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液态金属实验回路（ＬＭＥＬ）是国内唯一用于聚变堆磁流体动力学（ＭＨＤ）效应和材料相容性研究的大型实验装置。与国外同类先进的装置相比，回路流程和运行方式均有重大改进，使其更先进、安全并具有多功能。回路运行分为两个阶段：第一阶段以钠－钾低共熔合金（２２Ｎａ７８Ｋ）为工质，研究ＭＨＤ效应，ＬＭＥＬ的最大哈特曼（Ｈａｒｔｍａｎｎ）数Ｍ和相互作用参数Ｎ分别为０．７５×１０４和２．５×１０４；第二阶段以液态锂为工质，研究结构材料与锂的相容性，最高温度和流速分别为５２０℃和１．３８ｍ／ｓ。
The liquid metal experimental circuit (LMEL) is the only large-scale experimental device in China that is used to study the effect of the fusion pile on MHD and material compatibility. Compared with similar advanced equipment in the world, the circuit flow and operation mode have greatly improved, making it more advanced, safe and versatile. The loop operation is divided into two stages. In the first stage, the MHD effect is studied with sodium-potassium eutectic alloy (22Na78K) as the working medium. The maximum Hartmann number M and the interaction parameter N of LMEL are 0 respectively. 75 × 104 and 2.5 × 104. In the second stage, liquid lithium was used as working material to study the compatibility of structural materials with lithium. The maximum temperature and flow rate were 520 ℃ and 1.38m / s, respectively.