Modeling the Statics of a Natural-Circulation Boiling Water Reactor Loop

A model is developed that enables the determination of steady-state values of all system variables of the boiling water reactor simulator loop DESIRE. The model calculates natural-circulation mass flow rate, subcooling, carry-under, and feedwater flow rate from the three independent variables: power...

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Bibliographic Details
Published in:Nuclear technology 1999-07, Vol.127 (1), p.38-48
Main Authors: Kok, Haico V., van der Hagen, Tim H. J. J.
Format: Article
Language:English
Subjects:
Applied sciences
Atmospherics
Computational methods
Computer simulation
Cooling
Correlation methods
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Fission nuclear power plants
Friction
Hydraulics
Installations for energy generation and conversion: thermal and electrical energy
Mass transfer
Mathematical models
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Summary:A model is developed that enables the determination of steady-state values of all system variables of the boiling water reactor simulator loop DESIRE. The model calculates natural-circulation mass flow rate, subcooling, carry-under, and feedwater flow rate from the three independent variables: power, feedwater temperature, and the setting of a controllable friction valve. The void fraction in the assembly is calculated using the drift-flux model with Dix's correlation. A submodel for the calculation of carry-under is derived on the basis of measurements. Comparison of the model with measurements shows an excellent agreement over a wide range of operating conditions.
ISSN:0029-5450
1943-7471
DOI:10.13182/NT99-A2982