原子能科学技术2017，Vol.51Issue(7)：1202-1207,6.DOI:10.7538/yzk.2017.51.07.1202
非能动安全壳冷却系统膜状冷凝强化换热设计
Design on Film Condensation Heat Transfer Enhancement in PCCS
刘家磊 1蔡琦 1陈玉清1
作者信息
- 1. 海军工程大学 核能科学与工程系,湖北 武汉 430033
- 折叠
摘要
Abstract
The passive containment coolant system (PCCS) will remove energy in containment during a nuclear reactor accident,preventing containment form losing efficacy because of high temperature and pressure.In this paper,to improve heat transfer efficiency,it was assumed that several barrier rings and a droplet collector were installed in the containment.By reducing the liquid film thickness,disturbing the non-condensable gas layer,and using the higher heat transfer efficiency in the turbulence flow,the total thermal resistance was reduced and the heating efficiency was improved.Taking AP1000 as an example,the heat transfer efficiencies in containment in two cases with and without the new facility were analyzed with the GDLM model.The results show that barrier rings and droplet collector could decrease film thickness,raise heat flow and enhance heat transfer efficiency.关键词
安全壳/非能动安全壳冷却系统/膜状冷凝/强化换热Key words
containment/passive containment coolant system/film condensation/heat transfer enhancement分类
能源科技引用本文复制引用
刘家磊,蔡琦,陈玉清..非能动安全壳冷却系统膜状冷凝强化换热设计[J].原子能科学技术,2017,51(7):1202-1207,6.
