Experimental investigation of effective parameters and correlation of geyser boiling in a two-phase closed thermosyphon

Khazaee, Iman; Hosseini, Reza; Noie, S.H.

doi:10.1016/j.applthermaleng.2009.09.012

Cited by 98 publications

(36 citation statements)

References 5 publications

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“…The study results obtained correlate well with the theoretical and experimental data [7]. The results of an experimental study of methanol boiling in a closed biphasic thermosyphon are given in [8]. We have studied the thermosyphon with a height of 1000 mm and diameter of steam channel of 25mm.…”

Section: Introductionsupporting

confidence: 71%

Mathematical Modelling of Force Convection in a Two–Phase Thermosyphon in Conjugate Formulation

Nurpeiis

Nee

2016

EPJ Web of Conferences

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Abstract.A nonlinear non-stationary problem of the conductive-convective heat transfer is addressed (under forced convection conditions) in the thermosyphon of rectangular crosssection. The thermal energy supply is carried out through the lower horizontal border. The mathematical model is formulated in dimensionless variables of "velocity vorticity vectorcurrent function -temperature". The current and temperature distribution lines are obtained, illustrating the effect of the Reynolds number on the thermodynamic structures formation in the analyzed object.

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Section: Introductionsupporting

confidence: 71%

Mathematical Modelling of Force Convection in a Two–Phase Thermosyphon in Conjugate Formulation

Nurpeiis

Nee

2016

EPJ Web of Conferences

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“…Figure 6 presents a schematic of the geyser boiling phenomenon [17]. When the liquid pool in the evaporator section is gradually heated until it becomes superheated, a vapour bubble grows and expands to the size of the inner diameter of the thermosyphon.…”

Section: Geyser Boilingmentioning

confidence: 99%

“…Khazaee et al [17] experimentally investigated the geyser boiling phenomenon in a two-phase closed thermosyphon for water as a working fluid. They investigated the effects of filling ratio, aspect ratio, heat input and coolant mass flow rate on geyser boiling by testing the period of the geyser boiling.…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional CFD simulation of geyser boiling in a two-phase closed thermosyphon

Jouhara

Fadhl

Wrobel

2016

International Journal of Hydrogen Energy

107

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This paper examines the application of CFD modelling to simulate the complex multiphase characteristics inside a wickless heat pipe (thermosyphon). Water and refrigerant R134a were selected as working fluids. A novel and comprehensive threedimensional CFD model of a wickless heat pipe was developed to simulate both the complex multiphase heat and mass transfer characteristics of boiling and condensation and the heat transfer characteristics of the cooling fluid in the condenser -heat exchanger. The CFD simulation has successfully predicted, for the first time, a boiling regime and two phase flow pattern that takes place with water at low power throughput, known as geyser boiling. The effects of the power throughput on the characteristics of the geyser boiling were investigated. The CFD simulation was also successful in modelling and visualising the multiphase flow characteristics, emphasising the difference in pool boiling behaviour between these working fluids.Temperature profiles and visual validation of the resulting 3D CDF findings were conducted using two experimental facilities.

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“…This last fact might explain why Ong and Haider-E-Alahi [6] and Abou-Ziyan et al [7], having different evaporator, riser and condenser lengths, found different optimal filling ratios. Khazaee et al [9] have investigated the influence of filling on the behaviour of geyser boiling in a two-phase closed thermosyphon and discovered that by increasing the filling, the period of geyser boiling and the intensity of temperature oscillation increased, but when the filling becomes less than 30%, the geyser boiling disappears.…”

Section: Introductionmentioning

confidence: 99%

Measurement of the performances of a transparent closed loop two-phase thermosyphon

Agostini¹,

Habert²

2010

Advanced Computational Methods and Experiments in Heat Transfer XI

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This paper presents measurements performed on a transparent gravity driven twophase loop. For this purpose a small channel thermosyphon was manufactured completely out of borosilicate glass and equipped with a 100 nm semi-transparent ITO layer as a direct current heating evaporator. Thus flow patterns could be observed in the evaporator and at the same time the total thermal resistance was calculated with the heater temperature. Influence of heat flux and filling ratio on the thermal resistance and pressure oscillations were investigated.

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Experimental investigation of effective parameters and correlation of geyser boiling in a two-phase closed thermosyphon

Cited by 98 publications

References 5 publications

Mathematical Modelling of Force Convection in a Two–Phase Thermosyphon in Conjugate Formulation

Mathematical Modelling of Force Convection in a Two–Phase Thermosyphon in Conjugate Formulation

Three-dimensional CFD simulation of geyser boiling in a two-phase closed thermosyphon

Measurement of the performances of a transparent closed loop two-phase thermosyphon

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