原子能科学技术2018，Vol.52Issue(4)：622-626,5.DOI:10.7538/yzk.2017.youxian.0469
高温气冷堆内含硼碳材料吸湿特性与扩散系数研究
Moisture Absorption Property and Diffusion Coefficient of Carbon Material with Boron Carbide in HTGR
摘要
Abstract
High-temperature gas-cooled reactor(HTGR)is the first kind of power plant with fourth-generation features in the world, and a large amount of nuclear graphite and carbon material is adopted as structural material and fuel matrix material. The carbon material is porous material, and absorbs moisture and other impurities from air atmosphere. The dehumidifying process of initial reactor core or post-accident core was determined by the moisture diffusion. The time-moisture absorption capacity curve, which was obtained from the dynamic moisture absorption experiment on carbon material with boron carbide(BC), was fitted with simulation result to derive the effective moisture diffusion coefficient Dein BC, and Deis 7. 30×10-10 m2/s. The influence of humidity and temperature on equilibrium moisture adsorbance was introduced. The equilibrium moisture adsorbance increases linearly with the environmental humidity, and decreases with the increase of temperature.关键词
多孔材料/碳素材料/吸湿/扩散系数Key words
porous material/carbon material/moisture absorption/diffusion coefficien分类
能源科技引用本文复制引用
李俊,银华强,何学东,杨星团,姜胜耀..高温气冷堆内含硼碳材料吸湿特性与扩散系数研究[J].原子能科学技术,2018,52(4):622-626,5.基金项目
国家自然科学基金资助项目(11302117) （11302117）
