Heat Transfer Performance of a Vibrated Two-Phase Closed Thermosyphon.

Authors

M. Shalaby, Mechanical Power Eng.ineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt, P. O. 35516Follow
G. Sultan, Mechanical Power Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt, P. O. 35516Follow
A. Abdel Salam, Mechanical Power Engineering Department., Faculty of Engineering El-Mansoura University, Egypt, P. O. 35516

Corresponding Author

Sultan, G.

Subject Area

Mechanical Power Engineering

Article Type

Original Study

Abstract

An experimental investigation had been carried out in order to study the heat transfer performance of a vibrated two-phase closed thermosyphon tube. The working fluid used was R143a. The effects of heat flux (1276W/m2 ≤q≤ 6331 W/m2), filling percentage (30%≤V+≤5100%), the vibration dimensionless frequency (1.085≤ F ≤3.26), and the dimensionless amplitude (0.19 ≤ B ≤0.57) were studied. It was found that, the optimum filling percentage and the best dimensionless frequency values are 50% and 1.448, respectively. The Nusselt number had been correlated in a dimensionless form as a function of Kutateladze number, filling ratio, dimensionless frequency, dimensionless amplitude, and reduced pressure ratio.

Keywords

Two-phase closed vibrated thermosyphon; filling ratio

Recommended Citation

Shalaby, M.; Sultan, G.; and Abdel Salam, A. (2021) "Heat Transfer Performance of a Vibrated Two-Phase Closed Thermosyphon.," Mansoura Engineering Journal: Vol. 28 : Iss. 2 , Article 15.
Available at: https://doi.org/10.21608/bfemu.2021.141399