文献类型：期刊文献

英文题名：Prediction of blowdown of a pressure relief valve using response surface methodology and CFD techniques

作者：Zhang, Jian[1];Yang, Liu[1];Dempster, William[2];Yu, Xinhai[1];Jia, Jiuhong[1];Tu, Shan-Tung[1]

机构：[1]East China Univ Sci & Technol, Sch Mech Engn, Key Lab Pressure Syst & Safety MOE, Shanghai 200237, Peoples R China;[2]Univ Strathclyde, Dept Mech & Aerosp Engn, Glasgow, Lanark, Scotland

年份：2018

卷号：133

起止页码：713

外文期刊名：APPLIED THERMAL ENGINEERING

收录：;EI(收录号：20180604767885);WOS:【SCI-EXPANDED(收录号:WOS:000428227000070)】；

基金：This study was financially supported by the China Natural Science Foundation (Contract No. 21176069, 21476073) and the Fundamental Research Funds for the Central Universities (WG1213011).

语种：英文

外文关键词：Pressure relief valve; Computational fluid dynamics; Transient numerical simulation; Response surface methodology; Backpressure chamber

摘要：In this study, parametric assessment of the main geometric design features of a pressure relief valve (PRV) with a backpressure chamber and two adjusting rings was conducted using response surface methodology. This design approach was established by using computational fluid dynamics (CFD) to model the dynamic performance of the opening and closing of a nuclear power main steam pressure relief valve (NPMS PRV). An experimental facility was established to test the NPMS PRV in accordance with the standard ASME PTC 25, and to validate the CFD model. It was found that the model can accurately simulate the dynamic performance of the NPMS PRV; the difference in blowdown between the simulation and experiment results is found to be below 0.6%. Thus, the model can be used as part of a design analysis tool. The backpressure chamber assisted in the resealing and decreased the blowdown of the NPMS PRV from 18.13% to 5.50%. The sensitivity to valve geometry was investigated, and an explicit relationship between blowdown and valve geometry was established (with a relative error less than 1%) using the response surface methodology; this will allow designers to assess the valve settings without the need for a CFD model.