Method for increasing the burn-up capability of boiling water nuclear reactors containing plutonium-bearing fuel assemblies专利检索-空隙率水处理专利检索查询-专利查询网

Method for increasing the burn-up capability of boiling water nuclear reactors containing plutonium-bearing fuel assemblies

阅读：696发布：2024-01-31

专利汇可以提供Method for increasing the burn-up capability of boiling water nuclear reactors containing plutonium-bearing fuel assemblies专利检索，专利查询，专利分析的服务。并且The burn-up capability of a boiling water nuclear reactor containing plutonium-bearing fuel assemblies is significantly increased by reducing the void fraction in the core toward the end of the cycle. This reduction is advantageously accomplished by increasing the rate at which water is recirculated.，下面是Method for increasing the burn-up capability of boiling water nuclear reactors containing plutonium-bearing fuel assemblies专利的具体信息内容。

权利要求

1. A METHOD FOR UTILIZING PLUTONIUM ENRICHED NUCLEAR FUEL IN A BOILING WATER NUCLEAR REACTOR HAVING A CORE CONSISTING PREDOMINANTLY OF URANIUM ENRICHED FUEL ASSEMBLIES AN ADAPTED TO RECIRCULATE WATER THROUGH SAID CORE AT A PREDETERMINED FLOW RATE COMPRISING THE STEPS OF: DISPOSING IN SAID CORE OR MORE FUEL ASSEMBLIES CONTAINING SUFFICIENT PLUTONIUM ENRICHED FUEL THAT THE AMOUNT OF PLUTONIUM ENRICHMENT DISPOSED IN SAID CORE EXCEEDS BY AT LEAST 20 PER CENT THE AMOUNT OF PLUTONIUM PRODUCED BY THE REACTOR DURING A NORMAL URANIUM OXIDE FUEL CYCLE, BEGINNING A FUEL CYCLE BY INTIATING REACTOR OPERATION, OPERATING SAID REACTOR DURING A FIRST PORTION OF THE FUEL CYCLE WITH THE VOID FRACTION OF SAID BOILING WATER REACTOR MAINTAINED SUBSTANTIALLY AT A PREDETERMINED LEVEL, REDUCING SAID VOID FRACTION BY INCREASING THE RECIRCULATION FLOW RATE BY BETWEEN 10 AND 30 PER CENT, AND OPERATING SAID REACTOR DURING THE END PORTION OF SAID FUEL CYCLE WITH SAID VOID FRACTION SUBSTANTIALLY MAINTAINED BELOW SAID PREDETERMINED LEVEL BY MAINTAINING AN INCREASED RECIRCULATION RATE UNTIL SUBSTANTIALLY THE END OF SAID FUEL CYCLE.

2. The method according to claim 1 wherein said recirculation flow rate is increased by about 20 per cent.

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Method for increasing the burn-up capability of boiling water nuclear reactors containing plutonium-bearing fuel assemblies

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