Numerical analysis of the elevator boosting performance of flat-tube-and-fin heat exchanger
W. T. Shen,
Y. F. Zhao,
Z. C. Xu,
C. Y. Han,
B. Z. Wang,
X. C. Qian
Affiliations
W. T. Shen
College of Automotive Engineering, Hebei College of Science and Technology, Tangshan 063210, China
Y. F. Zhao
College of Automotive Engineering, Hebei College of Science and Technology, Tangshan 063210, China
Z. C. Xu
College of Automotive Engineering, Hebei College of Science and Technology, Tangshan 063210, China
C. Y. Han
College of Automotive Engineering, Hebei College of Science and Technology, Tangshan 063210, China
B. Z. Wang
College of Automotive Engineering, Hebei College of Science and Technology, Tangshan 063210, China; College of Mechanical Engineering, North China University of Science and Technology, Tangshan 063210, China
X. C. Qian
Steelmaking Department, Shougang Jingtang United Iron and Steel Co, Ltd, Tangshan 063210, China
In this work, elevators shaped by NACA 0012 were deployed on the outer surfaces of tubes in a Flat-tube-and-fin heat exchanger, and their structural details were numerically investigated. Then, following an infrared experiment validation, heat transfer coefficient, pressure loss and JF factor were numerically compared to confirm performance enhancement. It is found that the maximum deviations between numerical and experimental data, 6,31 % of heat transfer coefficient and 3,84 % of pressure loss, secure the accuracy of the following comparison, and the maximum increases of heat transfer coefficient, pressure loss, and JF factor are 7,20 %, 0,07 %, and 7,09 % at 12 m/s, respectively.
