2012
DOI: 10.1155/2012/465059
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Validation of the Subchannel Code SUBCHANFLOW Using the NUPEC PWR Tests (PSBT)

Abstract: SUBCHANFLOW is a computer code to analyze thermal-hydraulic phenomena in the core of pressurized water reactors, boiling water reactors, and innovative reactors operated with gas or liquid metal as coolant. As part of the ongoing assessment efforts, the code has been validated by using experimental data from the NUPEC PWR Subchannel and Bundle Tests (PSBT). The database includes single-phase flow bundle outlet temperature distributions, steady state and transient void distributions and critical power measureme… Show more

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Cited by 60 publications
(14 citation statements)
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“…In this section work we describe the COTENP code to calculate the thermal-hydraulic parameters of nuclear reactors with plate type fuel elements. To represent the tridimensional behavior of the core we combine the subchannel approach and the cascade method in a two stage scheme as shown in Figure 1 [2,5,13,27]. In the first stage the core is divided into subchannels with size equivalent to a fuel assembly.…”
Section: Methods For the Cotenp Codementioning
confidence: 99%
See 1 more Smart Citation
“…In this section work we describe the COTENP code to calculate the thermal-hydraulic parameters of nuclear reactors with plate type fuel elements. To represent the tridimensional behavior of the core we combine the subchannel approach and the cascade method in a two stage scheme as shown in Figure 1 [2,5,13,27]. In the first stage the core is divided into subchannels with size equivalent to a fuel assembly.…”
Section: Methods For the Cotenp Codementioning
confidence: 99%
“…Most subchannel analysis codes were developed for rod type fuels and fewer are dedicated to plate type geometry. Many belong to the COBRA family evolving from the first ones developed in the 1970s [11][12][13][14][15][16][17][18][19]. The COBRA-3C/RERTR code is an example of such developments applied for plate type fuel research and test reactors with low pressure [17].…”
Section: Introductionmentioning
confidence: 99%
“…As computational power becomes more easily accessible, the modelling industry is likely to incorporate these methods more. Recent developments have seen a short transient being performed in 3D by coupling Serpent [25], a Monte Carlo neutron transport solver and SUBCHANFLOW [26], a subchannel code this project produced a pin by pin power profile of a small core during a reactivity control insertion [27]. The computational power required was 1000 cores, which is currently seen as inaccessible to most industrial institutions; however, two decades ago, this achievement would have been thought to be impossible.…”
Section: Countrymentioning
confidence: 99%
“…The ability to integrate sub-channel and system code in one software product [3], as well as relatively low requirements for computer resources [4], are the advantages of this approach. The main disadvantage of this approach is the need to determine the closing relations, in particular, the coefficients of interchannel mixing ratio, which directly depend on the corresponding geometry and flow regime [3][4][5][6]. These relations are not directly derived from the three-dimensional equations for the flow and should be determined mainly experimentally for similar conditions.…”
Section: Introductionmentioning
confidence: 99%