An Acoustic Method of Investigation of the Process of Boiling

Dorofeev, B. M.; Volkova, V. I.

doi:10.1007/s10740-005-0104-6

Cited by 12 publications

(11 citation statements)

References 5 publications

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“…On its basis, the hydrodynamic, thermodynamic, acoustic dependences of the vapour bubble growth were obtained, and then the bound correlations of all these dependences were derived. This paper is a continuation and completion of the previous research [1][2][3][4][5][6][7][8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 82%

“…In [1][2][3][4][5][6][7][8][9][10][11][12][13][14], an analytically rigorous derivation of the formulae of absolute values of variables presented in Table 1 on the left is presented: the radius of the vapour bubble, the velocity and acceleration with its growth, the specific and total heat flux through the interphase surface of the bubble, the liquid overheating and the heat transfer coefficient, sound pressure for one-and three-dimensional cases.…”

Section: Hydrodynamic Thermodynamic and Acoustic Dependenciesmentioning

confidence: 99%

“…Each of the formulae (1), (2), ..., (9) in Table 1 on the right represents each of the dependencies (1a), (2a), ..., (9a), respectively on a relative scale. The substitution…”

Section: Relative Valuesmentioning

confidence: 99%

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Hydrodynamics, thermodynamics, and acoustics of exponential growth of the vapor bubbles at saturated boiling

Dorofeev

Volkova

2017

J. Phys.: Conf. Ser.

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Abstract. The results of earlier performed work are summarized. Formulae for the absolute values of the following variables: the radius of the vapour bubble, the velocity and acceleration of its growth, the specific and total heat flux through the interphase surface of the bubble, the liquid overheating and the heat transfer coefficient, sound pressure in one-and threedimensional cases are presented. On their basis, the relationship between the relative values of the pairs of these variables because of time elimination is derived.

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Section: Introductionmentioning

confidence: 82%

Section: Hydrodynamic Thermodynamic and Acoustic Dependenciesmentioning

confidence: 99%

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Hydrodynamics, thermodynamics, and acoustics of exponential growth of the vapor bubbles at saturated boiling

Dorofeev

Volkova

2017

J. Phys.: Conf. Ser.

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“…Methodology of calculation can be combined with recording of boiling signals during quenching that provides high quality of controlling the technological processes. Investigations on recording boiling signal during quenching are widely discussed in Refs [18,[19][20][21]. Also, author of the paper suggests using Inconel 600 probe combined with the Liscic/ Petrofer probe to develop DATABASE for liquid quenchant to be used for computer simulation and recipes development.…”

Section: Discussionmentioning

confidence: 99%

Investigation of Transient Nucleate Boiling Processes and Their Practical Use in Heat Treating Industry

Kobasko¹

2017

EUREKA: Physics and Engineering

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In the paper transient nucleate boiling process is widely discussed. It’s unknown previously and investigated by author characteristics create a basis for designing of new technologies which allow receiving super strengthened materials. Obtained results are also used for appropriate software development to be widely applied for control of technological processes and cooling recipes design. A possibility of transition from real heat transfer coefficients (HTCs) to effective HTCs is discussed in the paper too. It is shown that core temperature of steel parts at the end of transient nucleate boiling (self-regulated thermal process (SRTP)) is a linear function of a part dimension when convective heat transfer coefficient during quenching in liquid media is fixed. Also, it is shown that effective Kondrtajev number Kn is a function of part size and convection intensity and is almost linear function for large sizes of steel parts. Surface temperature at the beginning of self-regulated thermal process and at its end is calculated depending on size and intensity of cooling. Based on obtained new results, it is possible to design DATABASE for liquid quenchants using standard Inconel 600 probe combined with the Liscic/Petrofer probe. Obtained results can be useful for engineers and software designers.

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“…ITL will develop such data. Also, a very useful information on this subject is available in published papers [15][16][17][18][19][20][21][22]. However, local film boiling processes are investigated not deeply and widely enough.…”

Section: Reports On Research Projectsmentioning

confidence: 99%

Investigation of Batch Intensive Quenching Processes When Using Hydrodynamic Emitters in Quench Tanks

Kobasko¹

2016

EUREKA: Physics and Engineering

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The paper discusses patented in Ukraine a new intensive quenching IQ–2 technology based on film boiling resonance effect [1]. Namely, the paper discusses improving of the batch intensive quenching (IQ) process known as IQ-2 method by the use of hydrodynamic emitters installed in quench tanks. The hydrodynamic emitters produce oscillating waves in the quench media with the frequency of the film boiling process creating a resonance effect. Two- and three-step IQ-2 processes are considered. Specifics of the heat transfer during the IQ-2 process are presented with focusing on the first stage of quenching where film and nucleate boiling processes are taking place. Examples of production IQ-2 equipment and loads processed are also presented. Application of hydrodynamic emitters in the IQ water tanks in addition to currently used propellers is considered in details. It is shown that the proposed new method can fully eliminate the film boiling process resulting in significant reduction of part distortion during quenching. Further evaluation of the proposed method is needed for its implementation in heat treating practice.

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An Acoustic Method of Investigation of the Process of Boiling

Cited by 12 publications

References 5 publications

Hydrodynamics, thermodynamics, and acoustics of exponential growth of the vapor bubbles at saturated boiling

Hydrodynamics, thermodynamics, and acoustics of exponential growth of the vapor bubbles at saturated boiling

Investigation of Transient Nucleate Boiling Processes and Their Practical Use in Heat Treating Industry

Investigation of Batch Intensive Quenching Processes When Using Hydrodynamic Emitters in Quench Tanks

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