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Avdeev, A. A.; Balunov, B. F.; Rybin, R. A.; Soziev, R. I.; Филиппов, Г. А.

doi:10.1023/a:1024246728189

Cited by 13 publications

(22 citation statements)

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“…Therefore, an experimental investigation of hydrodynamic drag under conditions of flow of a two-phase mixture in a pebble bed, the first stage of which was described in [5], is quite timely. This paper, which is a continuation and further development of [5], gives the results of experiments involving hydrodynamic drag in a pebble bed under conditions of flow of air, water, and steam-water mixture in a wide range of variation of pressure, mass velocity, and steam quality.…”

Section: Introductionmentioning

confidence: 99%

Hydrodynamic drag of a flow of steam-water mixture in a pebble bed

Avdeev

Balunov²,

Zudin

et al. 2006

High Temp

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An experimental investigation is performed of hydrodynamic drag under conditions of flow of a steam-water mixture in a pebble bed for wide ranges of variation of the process parameters, namely, pressure from 0.9 to 15.6 MPa, mass velocity in the pebble bed from 107 to 770 kg/(m 2 s), and steam quality from zero to 0.48. The measurement results are given in the table. The experimental data are given in the form of the pressure loss ratio for the flow of steam-water mixture and water at the same flow rates. It is demonstrated that this quantity is in fact independent of the mass velocity and, for each fixed value of pressure, may be described by the linear function of steam quality.

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Section: Introductionmentioning

confidence: 99%

Hydrodynamic drag of a flow of steam-water mixture in a pebble bed

Avdeev

Balunov²,

Zudin

et al. 2006

High Temp

Self Cite

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“…x For the first time experimental data on the thermohydraulic parameters on the FA MT model have been obtained; x Experimental data on the flow in a cylindrical backfill supplemented and expanded the available data of other authors and confirmed the correctness of calculations using the empirical formulas [4,5].…”

Section: Resultsmentioning

confidence: 63%

“…These losses made a significant contribution to the overall pressure loss. To exclude this effect, pressure taps have been transferred directly to the dispenser (1) and collecting receiver (5).…”

Section: Test Sectionsmentioning

confidence: 99%

Investigation of flow parameters in a cylindrical pebble bed and in a model of a fuel assembly with microfuels

et al. 2017

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Abstract.The results of an experimental study of the hydrodynamics and heat transfer of a pebble bed in a cylindrical channel and in a model of a fuel assembly with microfuels (FA MT) with a cross flow of a coolant are presented. Data on the temperature distribution along the height and the pebble radius for volumetric heat release, as well as data on pressure losses over a wide range of mass flow rates of the coolant from 0.05 to 1.75 kg/s are obtained.

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“…This makes some authors use in such a case the known relationships obtained for two-phase flows, which, according to these authors, are similar in nature. For example in [6] the slip ratio calculation is based on the recommendation for an adiabatic flow of vapor-water mixture in vertical pipes of a small diameter and ring ducts 0.38…”

Section: Theoretical Modelmentioning

confidence: 99%

“…The analogy between the flow of a one-phase compressible medium and the flow of a two-phase mixture is used to study a critical flow through the nozzles, diaphragms and short pipes in [4]. The authors of [5,6] applied this analogy to the vapor-liquid mixture flow in the packed beds of solid particles to determine pressure drop. In the present research the isenthalpic expansion of the two-phase mixture is approximated by the equation of polytropic process.…”

Section: Introductionmentioning

confidence: 99%

A polytropic model of a critical two-phase flow in a bed of spherical particles

Tairov

Khan

2017

MATEC Web Conf.

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Abstract. The paper is concerned with a model of isenthalpic flow of vapor-water mixture in a fixed bed of solid particles. The mixture expansion process is considered to be polytropic. Similarly to the known problem of gas dynamics of a granular bed we obtained the relationships for calculation of a critical mass velocity. The results of the calculation based on a theoretical model are compared with the experimental data obtained in the packed beds of steel balls, 2 mm and 4 mm in diameter.

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Cited by 13 publications

References 0 publications

Hydrodynamic drag of a flow of steam-water mixture in a pebble bed

Hydrodynamic drag of a flow of steam-water mixture in a pebble bed

Investigation of flow parameters in a cylindrical pebble bed and in a model of a fuel assembly with microfuels

A polytropic model of a critical two-phase flow in a bed of spherical particles

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