MSIV COMPARTMENT PRESSURE RESPONSE TO MSLB WITH TMD CODE
A large number of investigations on the in-containment compartment pressure response to a pipe break have been done up to now. However, there are still a few researches into the pressure response of compartments outside containment. In this paper, the Transient Mass Distribution (TMD) code is used to analyze the pressure response of AP1000 Main Steamline Isolation Valve (MSIV) compartment outside containment to Main Steamline Break (MSLB). Effects of various parameters, such as environment temperature, entrainment and break location, on the pressure response of AP1000 MSIV compartment outside containment to MSLB are investigated. It is shown that, as the environment temperature increases, the maximum differential pressure occurs during the transient increases, while the peak pressure occurs during the transient decreases from 30℃ to 60 ℃. As the entrainment increases, the maximum differential pressure happens during the transient increases, and the peak pressure happens during the transient increases in the range of 0％ to 30％, while decreasing in the scope of 30％ to 100％. Comparing with MSLB in the lower west MSIV compartment, the maximum differential pressure and the peak pressure take place during the transient are larger for MSLB in the lower east MSIV compartment. During the transient, the peak pressure appears in the breaking node, and the maximum differential pressure occurs between the breaking node and the atmosphere node.
TMD Compartment MSLB Pressure response
ZHANG Guosheng
Shanghai Nuclear Engineering Research and Design Institute No.29 Hong Cao Road Shanghai China 200233
国际会议
上海
英文
1589-1599
2010-10-10（万方平台首次上网日期，不代表论文的发表时间）