Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7153378 | Case Studies in Thermal Engineering | 2018 | 12 Pages |
Abstract
In this paper, the heat transfer and flow characteristic of air over flat finned tube with perforated and non-perforated fin have been carried out numerically. The mesh generation and finite volume analyses have been conducted using Ansys 15 with a RNG k-e turbulent model to estimate heat transfer coefficient and pressure drop. The free stream velocity ranging between 3,4,5,6, and 7â¯m/s have been applied for all cases in the simulation and verified with the available data. A satisfactory agreement was found between the percent results and the references with a maximum deviation of 7% for the finned circular tube with solid fin. The results present a considerable enhancement in Nusselt number with using perforation technique, where the perforation provide 8.5%, 13.6% and 18.4% enhancement using circular, square and triangular perforation respectively. Triangular perforation model offers a considerable finding due to the increment in the Nusselt number comparing to the pressure drop.
Related Topics
Physical Sciences and Engineering
Engineering
Mechanical Engineering
Authors
Maki H. Zaidan, Aadel A.R. Alkumait, Thamir K. Ibrahim,