Abstract
Based on the requirement of Hexagonal Casing Type Fuel Reactor (HCTFR) nuclear design and the critical physical experiment design method introduced by a single factor, 11 core critical physical experiments are proposed to validate the calculation accuracy and reliability of the nuclear design code CPLEV2. The experiment loading scheme fully takes into account the various components and more than one irradiate hole in the HCTFR core, which is used as critical physical experiment schemes successfully. According to the critical physical experiment data, the reactivity calculation deviations of all critical physical experiments are within ±1.0%. The validation results show that the nuclear design code CPLEV2 has high calculation accuracy and reliability for the core of hexagonal casing type fuel, and it can be used for HCTFR nuclear design.
Highlights
The nuclear design of Hexagonal Casing Type Fuel Reactor (HCTFR) adopted nuclear design program CPLEV2, which is a specific nuclear design code of the test reactor
All critical physical experiment schemes were generally divided into two categories
The calculation deviations of Schemes 2∼4 are all within 0.8%, and they are all negative deviations, which indicates that the nuclear design code has higher accuracy in calculating the cores containing beryllium assemblies
Summary
The nuclear design of Hexagonal Casing Type Fuel Reactor (HCTFR) adopted nuclear design program CPLEV2, which is a specific nuclear design code of the test reactor. As the hexagonal casing fuel core, irradiate hole scheme, fuel assembly, and control rod assembly of HCTFR are different from those of the existing reactor (Xu et al, 1990; Liu et al, 2000; Tang et al, 2011), it is necessary to carry out the critical physical experiment to test the calculation accuracy and reliability of nuclear design code CPLEV2 which has been applied to the design of HCTFR (Xie, 1994). According to the content of the critical physical experiment, in this paper 11 core critical physical experiment schemes and 2 supplemental schemes are proposed to validate the calculation accuracy and reliability of the nuclear design program CPLEV2. The validation results show that CPLEV2 has high calculation accuracy and reliability for the core of HCTFR, and it can be used for the nuclear design of HCTFR
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