کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1740478 1521755 2015 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Advanced passive design of small modular reactor cooled by heavy liquid metal natural circulation
ترجمه فارسی عنوان
طراحی منفعل پیشرفته رآکتور ماژولار کوچک که توسط فلزات سنگین فلز مایع متمرکز شده است
کلمات کلیدی
راکتور کوچک مدولار، راکتور سریع چرخه سوزاندن طولانی، سرب بیسموت ایموتکتیک، گردش طبیعی، ایمنی منفعل
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
چکیده انگلیسی


• Describe comprehensive design details of a LBE-cooled small modular reactor.
• Describe design of core, heat transport, structural, material, seismic systems.
• Conduct steady-state analysis of neutronics and thermal-hydraulic systems.
• Develop fully natural circulation systems for normal and abnormal conditions.
• Achieve long-burning cycle with less than $1 reactivity swing for 20 years or more.

We applied a passive cooling feature to both normal and abnormal operations of a small modular reactor (SMR) without external power sources and reactor coolant pumps. The SMR, named as URANUS, with a thermal power rating of 100 MW is well suited as a distributed power source because it has a refueling interval of 20 years without assembly reconfiguration. This reactor is a pool type fast reactor with an array of heterogeneous hexagonal core using UO2 fuels. Material corrosion is limited by using corrosion-resistant materials and keeping acceptable low outlet temperature in combination with an oxygen control technique. The reactivity swing during the core lifetime is less than $1 without burnable poison rods to minimize excess reactivity. Three-dimensional seismic isolators are deployed underneath the entire reactor building allowing an earthquake of 0.5 g zero period acceleration for the safe shutdown earthquake. The adoption of the complete passive safety systems enhances the safety performance of the reactor, but simultaneously limits volume power density and discharge burn-up. Thus, the future study on this reactor will focus on the power maximization of the reactor while maintaining land transportable sizes and coolant natural circulation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Progress in Nuclear Energy - Volume 83, August 2015, Pages 433–442
نویسندگان
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