期刊论文

Zhao, P.

中文

核技术

0253-3219

2023

46

1

93-102

10.11889/j.0253-3219.2023.hjs.46.010602

国家自然科学基金(No.1 1905101 )资助 第一作者：向钊才，男，2002年出生，现为在读本科生，研究领域为先进核能系统热工水力设计与安全分析 通信作者：赵鹏程，E-mail：zhaopengcheng1030@163.com 收稿日期：2022-08-16，修回日期：2022-10-07 Supported by National Natural Science Foundation of China (No.11905101 ) First author:XIANG Zhaocai,male,born in 2002,undergraduate student,focusing on thermal-hydraulic design and safety analysis of advanced nuclear system Corresponding author:ZHAO Pengcheng,E-mail:zhaopengcheng1030@163.com Received date: 2022-08-16, revised date: 2022-10-07

本校为第一机构

针对环形燃料元件,基于欧洲铅冷系统反应堆ELSY选取环形燃料元件参数,建立环形燃料元件导热模型,设定环形燃料元件的初始参数并利用MATLAB编制环形燃料元件导热计算程序,通过制定的三个评估标准研究环形燃料流量分配比、内外包壳厚度、内外气隙厚度和芯块厚度对环形燃料元件热工性能的影响并进行几何尺寸修正。研究结果表明:适当增大流量分配比、减小内包壳厚度、增大外包壳厚度、减小内外气隙间距和减小芯块厚度可改善元件的热工性能;设定流量分配比为1、内包壳厚度0.06 cm修正为0.04 cm、外包壳厚度0.06 cm修正为0.07 cm、内外气隙间距0.035 cm修正为0.015 cm、芯块厚度修正为0.05 cm,进行这些...

[Background] Compared with conventional rod-type nuclear fuel, annular fuel has higher power density and better heat transfer efficiency, which can significantly improve the safety and economy of the reactor. [Purpose] This study aims to investigate the effect of ring fuel element geometry on the thermal performance and to correct the initial parameters. [Methods] The initial parameters of the ring fuel element were set and the thermal conductivity calculation program of the ring fuel element was prepared. The effects of the ring fuel flow dist...