摘要
对某船主锅炉经济器更新的必要性进行讨论 ,分析了方形翅片管的应用情况和优点 ,在传热风洞试验台上采用恒壁温法对方形翅片管束空气侧流动阻力和传热进行了试验研究。结果表明 ,风速大于 2 5m/s时 ,应通过试验对换热系数进行修正 ,最后根据试验结果经过多方案优化比较得到了方形翅片管经济器的合理设计方案。
A discussion is conducted regarding the necessity to upgrade a marine main boiler economizer along with the analysis of the application circumstances and merits of square finned tubes. On a heat-transfer wind tunnel test rig an experimental research of the air-side flow resistance and heat transfer was performed of square finned tube banks. The results of the research indicate that in case of air speed greater than 25 m s it is necessary to revise heat transfer factors through tests. Finally, a rational design scheme was decided for the economizer with square finned tubes on the basis of the test results.
出处
《热能动力工程》
CAS
CSCD
北大核心
2004年第3期299-301,共3页
Journal of Engineering for Thermal Energy and Power
关键词
船用锅炉
经济器
方形翅片管
marine boiler, economizer, square finned tube
