制冷学报2026，Vol.47Issue(3)：125-132,8.DOI:10.12465/issn.0253-4339.20250329001
基于数值分析的复叠式主动磁回热器制热性能研究
Study on the Heating Performance of a Cascade Active Magnetic Regenerator Based on Numerical Simulations
摘要
Abstract
To address the limitations of magnetic refrigeration and magnetic heat pump systems near room temperature,this study establishes a one-dimensional numerical model of a cascade active magnetic regenerator and examines the key parameters influencing heating performance.The simulation results indicate that a higher flow rate of the heat transfer fluid accelerates the attainment of a steady-state temperature at the hot end.Furthermore,as the flow rate increases,the no-load temperature span initially increases and then decreases,while the heating capacity increases.Reducing the(de)magnetization time and flow time can significantly enhance both the heating capacity and no-load temperature span,achieving values of up to 55.2 W and 29.9 K,respectively,under a 1-1-1-1 s operating sequence.When the Curie temperature interval of LaFeSiH increases,the no-load temperature span first increases and then decreases,reaching a maximum of 40.2 K at a Curie temperature interval of 6 K.Among the four filling length ratios,the optimal heating performance is achieved at a ratio of 2∶2∶2∶2∶7,resulting in a maximum no-load temperature span of 31.2 K and a maximum heating capacity of 64 W.关键词
磁热泵/复叠式主动磁回热器/数值模型/制热性能Key words
magnetic heat pump/cascade active magnetic regenerator/numerical model/heating performance分类
通用工业技术引用本文复制引用
余浩贤,苑晓亮,巫江虹..基于数值分析的复叠式主动磁回热器制热性能研究[J].制冷学报,2026,47(3):125-132,8.基金项目
国家自然科学基金(52276008)资助项目.(The project was supported by the National Natural Science Foundation of China(No.52276008).)本文受山东省重点研发计划项目(2023CXGC010301)资助.(The project was supported by the Key R&D Program of Shandong Province(No.2023CXGC010301).) （52276008）
