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SR7 Energia Eólica, Solar e Nuclear |
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Title:
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A NEW ADVANCED SAFE NUCLEAR REACTOR CONCEPT
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Summary :
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ABSTRACT. THE REACTOR DESIGN IS BASED ON FLUIDIZED BED CONCEPT AND UTILIZES PRESSURIZED WATER REACTOR TECHNOLOGY. THE FUEL IS AUTOMATICALLY REMOVED FROM THE REACTOR BY GRAVITY UNDER ANY ACCIDENT CONDITION. THE REACTOR DEMONSTRATES THE CHARACTERISTICS OF INHERENT SAFETY AND PASSIVE COOLING. HERE TWO OPTIONS FOR MODIFICATION TO THE ORIGINAL DESIGN ARE PROPOSED IN ORDER TO INCREASE THE STABILITY AND THERMAL EFFICIENCY OF THE REACTOR. A MODIFIED VERSION OF THE REACTOR INVOLVES THE CHOICE OF SUPERCRITICAL STEAM AS THE COOLANT TO PRODUCE A PLANT THERMAL EFFICIENCY OF ABOUT 40%. ANOTHER IS TO MODIFY THE SHAPE OF THE REACTOR CORE TO PRODUCE A NON-FLUCTUATING BED AND CONSEQUENTLY GUARANTEE THE DYNAMIC STABILITY OF THE REACOR. THE MIXING OF TANTALUM IN THE FUEL IS ALSO PROPOSED AS AN ADDITIONAL INHIBITION TO POWER EXCURSION. THE SPENT FUEL PELLETS MAY NOT BE CONSIDERED NUCLEAR WASTE SINCE THEY ARE IN THE SHAPE AND SIZE THAT CAN EASILY BE USED AS A A RADIOACTIVE SOURCE FOR FOOD IRRADIATION AND INDUSTRIAL APPLICATIONS. THE REACTOR CAN EASILY OPERATE WITH ANY DESIRED SPECTRUM BY VARYING THE POROSITY IN ORDER TO BE A PLUTONIUM BURNER OR UTILIZE A THORIUM FUEL CYCLE.
KEYWORDS: NUCLEAR REACTOR, FLUIDIZED BED, INHERENT SAFETY, SMALL REACTOR, MODULAR REACTOR.
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Author :
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Sefidvash, Farhang 0
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Paper View :
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