The Design of Experiment Equipment for Liquid Lithium Water Interaction

In order to assess the risk of using liquid lithium as plasma facing materials, the experiment equipment for liquid lithium water interaction was introduced in detail. The design temperature of liquid lithium and water were 200 °C to 600 °C and 25 °C to 90 °C, respectively. A furnace was designed to heat solid lithium to molten state in inert gases. The lithium droplets were released into the test section by adjusting the sample release rod made of stainless steel. The shape of lithium droplet and steam generated around the lithium could be observed by the high speed camera. The change of pressure and temperature would be recorded through transducers at the same time. The physical model of liquid lithium water interaction was analyzed, which contained a heat transfer model and a mass transfer model. In addition, an experiment of the solid lithium granule water interaction was performed to debug the devices and make a preliminary assessment of the risk for solid lithium water interaction.