Conference Proceedings Paper
THERMAL-HYDRAULICS ANALYSIS OF ANNULAR FUEL APPLICATION IN SCWR
The 5th International Symposium on SuperCritical Water-cooled Reactors - 2011 March 13-16
Yuanbing Zhu (Xi'an Jiaotong University)
Jianqiang Shan (Xi'an Jiaotong University)
Bo Zhang (Xi'an Jiaotong University)
The annular fuel is a new fuel type with annular shape which allows both the internal and external cooling abilities. First, two coolant flow schemes, which are named in-out type and out-in type, have been compared with single channel model from both aspects of physics and thermal-hydraulic, and the latter one was finally selected. Then, with the selected flow scheme, subchannel analysis with modified ATHAS code was carried out. The results showed that application of annular fuel in supercritical water reactor can reduce both cladding temperature and fuel pellet temperature effectively.
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