The Accuracy Quantification of Thermal-Hydraulic Code Predictions

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PROŠEK, Andrej ;MAVKO, Borut .
The Accuracy Quantification of Thermal-Hydraulic Code Predictions. 
Strojniški vestnik - Journal of Mechanical Engineering, [S.l.], v. 49, n.4, p. 208-229, july 2017. 
ISSN 0039-2480.
Available at: <https://www.sv-jme.eu/article/the-accuracy-quantification-of-thermal-hydraulic-code-predictions/>. Date accessed: 14 aug. 2020. 
doi:http://dx.doi.org/.
Prošek, A., & Mavko, B.
(2003).
The Accuracy Quantification of Thermal-Hydraulic Code Predictions.
Strojniški vestnik - Journal of Mechanical Engineering, 49(4), 208-229.
doi:http://dx.doi.org/
@article{.,
	author = {Andrej  Prošek and Borut  Mavko},
	title = {The Accuracy Quantification of Thermal-Hydraulic Code Predictions},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {49},
	number = {4},
	year = {2003},
	keywords = {code accuracy; thermal hydraulic code; SARBM; BETHSY; },
	abstract = {Recently, significant attention has been paid to code accuracy issues in predicting the dynamic responses of nuclear reactor systems. Though significant progress has been made, only a few reliable and general tools to quantify code accuracy are available. A new Stochastic Approximation Ratio Based Method (SARBM) was proposed for accuracy quantification. The objective of this study was to investigate and qualify the proposed method. The RELAP5/MOD3.2 thermal-hydraulic code calculations and the BETHSY experimental data were used in the process of qualifying the SARBM with a Fast Fourier Transform Based Method (FFTBM). The obtained results showed that the SARBM was able to satisfactorily predict the accuracy of the calculated transient trends when visually comparing plots and comparing the results with the results obtained by the qualified FFTBM. A new figure of merit for code accuracy, called the accuracy factor (AF), was proposed instead of the stochastic approximation ratio to make the total accuracy calculation with the SARBM more like the FFTBM approach. The accuracy results obtained for the selected BETHSY tests suggest combining the SARBM with the FFTBM for accuracy quantification rather than using it independently.},
	issn = {0039-2480},	pages = {208-229},	doi = {},
	url = {https://www.sv-jme.eu/article/the-accuracy-quantification-of-thermal-hydraulic-code-predictions/}
}
Prošek, A.,Mavko, B.
2003 July 49. The Accuracy Quantification of Thermal-Hydraulic Code Predictions. Strojniški vestnik - Journal of Mechanical Engineering. [Online] 49:4
%A Prošek, Andrej 
%A Mavko, Borut 
%D 2003
%T The Accuracy Quantification of Thermal-Hydraulic Code Predictions
%B 2003
%9 code accuracy; thermal hydraulic code; SARBM; BETHSY; 
%! The Accuracy Quantification of Thermal-Hydraulic Code Predictions
%K code accuracy; thermal hydraulic code; SARBM; BETHSY; 
%X Recently, significant attention has been paid to code accuracy issues in predicting the dynamic responses of nuclear reactor systems. Though significant progress has been made, only a few reliable and general tools to quantify code accuracy are available. A new Stochastic Approximation Ratio Based Method (SARBM) was proposed for accuracy quantification. The objective of this study was to investigate and qualify the proposed method. The RELAP5/MOD3.2 thermal-hydraulic code calculations and the BETHSY experimental data were used in the process of qualifying the SARBM with a Fast Fourier Transform Based Method (FFTBM). The obtained results showed that the SARBM was able to satisfactorily predict the accuracy of the calculated transient trends when visually comparing plots and comparing the results with the results obtained by the qualified FFTBM. A new figure of merit for code accuracy, called the accuracy factor (AF), was proposed instead of the stochastic approximation ratio to make the total accuracy calculation with the SARBM more like the FFTBM approach. The accuracy results obtained for the selected BETHSY tests suggest combining the SARBM with the FFTBM for accuracy quantification rather than using it independently.
%U https://www.sv-jme.eu/article/the-accuracy-quantification-of-thermal-hydraulic-code-predictions/
%0 Journal Article
%R 
%& 208
%P 22
%J Strojniški vestnik - Journal of Mechanical Engineering
%V 49
%N 4
%@ 0039-2480
%8 2017-07-07
%7 2017-07-07
Prošek, Andrej, & Borut  Mavko.
"The Accuracy Quantification of Thermal-Hydraulic Code Predictions." Strojniški vestnik - Journal of Mechanical Engineering [Online], 49.4 (2003): 208-229. Web.  14 Aug. 2020
TY  - JOUR
AU  - Prošek, Andrej 
AU  - Mavko, Borut 
PY  - 2003
TI  - The Accuracy Quantification of Thermal-Hydraulic Code Predictions
JF  - Strojniški vestnik - Journal of Mechanical Engineering
DO  - 
KW  - code accuracy; thermal hydraulic code; SARBM; BETHSY; 
N2  - Recently, significant attention has been paid to code accuracy issues in predicting the dynamic responses of nuclear reactor systems. Though significant progress has been made, only a few reliable and general tools to quantify code accuracy are available. A new Stochastic Approximation Ratio Based Method (SARBM) was proposed for accuracy quantification. The objective of this study was to investigate and qualify the proposed method. The RELAP5/MOD3.2 thermal-hydraulic code calculations and the BETHSY experimental data were used in the process of qualifying the SARBM with a Fast Fourier Transform Based Method (FFTBM). The obtained results showed that the SARBM was able to satisfactorily predict the accuracy of the calculated transient trends when visually comparing plots and comparing the results with the results obtained by the qualified FFTBM. A new figure of merit for code accuracy, called the accuracy factor (AF), was proposed instead of the stochastic approximation ratio to make the total accuracy calculation with the SARBM more like the FFTBM approach. The accuracy results obtained for the selected BETHSY tests suggest combining the SARBM with the FFTBM for accuracy quantification rather than using it independently.
UR  - https://www.sv-jme.eu/article/the-accuracy-quantification-of-thermal-hydraulic-code-predictions/
@article{{}{.},
	author = {Prošek, A., Mavko, B.},
	title = {The Accuracy Quantification of Thermal-Hydraulic Code Predictions},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {49},
	number = {4},
	year = {2003},
	doi = {},
	url = {https://www.sv-jme.eu/article/the-accuracy-quantification-of-thermal-hydraulic-code-predictions/}
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TY  - JOUR
AU  - Prošek, Andrej 
AU  - Mavko, Borut 
PY  - 2017/07/07
TI  - The Accuracy Quantification of Thermal-Hydraulic Code Predictions
JF  - Strojniški vestnik - Journal of Mechanical Engineering; Vol 49, No 4 (2003): Strojniški vestnik - Journal of Mechanical Engineering
DO  - 
KW  - code accuracy, thermal hydraulic code, SARBM, BETHSY, 
N2  - Recently, significant attention has been paid to code accuracy issues in predicting the dynamic responses of nuclear reactor systems. Though significant progress has been made, only a few reliable and general tools to quantify code accuracy are available. A new Stochastic Approximation Ratio Based Method (SARBM) was proposed for accuracy quantification. The objective of this study was to investigate and qualify the proposed method. The RELAP5/MOD3.2 thermal-hydraulic code calculations and the BETHSY experimental data were used in the process of qualifying the SARBM with a Fast Fourier Transform Based Method (FFTBM). The obtained results showed that the SARBM was able to satisfactorily predict the accuracy of the calculated transient trends when visually comparing plots and comparing the results with the results obtained by the qualified FFTBM. A new figure of merit for code accuracy, called the accuracy factor (AF), was proposed instead of the stochastic approximation ratio to make the total accuracy calculation with the SARBM more like the FFTBM approach. The accuracy results obtained for the selected BETHSY tests suggest combining the SARBM with the FFTBM for accuracy quantification rather than using it independently.
UR  - https://www.sv-jme.eu/article/the-accuracy-quantification-of-thermal-hydraulic-code-predictions/
Prošek, Andrej, AND Mavko, Borut.
"The Accuracy Quantification of Thermal-Hydraulic Code Predictions" Strojniški vestnik - Journal of Mechanical Engineering [Online], Volume 49 Number 4 (07 July 2017)

Authors

Affiliations

  • Institute Jožef Štefan, Ljubljana, Slovenia
  • Institute Jožef Štefan, Ljubljana, Slovenia

Paper's information

Strojniški vestnik - Journal of Mechanical Engineering 49(2003)4, 208-229

Recently, significant attention has been paid to code accuracy issues in predicting the dynamic responses of nuclear reactor systems. Though significant progress has been made, only a few reliable and general tools to quantify code accuracy are available. A new Stochastic Approximation Ratio Based Method (SARBM) was proposed for accuracy quantification. The objective of this study was to investigate and qualify the proposed method. The RELAP5/MOD3.2 thermal-hydraulic code calculations and the BETHSY experimental data were used in the process of qualifying the SARBM with a Fast Fourier Transform Based Method (FFTBM). The obtained results showed that the SARBM was able to satisfactorily predict the accuracy of the calculated transient trends when visually comparing plots and comparing the results with the results obtained by the qualified FFTBM. A new figure of merit for code accuracy, called the accuracy factor (AF), was proposed instead of the stochastic approximation ratio to make the total accuracy calculation with the SARBM more like the FFTBM approach. The accuracy results obtained for the selected BETHSY tests suggest combining the SARBM with the FFTBM for accuracy quantification rather than using it independently.

code accuracy; thermal hydraulic code; SARBM; BETHSY;