High resolution measurements of wall temperature distribution underneath a single vapour bubble under low gravity conditions

Sodtke, Christof; Kern, Jürgen; Schweizer, Nils; Stephan, Peter

doi:10.1016/j.ijheatmasstransfer.2005.07.054

Cited by 66 publications

(27 citation statements)

References 7 publications

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“…This error is due to light rays bending during their propagation through a too large high refractive index gradient area. In order to get rid of this artifact, different groups attempted to localize the CL trough the thermal image in the solid substrate using different methods like thermochromic liquid crystals (Sodtke et al 2006), infrared camera (Golobic et al 2007), several sensor built into the wall (Kim et al 2006). This paper presents a new strategy that allows to get rid of the thermally induced optical errors.…”

Section: Introductionmentioning

confidence: 99%

Nucleate Boiling on a Single Site: Contact Angle Analysis for a Quasi-2D Growing Vapour Bubble

Serret

Guignard

Tadrist

2008

Microgravity Sci. Technol

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Heat transfer prediction under boiling condition is still unresolved. In this paper, a basic study on bubble growth is carried out. Recent works show that contact line region plays an important role for heat and mass transfer in nucleate boiling regime. Three dimension experimental set-up lead to a mirage effect which disturbs measurements. To overcome this problem, a new quasi two dimensional experimental set-up is designed. This Hele-Shaw like configuration allows measuring the contact angle and contact line displacement during the bubble growth. A noticeable behavior of the contact angle is observed, and the influence of the sub-cooling level on the bubble growth rate and the contact angle value is studied.

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Section: Introductionmentioning

confidence: 99%

Nucleate Boiling on a Single Site: Contact Angle Analysis for a Quasi-2D Growing Vapour Bubble

Serret

Guignard

Tadrist

2008

Microgravity Sci. Technol

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“…Previous experiments proved the presence of a strong temperature drop in the heating wall exactly beneath the three phase contact line at the foot of the bubble, see Fig. 2 (Sodtke et al 2006). The goal of RUBI is to compare the results of calculations with experimental data on temperature distribution and bubble shape during a bubble cycle at varying heat fluxes and varying temperature differences between heating wall and bulk liquid.…”

Section: Heat and Mass Transfer Experimentsmentioning

confidence: 68%

International Heat and Mass Transfer Experiments on the 48th ESA Parabolic Flight Campaign of March 2008

Pletser

Pacros

Minster

2008

Microgravity Sci. Technol

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“…Recently, the advent of high-resolution measurement techniques such as thermochromic liquid crystals [1,2], MEMS devices [3][4][5][6][7], and high-speed infrared cameras [8,9] has enabled direct measurement of heat transfer from the heating wall to the liquid or vapor bubble during boiling.…”

Section: Introductionmentioning

confidence: 99%

Interferometric Measurement of the Liquid-Phase Temperature Field around an Isolated Boiling Bubble

Yabuki

Hamaguchi

Nakabeppu

2012

JTST

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In this study, high-speed digital interferometry was used to measure heat transfer from the liquid phase to an isolated boiling bubble on a MEMS boiling sensor. The interferometric measurement results indicated variations in the macroscopic thermal field around the isolated boiling bubble, such as development of a superheated liquid layer on the heating wall, swelling of the superheated liquid layer in the bubble growth process, hot wake accompanied by a rising bubble, and thermal boundary layer around the bubble indicating condensation in subcooled boiling. However, the interferometry could not detect the positive temperature gradient driving the evaporation near the liquid-vapor interface during the bubble growth process, because the spatial resolution of about thirty microns was insufficient. The thickness of the boundary layer driving the evaporation was estimated to be a few dozen microns by a two-dimensional heat transfer simulation with the experimental results as calculation conditions. Finally, an improvement plan of the high-speed interferometer based on the result of the heat transfer analysis was presented.

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High resolution measurements of wall temperature distribution underneath a single vapour bubble under low gravity conditions

Cited by 66 publications

References 7 publications

Nucleate Boiling on a Single Site: Contact Angle Analysis for a Quasi-2D Growing Vapour Bubble

Nucleate Boiling on a Single Site: Contact Angle Analysis for a Quasi-2D Growing Vapour Bubble

International Heat and Mass Transfer Experiments on the 48th ESA Parabolic Flight Campaign of March 2008

Interferometric Measurement of the Liquid-Phase Temperature Field around an Isolated Boiling Bubble

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