Izvorni znanstveni članak

Numerical analysis of the elevator boosting performance of flat-tube-and-fin heat exchanger

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

* Autor za dopisivanje.

Sažetak

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.

Ključne riječi

Flat-tube-and-fin heat exchanger; NACA 0012; performance enhancement; elevator; CFD

Hrčak ID:

319859

URI

https://hrcak.srce.hr/319859

Datum izdavanja:

1.1.2025.

Posjeta: 0 *