In order to ensure core cooling under certain accident conditions,establishing the math model to calculate the distribution of temperature difference between primary side and secondary side of steam generator tube under natural circulation,as well as investigating the impact on the distribution due to natural circulation flowrate,residual heat level and secondary side pressure.The results can be taken as input of stress analysis of steam generator tube,and as a basis for determining the appropriate operation strategies under certain accident conditions.
关键词
自然循环/传热管/温差/蒸汽发生器(SG)/传热
Key words
natural circulation/tube/temperature difference/steam generator/heat transfer