Experimentaland numerical investigation of liquid metal boiling in fuel subassemblies under natural circulation conditions

Sorokin, G. A.; Sorokin, A. A.

doi:10.1016/j.pnucene.2005.05.069

Cited by 7 publications

(6 citation statements)

References 2 publications

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“…The oscillations during boiling showed relatively steady characteristics for the single loop configuration (SR experiment modeling) 12) . Such characteristics did not occur in the parallel bundles configuration.…”

Section: Discussionmentioning

confidence: 98%

“…Acquisition, treatment and the recording of the experimental data 10,12) were accomplished in digital form by means of an automated control system for thermohydraulic investigations. This system was developed on a PC platform with the corresponding software to collect and treat the data.…”

Section: Experimental Apparatusmentioning

confidence: 99%

“…A preliminary discussion and the numerical simulation of the single channel experiment SR were previously reported. 10,12) In this work the parallel channel experiment (P1), utilizing both subassemblies under equal heating conditions, was considered. The cooler (see Fig.…”

Section: Start-up Of Experimentsmentioning

confidence: 99%

“…The self-oscillations of the thermohydraulic parameters have small amplitude and a period of about 3 sec., being therefore similar to the conditions that would appear in a single bundle case. A typical measurement of flow rate for a single bundle experiment 12) is shown in Fig. 7.…”

Section: Boiling Historymentioning

confidence: 99%

“…7). 12) These large scale oscillations is a consequence of pressure waves propagation, derived from the reciprocal enhancement due to hydraulic interaction of parallel channels, causing periodic reductions of flow rate. In extreme cases it could lead to insufficient cooling and consequent thermal crisis.…”

Section: Boiling Historymentioning

confidence: 99%

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Experimental and Numerical Study of Liquid Metal Boiling in a System of Parallel Bundles under Natural Circulation Conditions

Sorokin

Ninokata

Sorokin

et al. 2006

Journal of Nuclear Science and Technology

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Numerical simulation of boiling of Na-K eutectic alloy (22% Na; 78% K) in a parallel channel system under natural circulation conditions is presented in this work. The calculations pertain to an experimental analysis conducted at the AR-1 facility of IPPE (Russia), analyzing the reactor core coolabilty under severe thermal conditions. The geometrical and operational characteristics reproduce those typical of Russian FBRs. A thermohydraulic code system based on a subchannel analysis code has been developed and adopted for the simulation. Comparisons show that the adopted numerical procedure is capable of reproducing the boiling phenomena inside the parallel bundle test section, correctly predicting the heat transfer conditions prior to and during the boiling. Experimental as well as computational results show the marked influence of the parallel channel interaction, evidenced by the appearance of severe flow oscillations. The results confirm that stable heat removal is provided throughout the entire transient.

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Section: Discussionmentioning

confidence: 98%

Section: Experimental Apparatusmentioning

confidence: 99%

Section: Start-up Of Experimentsmentioning

confidence: 99%

Section: Boiling Historymentioning

confidence: 99%

Section: Boiling Historymentioning

confidence: 99%

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