Uncertainty and Sensitivity Studies with TRACE-SUSA and TRACE-DAKOTA by Means of Transient BFBT Data
Joint Authors
Sánchez Espinoza, Victor Hugo
Queral, Cesar
Jaeger, Wadim
Montero Mayorga, Francisco Javier
Source
Science and Technology of Nuclear Installations
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-02-28
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Engineering Sciences and Information Technology
Abstract EN
In the present paper, an uncertainty and sensitivity study is performed for transient void fraction and pressure drop measurements.
Two transients have been selected from the NUPEC BFBT database.
The first one is a turbine trip without bypass and the second one is a trip of a recirculation pump.
TRACE (version 5.0 patch 2) is used for the thermohydraulic study and SUSA and DAKOTA are used for the quantification of the model uncertainties and the evaluation of the sensitivities.
As uncertain parameters geometrical values, hydraulic diameter, and wall roughness are considered while mass flow rate, power, pressure, and inlet subcooling (inlet temperature) are chosen as boundary and input conditions.
Since these parameters change with time, it is expected that the importance of them on pressure drop and void fraction will change, too.
The results show that the pressure drop is mostly sensitive to geometrical variations like the hydraulic diameter and the form loss coefficient of the spacer grid.
For low void fractions, the parameter of the highest importance is the inlet temperature/subcooling while at higher void fraction the power is also of importance.
American Psychological Association (APA)
Jaeger, Wadim& Sánchez Espinoza, Victor Hugo& Montero Mayorga, Francisco Javier& Queral, Cesar. 2013. Uncertainty and Sensitivity Studies with TRACE-SUSA and TRACE-DAKOTA by Means of Transient BFBT Data. Science and Technology of Nuclear Installations،Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-481218
Modern Language Association (MLA)
Jaeger, Wadim…[et al.]. Uncertainty and Sensitivity Studies with TRACE-SUSA and TRACE-DAKOTA by Means of Transient BFBT Data. Science and Technology of Nuclear Installations No. 2013 (2013), pp.1-9.
https://search.emarefa.net/detail/BIM-481218
American Medical Association (AMA)
Jaeger, Wadim& Sánchez Espinoza, Victor Hugo& Montero Mayorga, Francisco Javier& Queral, Cesar. Uncertainty and Sensitivity Studies with TRACE-SUSA and TRACE-DAKOTA by Means of Transient BFBT Data. Science and Technology of Nuclear Installations. 2013. Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-481218
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-481218