Research Information System
24th CONGRESS ON THERMAL SCIENCE AND TECHNOLOGY WITH INTERNATIONAL PARTICIPATION, Ankara, Turkey, 06 September 2023 - 08 January 2024, vol.2, pp.885-892
Heat exchangers are devices designed to transfer the heat of one fluid to another fluid. These devices play
an important role in heat transfer processes used to increase or decrease the temperature of a fluid. In this study,
numerical analyzes have been carried out to examine the heat transfer properties of the fluid passing through the heat
exchanger tube on which perforated conical rings have been added. Straight pipe, conical ring pipe, 2-hole conical
ring pipe, and 4-hole conical ring pipe have been used in the analysis. In the analyzes made, the inlet diameter of the
conical rings has been determined as 60 mm, the outlet diameter as 30 mm, and the hole diameter as 5 mm. Analyzes
- has been
chosen as the turbulence model. Nusselt number and friction factor values obtained from the results of analyzes using
different geometries have been compared with each other. In addition, the results of the calculations using the 4-hole
conical ring pipe have been compared with the experimental data in the literature. It has been seen that the data
obtained from the analyzes made as a result of the validation have been compatible with the experimental data. As a
result, it shows that the highest thermal efficiency in terms of heat transfer has been obtained from the analyzes using
a 4-hole conical ring pipe among the selected geometries. The main reason for this is thought to be stronger
turbulence intensity and flow disturbance near the core regions.