原子能科学技术2017，Vol.51Issue(3)：425-431,7.DOI:10.7538/yzk.2017.51.03.0425
直流蒸汽发生器全范围流动与传热数值模拟
Numerical Simulation of Full Range Flow and Heat Transfer in Once-through Steam Generator
摘要
Abstract
The once-through steam generator operated by B&W was used as a prototype and the single-phase liquid convective heat transfer region , nucleate boiling region , post-dryout region and superheating steam region (full range ) in secondary side of an once-through steam generator were predicted by using two-fluid three-flow-field mathe-matical model .T he results show that the model used in this paper can accurately predict the full range flow and heat transfer characteristics and the numerical results are in good agreement with operational data .Post-dryout steam quality is lower than thermal equi-librium steam quality and there exists thermal non-equilibrium in post-dryout region of the running steam generator combining with the wall temperature distribution .With the development of flow and heat transfer ,surface heat transfer coefficient increases rapid-ly ,the occurrence of dryout leads to a sharp decline in heat transfer performance and then surface heat transfer coefficient rises slowly in post-dryout region and superheating steam region .关键词
直流蒸汽发生器/两相流/蒸干/流动传热/全范围Key words
once-through steam generator/two-phase flow/dryout/flow and heat transfer/full range分类
能源科技引用本文复制引用
史建新,孙宝芝,于翔,赵颍杰,刘尚华..直流蒸汽发生器全范围流动与传热数值模拟[J].原子能科学技术,2017,51(3):425-431,7.基金项目
国家自然科学基金资助项目(51479040 ,51579048) （51479040 ,51579048）
黑龙江省自然科学基金资助项目(E201346 ,E201422) （E201346 ,E201422）
黑龙江省博士后科研启动基金资助项目(LBH-Q14036) （LBH-Q14036）
