Research on the fuel loading patterns of the initial core in Chinese pebble-bed reactor HTR-PM

被引：8

作者：

Zhang, Jingyu ^{[1
]}

Guo, Jiong ^{[2
,3
]}

Li, Fu ^{[3
]}

Sun, Yuliang ^{[3
]}

机构：

[1] North China Elect Power Univ, Sch Nucl Sci & Engn, Beijing 102206, Peoples R China

[2] Minist Educ, Key Lab Adv Reactor Engn & Safety, Beijing 100084, Peoples R China

[3] Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China

来源：

ANNALS OF NUCLEAR ENERGY | 2018年 / 118卷

基金：

中国国家自然科学基金;

关键词：

Fuel loading patterns; The initial core; Pebble-bed reactor; HTR-PM; DESIGN-FEATURES; PLANT;

D O I：

10.1016/j.anucene.2018.04.019

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Modular high-temperature gas-cooled reactor (HTGR) is a kind of safe and advanced nuclear energy system, which can provide electric power and high-temperature process-heat efficiently. At present, a 200 MWe demonstration plant, named high-temperature gas-cooled reactor - pebble-bed module (HTR-PM), is being built in China and is planned to be critical in one or two years. In this paper, the physical consideration on the fuel loading patterns of the initial core of HTR-PM is given, and the initial core of HTR-PM is proposed to be made up of low-enrichment fuel spheres and graphite spheres. Then several representative schemes are simulated using VSOP code. The relationship between the key physical parameters (fuel enrichment, flux distribution, temperature coefficient, power per fuel sphere, charging rate) and the volume fraction of fuel spheres in the initial core is analyzed. As a result, the feasible region of the volume fraction of fuel spheres in the initial core is determined as [5/15, 11/15]. The work of this paper can provide support for the fuel management of HTR-PM in the future. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：235 / 240

页数：6