Thermal-hydraulic assessment of topaz irradiation processes at the ETRR-2 research reactor
Abstract
The present work is carried out in order to evaluate the cooling process of irradiated topaz at the Egyptian Second Research Reactor (ETRR-2). A mathematical model is developed to simulate the cooling process of a part of the irradiation grid containing one topaz irradiation box. The coolant flow rate distribution through the model channels is estimated taken into consideration the buoyancy effect in each channel. The coolant temperature distributions along the model channels are predicted as well. The COSMOS/M finite element code is used to estimate the temperature distribution through one irradiated topaz stone. The predicted coolant and surface temperature values show the efficient cooling of topaz stones irradiated at the ETRR-2 research reactor.
Kurzfassung
Ziel der vorliegenden Arbeit ist die Untersuchung der Kühlungsprozesse der am ägyptischen Forschungsreaktor ETRR-2 bestrahlten Topase. Es wurde ein mathematisches Modell entwickelt zur Simulation der Kühlungsprozesse für die Bereiche des Bestrahlungsgitters mit einem Topas-Bestrahlungsbehälter. Die Verteilung des Durchsatzes in den modellierten Kanälen wird unter Berücksichtigung des Auftriebeffekts in jedem Kanal ermittelt. Mit dem FEM-Code COSMOS/M wird die Temperaturverteilung in einem bestrahlten Topas bestimmt. Die berechneten Temperaturwerte des Kühlmittels und der Oberfläche zeigen die Wirksamkeit der Kühlung der im ETRR-2-Forschungsreaktor bestrahlten Topase.
References
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© 2005, Carl Hanser Verlag, München
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Articles in the same Issue
- Contents/Inhalt
- Contents
- Summaries/Kurzfassungen
- Summaries/Kurzfassungen
- Technical Contributions/Fachbeiträge
- Integrated management systems in the nuclear field
- Phenomenological model for non-equilibrium deuteron emission in nucleon induced reactions
- Best estimate analysis of group distribution header blockage events in RBMK-1500 reactors
- Simulation of the hydrogen distribution in the confinement of the Ignalina nuclear power plant
- Neutronic calculations for the new fuel configuration of the ETRR-1 research reactor
- Design stability and safety margins of the ETRR-2 core cooling system regarding seismic loads
- Thermal-hydraulic assessment of topaz irradiation processes at the ETRR-2 research reactor
- The HN method for slab albedo problem for linearly anisotropic scattering
- On the plane-wave theory in fertile uranium
- Safety and security of radioactive sources – international provisions
- The singular eigenfunction method: the critical slab problem for linearly anisotropic scattering
- Technical Notes/Technische Mitteilungen
- Results of in vitro intercomparison tests of the Coordinating Office on Incorporation Monitoring in Germany