Heat Transfer Performance of a Vibrated Two-Phase Closed Thermosyphon. | ||||
MEJ- Mansoura Engineering Journal | ||||
Article 15, Volume 28, Issue 2, June 2003, Page 133-145 PDF (253.15 K) | ||||
Document Type: Research Studies | ||||
DOI: 10.21608/bfemu.2021.141399 | ||||
View on SCiNiTO | ||||
Authors | ||||
M. A. Shalaby1; G. I. Sultan 2; A. Abdel Salam3 | ||||
1Mechanical Power Eng.ineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt, P. O. 35516 | ||||
2Mechanical Power Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt, P. O. 35516 | ||||
3Mechanical Power Engineering Department., Faculty of Engineering El-Mansoura University, Egypt, P. O. 35516 | ||||
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 | ||||
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