圆管内熔融盐强迫对流换热的实验研究

被引：16

作者：

刘斌

吴玉庭

马重芳

赵耀华

机构：

[1] 北京工业大学环境与能源工程学院传热强化与过程节能教育部重点实验室

来源：

工程热物理学报 | 2010年 / 31卷 / 10期

基金：

北京市自然科学基金;

关键词：

熔融盐; 强迫对流; 换热; 关联式;

D O I：

暂无

中图分类号：

TK124 [传热学];

学科分类号：

摘要：

为了验证现有的经典对流换热关联式是否仍然适用于高温熔融盐管内强迫对流的换热规律,搭建了熔融盐传热蓄热循环实验台进行实验研究.实验台系统已经在实验室安全成功运行了上千小时,实验中,设计了熔融盐-导热油换热器,通过测量熔融盐进出口温降和导热油进出口温升得到了换热器的总传热效率,然后利用最小二乘法对管内熔融盐对流换热系数进行分离,拟合出了熔融盐管内过渡流和充分发展紊流的实验关联式.通过和经典的传热关联式进行比较发现,熔融盐管内强迫对流换热特性仍然适用于Sieder-Tate方程,Petukhov方程,Hausen方程以及Gnielinski方程.

引用

页码：1739 / 1742

页数：4

共 11 条

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