Development of a thermal-hydraulic analysis code for annular fuel assemblies
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A. K. Vishnoi
Abstract
In this work a detailed study of the annular fuel has been carried out. A thermal hydraulics code, ANUFAN (Annular Fuel Analysis), based on the bundle average method, capable of modeling both internally and externally cooled annular fuel pins is developed. Code predictions have been compared with calculations from Korea Atomic Energy Research Institute (KAERI) and MIT. Heat transfer fraction difference between ANUFAN and RELAP was found about 1.7%. Analysis of a 54 – fuel rod assembly is carried out with 36 and 45 numbers of annular fuel pins keeping the same channel size and bundle power as of the solid fuel assembly. Fuel pin maximum temperature of the annular fuel is found much less than the solid fuel. MCHFR value for annular fuel is found much higher compared to that of the solid fuel of 54 – fuel rod assembly. The full paper covers the details of the computer code, the analysis carried out and the results obtained.
Kurzfassung
In diesem Beitrag wird über eine Studie zu ringförmigen Brennelementanordnungen berichtet. Ein thermohydraulischer Rechencode, ANUFAN (Annular Fuel Analysis), kann sowohl intern wie auch extern gekühlte ringförmig angeordneter Brennstäbe modellieren. Die Code Vorhersagen wurden verglichen mit Rechenergebnisse des Korea Atomic Energy Research Institute (KAERI) und des MIT. Ein Unterschied der Wärmetransferanteile von etwa 1,7% zwischen ANUFAN and RELAP Rechencodes wurde gefunden. Die Analyse einer Anordnung von 54 Brennstäben wurde durchgeführt mit einer Anzahl von 36 und 45 Brennstäben mit der gleichen Kanalgröße und Bündelleistung wie die feste Brennstoffanordnung. Dabei wurde festgestellt, dass der MCHFR Wert der ringförmig angeordneten Brennelemente viel kleiner ist als der der festen Anordnung von 54 Brennstäben. Der Beitrag berichtet über Einzelheiten des Rechencodes, der durchgeführten Analyse sowie über die erhaltenen Ergebnisse.
References
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© 2012, Carl Hanser Verlag, München
Articles in the same Issue
- Contents/Inhalt
- Contents
- Summaries/Kurzfassungen
- Summaries
- Technical Contributions/Fachbeiträge
- Analytical assessment for stress corrosion fatigue of CANDU fuel elements under load following conditions
- Development of a thermal-hydraulic analysis code for annular fuel assemblies
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- Computational fluid dynamics validation study of steam condensation on the containment walls
- CFD analysis of a hydraulic valve for cavitating flow
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- Solution of the radiative transfer equation with the successive order scattering transport approximation and its application to a biological medium
- Solving the constant source problem for the quadratic anisotropic scattering kernel using the modified FN method
- Application of the Laplace transform method for computational modelling of radioactive decay series
- A standing wave reactor by continuous radial fuel shuffling
- Technical Notes/Technische Mitteilungen
- On the radial flux shape of a fast standing wave reactor operated by radial fuel shuffling
Articles in the same Issue
- Contents/Inhalt
- Contents
- Summaries/Kurzfassungen
- Summaries
- Technical Contributions/Fachbeiträge
- Analytical assessment for stress corrosion fatigue of CANDU fuel elements under load following conditions
- Development of a thermal-hydraulic analysis code for annular fuel assemblies
- Reduction of fluid property errors of various thermohydraulic codes for supercritical water systems
- Computational fluid dynamics validation study of steam condensation on the containment walls
- CFD analysis of a hydraulic valve for cavitating flow
- Thermal plume behaviour in the Kadra reservoir at Kaiga atomic power station – Part 2: studies for the case of four and six units in operation
- 124I production for PET imaging at a cyclotron
- Investigation of ground state features of some medical radionuclides
- Solution of the radiative transfer equation with the successive order scattering transport approximation and its application to a biological medium
- Solving the constant source problem for the quadratic anisotropic scattering kernel using the modified FN method
- Application of the Laplace transform method for computational modelling of radioactive decay series
- A standing wave reactor by continuous radial fuel shuffling
- Technical Notes/Technische Mitteilungen
- On the radial flux shape of a fast standing wave reactor operated by radial fuel shuffling
