摘要
为了研究螺旋肋片换热器的综合性能,建立了单周期三维模型,通过模拟得到了螺旋肋片换热器壳程内流场和温度场,并分析了换热器综合性能的影响因素.在相同的工艺条件下,完成了螺旋肋片和折流杆两种换热器的综合性能对比实验.结果表明,前者比后者具有较高的传热系数和较低的压降,数值结果与实验数据吻合较好.螺旋肋片换热器结构较简单,综合性能优于同类换热器,具有良好的工程应用前景。
In order to investigate the integrated performance of the helical ribbed heat exchanger （HRHE）, the three-dimension models with single period of the heat exchanger were set up. The flow field and temperature field were obtained by simulation in the shell side of the HRHE, and the influ- encing factors on the integrated performance of the HRHE were analyzed. The performance contrast tests of the HRHE and the baffle rod heat exchanger were carried out under the same technological conditions. The experimental results indicate that the HRHE has higher heat coefficient and lower pressure drop than the baffle rod heat exchanger, which have a good agreement with numerical results. The HRHE has simpler structure and good prospect of engineering application.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2008年第5期861-864,共4页
Journal of Engineering Thermophysics
基金
郑州大学青年骨干教师项目
郑州大学"211工程"重点学科建设项目
关键词
螺旋肋片
换热器
螺旋流动
高效传热
低流阻
helical rib
heat exchanger
helical flow
efficient heat transfer
low flow resistance
