原子能科学技术Issue(12)：2263-2268,6.DOI:10.7538/yzk.2014.48.12.2263
非能动余热排出换热器池沸腾换热性能研究
Research on Characteristics of Pool Boiling for Passive Residual Heat Removal Heat Exchanger
王开元 1曹夏昕 1李亚 1孙中宁1
作者信息
- 1. 哈尔滨工程大学核安全与仿真技术国防重点学科实验室，黑龙江哈尔滨 150001
- 折叠
摘要
Abstract
T he pool boiling characteristic of vertical tube bundle w as investigated by controlling the steam parameters in vertical tubes immersed in head water tank . Through the comparison of wall superheat and various condensate flow rate ,the differ‐ence of boiling heat transfer coefficient between central tube and side tube was analyzed . The experimental results show that the boiling heat transfer coefficient of tube bundle is significantly better than that of single tube ,which is about 1.2‐1.5 times of single tube under the condition of same heat flux .Compared with side tube ,the heat transfer capa‐bility of center tube is superior in low thermal load condition ,w hile the performance of center tube is inferior in high thermal load condition .When heat flux is higher than 200 kW/m2 ,the boiling heat transfer coefficient of side tube increases about 7% with respect to that of center tube , which will be further expanded gradually with the increase of heat flux according to the trend of experimental data .关键词
竖直管束/池沸腾/中心管/旁管Key words
vertical tube bundle/pool boiling/center tube/side tube分类
能源科技引用本文复制引用
王开元,曹夏昕,李亚,孙中宁..非能动余热排出换热器池沸腾换热性能研究[J].原子能科学技术,2014,(12):2263-2268,6.
