Improvement of Critical Heat Flux Correlation for Research Reactors using Plate-Type Fuel

Kaminaga, Masanori; Yamamoto, Kazuyoshi; Sudo, Yukio

doi:10.1080/18811248.1998.9733966

Cited by 31 publications

(16 citation statements)

References 5 publications

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“…The critical heat flux is calculated with the Sudo-Kaminaga correlation [2], as was done previously [3]. For steady-state conditions, the dimensionless critical heat flux * is defined as:…”

Section: Critical Heat Flux (Q Chf )mentioning

confidence: 99%

Statistical Hot Channel Analysis for the NBSR

Cuadra¹,

Baek²

2014

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A statistical analysis of thermal limits has been carried out for the research reactor (NBSR) at the National Institute of Standards and Technology (NIST). The objective of this analysis was to update the uncertainties of the hot channel factors with respect to previous analysis for both high-enriched uranium (HEU) and low-enriched uranium (LEU) fuels. Although uncertainties in key parameters which enter into the analysis are not yet known for the LEU core, the current analysis uses reasonable approximations instead of conservative estimates based on HEU values.Cumulative distribution functions (CDFs) were obtained for critical heat flux ratio (CHFR), and onset of flow instability ratio (OFIR). As was done previously, the Sudo-Kaminaga correlation was used for CHF and the Saha-Zuber correlation was used for OFI. Results were obtained for probability levels of 90%, 95%, and 99.9%.

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“…The critical heat flux is calculated with the Sudo-Kaminaga correlation [2], as was done previously [3]. For steady-state conditions, the dimensionless critical heat flux * is defined as:…”

Section: Critical Heat Flux (Q Chf )mentioning

confidence: 99%

Statistical Hot Channel Analysis for the NBSR

Cuadra¹,

Baek²

2014

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“…The CHF correlation of Sudo and Kaminago 15,31 is sometimes used in the assessment of CHF in research reactors. It is a relatively recent correlation that was developed for analyzing flow in rectangular research reactor channels.…”

Section: C Sudo and Kaminaga Chf Correlationmentioning

confidence: 99%

“…The extended Groeneveld 2006 CHF correlation, equation 3, is represented in the code. The Sudo and Kaminaga 15,31 and the Bernath 6 CHF correlations are also represented.…”

Section: The Pltemp/anl Code 38mentioning

confidence: 99%

“…The full PLTEMP/ANL model of the limiting case of the LEU CD35 core was also used to predict the margin to CHF based on the Sudo and Kaminaga CHF Correlation 15,31 . The predicted CHF power was only 18.19 MW, which is only 6.4% greater than the flow instability power predicted with equation 1 and is considerably less than the 31.26 MW predicted with the recommended extended Groeneveld 2006 CHF Table correlation.…”

Section: I Margin To Flow Instability Relative To Lsss Valuesmentioning

confidence: 99%

“…Since all of the channels are end channels, each has only one heated surface. 15,31 As indicated in section 6c, the Sudo and Kaminaga correlation 15,31 was used to predict CHF for the limiting LEU CD35 core case. The PLTEMP/ANL analysis for case 7A1 at the LSSS conditions of flow rate, inlet temperature, and pressurizer pressure and level was repeated with the Sudo and Kaminaga CHF correlation used in place of the extended Groeneveld 2006 CHF correlation.…”

mentioning

confidence: 99%

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