科研之友
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摘要
Liquid lithium served as plasma-facing material for limiters and divertor target plates are useful for the improvement of plasma performances. However, the liquid lithium water interaction is a main concern for the safety of fusion reactors. The assessment of explosion strength is significant to the risk analysis of application of liquid lithium. An experiment of liquid lithium droplet coolant interaction has been conducted. The experimental result indicates that the mass and initial temperature of liquid lithium droplet has a significant impact on the explosion strength. The peak pressure rises with the increase of the mass and the temperature of liquid lithium. Based on the theory of shock wave overpressure and experimental data, an overpressure formula for liquid lithium droplet coolant interaction is fitted by the least-square method. The optimum values of undetermined coefficients are obtained and the model to assess explosion strength of liquid lithium droplet coolant interaction is established. The model is verified by experimental data and proved to be applicable. It reflects the influence of the mass and initial temperature of lithium on the explosion strength and also provides a novel method for the evaluation of explosion strength of liquid lithium droplet coolant interaction.
- 出版日期2016
- 单位上海交通大学
