About the change in boiling behaviour of water with coolant additives in PWR
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R. Nakath
Abstract
The present study investigates the effect of boric acid and lithium hydroxide on flow boiling phenomena in pressurized water reactors. The experiments were conducted in a boiling loop with up to 40 bar and 250 °C. The bubble size distribution was determined with a wire-mesh sensor. The results showed no indication that reactor-typical concentrations of boric acid or lithium hydroxide have a safety-relevant influence on the boiling behavior in pressurized water reactors.
Kurzfassung
Die vorliegende Studie untersucht den Einfluss von Borsäure und Lithium-Hydroxid auf Siedevorgänge in Druckwasserreaktoren. Die Experimente wurden in einer Siedeschleife mit bis zu 40 bar und 250 °C durchgeführt, dabei wurde die Blasengrößenverteilung mit einem Gittersensor aufgenommen. Die gesammelten Ergebnisse zeigen kein Indiz dafür, dass Borsäure oder Lithium-Hydroxid einen sicherheitsrelevanten Einfluss auf das Siedeverhalten in Druckwasserreaktoren hat.
References
1 Lee, J.; Jeong, Y. H.; Chang, S. H.: CHF enhancement in flow boiling system with TSP and boric acid solutions under atmospheric pressure. Nuclear Engineering and Design240 (2010) 3594–3600Search in Google Scholar
2 Arias, F. J.: Boron dilution effect on boiling heat transfer with special reference to nuclear reactors technology. Annals of Nuclear Energy36 (2009) 1382–1385Search in Google Scholar
3 Fainermann, V. B.; Möbius, D.; Miller, R.: Surfactant: Chemistry, Interfacial Properties, Applications. Elsevier Science BV, Amsterdam, 2001Search in Google Scholar
4 Lange, L. R.: Surfactants: A Practical Handbook. Hanser Publishers, Munich, 1999Search in Google Scholar
© 2013, Carl Hanser Verlag, München
Articles in the same Issue
- Contents/Inhalt
- Contents
- Summaries/Kurzfassungen
- Summaries
- Editorial
- Actual status of the research alliances “Condensation Induced Water Hammer” and “Boiling processes in Pressurized Water Reactors”
- Technical Contributions/Fachbeiträge
- High-resolution two-phase flow measurement techniques for the generation of experimental data for CFD code qualification
- Condensation induced water hammer (CIWH) – relevance in the nuclear industry and state of science and technology
- Experiments of condensation-induced water hammers at the UniBw Munich
- Development of a 1 D hybrid HTC model using CFD simulations for the analysis of direct contact condensation as the driving force for water hammers
- 1D Models for Condensation Induced Water Hammer in Pipelines
- Modelling, simulation and experiments on boiling processes in pressurized water reactors
- CFD analysis of a void distribution benchmark in a rod bundle
- CFD-modelling of subcooled boiling
- On the pair correlation function in a bubble swarm
- Large Eddy Simulation of the shear flow instability in a rod-bundle assembly
- Small scale boiling experiments using two-dimensional imaging with high-speed camera and optical coherence tomography
- Validation of mechanistic CHF models using optical measuring techniques
- Experimental investigations of single and two-phase flow in a heated rod bundle
- CFD-Modeling of turbulent flows in rod bundle and comparison to experiments
- About the change in boiling behaviour of water with coolant additives in PWR
- Simulation of external reactor vessel cooling in a lumped-parameter code
Articles in the same Issue
- Contents/Inhalt
- Contents
- Summaries/Kurzfassungen
- Summaries
- Editorial
- Actual status of the research alliances “Condensation Induced Water Hammer” and “Boiling processes in Pressurized Water Reactors”
- Technical Contributions/Fachbeiträge
- High-resolution two-phase flow measurement techniques for the generation of experimental data for CFD code qualification
- Condensation induced water hammer (CIWH) – relevance in the nuclear industry and state of science and technology
- Experiments of condensation-induced water hammers at the UniBw Munich
- Development of a 1 D hybrid HTC model using CFD simulations for the analysis of direct contact condensation as the driving force for water hammers
- 1D Models for Condensation Induced Water Hammer in Pipelines
- Modelling, simulation and experiments on boiling processes in pressurized water reactors
- CFD analysis of a void distribution benchmark in a rod bundle
- CFD-modelling of subcooled boiling
- On the pair correlation function in a bubble swarm
- Large Eddy Simulation of the shear flow instability in a rod-bundle assembly
- Small scale boiling experiments using two-dimensional imaging with high-speed camera and optical coherence tomography
- Validation of mechanistic CHF models using optical measuring techniques
- Experimental investigations of single and two-phase flow in a heated rod bundle
- CFD-Modeling of turbulent flows in rod bundle and comparison to experiments
- About the change in boiling behaviour of water with coolant additives in PWR
- Simulation of external reactor vessel cooling in a lumped-parameter code
