3D NUMERICAL SIMULATION ON LAMINAR HEAT TRANSFER AND FLUID FLOW CHARACTERISTICS OF SLITTED FIN SURFACES-INVESTIGATION OF STRIP LOCATION EFFECT

Qu, Z.G.; He, Ya-Ling; Tao, Wen-Quan

Compact Heat Exchangers and Enhancement Technology for the Process Industries - 2003

ISBN Druckformat: 978-1-56700-195-2

3D NUMERICAL SIMULATION ON LAMINAR HEAT TRANSFER AND FLUID FLOW CHARACTERISTICS OF SLITTED FIN SURFACES-INVESTIGATION OF STRIP LOCATION EFFECT

Z.G. Qu School of Energy & Power Engineering, State Key Laboratory of Multiphase Flow and Heat Transfer Xi'an Jiaotong University, Xi’an Shaanxi 710049, CHINA

Ya-Ling He Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China

Wen-Quan Tao State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science & Engineering, Tongji University, Shanghai 200092, China; International Joint Research Laboratory of Thermal Engineering, Key Laboratory of Thermo-Fluid Science and Engineering of MOE, School of Energy and Power Engineering, Xian Jiaotong University, Xi'an 710049, China

Abstrakt

In this paper, a numerical investigation of air side performance of strip fin surface is presented. Three-dimensional numerical computation was made for a model of a two-row finned tube heat exchanger. The tube configuration is simulated with step-wise approximation, and the fin efficiency is also calculated with conjugated computation. It is showed that the strip fin with strips located in the rear part of the fin surface has a better performance than that with strips in the front part. Detailed discussion is provided to reveal the basic mechanism of such phenomenon. The present numerical work once again shows the correctness of the filed, synergy principle, and useful information is provided on where should the enhancement element be positioned.

Begell Recommend

Electrospinning of Micro- and Nanofibers: Fundamentals in Separation and Filtration Processes Y. Filatov
A. Budyka
V. Kirichenko ISBN Druckformat: 978-1-56700-241-6
ISBN Online: 978-1-56700-240-9

Thermal Radiation in Disperse Systems: An Engineering Approach Leonid A. Dombrovsky
Dominique Baillis ISBN Druckformat: 978-1-567000-268-3
ISBN Online: 978-1-56700-351-2