption, the multi-objective optimization on the molding process parameters was conducted by the non-dominated sorting genetic algorithm (NSGA-II), the accuracy of the optimization results was verified by experiments. The results show that when the moisture content is 14%, the pressing speed is 103 mm·min-1 and the holding time is 22 s, the stable density of the formed pellets reaches 1.114 g·cm-3, the drop resistance breakage rate and the specific energy consumption are 98.80% and 4.06 J·g-1, respectively. The experimental verification shows that the relative error between the predicted and experimental values is small, indicating the reliability of the optimization results.

Funds：

国家自然科学基金资助项目(52366018);内蒙古自治区鄂尔多斯科技局项目(YF20232302);高校基本科研业务费项目(2024RCTD006);内蒙古自然科学基金资助项目(2025MS05072)

作者简介：李震（1973-），男，博士，教授 E-mail：lizhen_730106@126.com 通信作者：乔志忠（1995-），男，硕士研究生 E-mail：1453151249@qq.com

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