Abstract

For the supercritical water-cooled reactor components, using different Pu content MOX fuel assembly calculations, the different depth of fuel burnup conditions, power distribution factor, moderator temperature reactivity coefficient results, and comparative analysis of the supercritical water application heap and application of UO2 fuel MOX fuel assembly performance of, and between different Pu content MOX fuel performance difference. The results show that supercritical water cooled reactor designs, the application of MOX fuel and UO2 fuel application of a similar power distribution, the application of MOX fuel can increase the depth of burn, and have a good moderator temperature reactivity coefficient. Through rational design of MOX fuel can be better used in supercritical water-cooled heap, and result in better performance. Making use of MOX fuel which is made up of different compositions, a calculation was made for supercritical water cooled reactor . Taking account of fuel burnup, power distribution factor, temperature reactivity coefficient, a analysis was made for using UO2 fuel and MOX fuel in SCWR and using different MOX fuels in SCWR. The results indicate that MOX fuel has a simple power distribution with UO2 fuel, and has better fuel burnup, reactivity coefficient than UO2 fuel in SCWR. MOX fuel may apply in SCWR with reasonable design, and has a better property