CONCEPT AND DESIGN OF A SUPERCRITICAL-PRESSURE, DIRECT-CYCLE LIGHT-WATER REACTOR

被引：53
|
作者：
OKA, Y
KOSHIZUKA, SI
机构：
[1] Univ of Tokyo, ibaraki
来源：
NUCLEAR TECHNOLOGY | 1993年 / 103卷 / 03期
关键词：
SUPERCRITICAL-WATER COOLING; DIRECT-CYCLE LIGHT WATER REACTOR; CONCEPTUAL DESIGN;
D O I：
10.13182/NT93-A34852
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：
The concept of a supercritical-pressure, direct-cycle light water reactor is presented. Its feasibility is assessed by a study of its neutronic and thermal-hydraulic design. The system pressure is 250 bars. The coolant density decreases continuously in the core, and the coolant is fed directly to the turbines. This eliminates the recirculation system, steam separators, and dryers. The diameter of the reactor pressure vessel is smaller than that of a pressurized water reactor (PWR), and the vessel wall is not very thick despite the high pressure. The required core flow rate is about one-eighth that of a PWR. There are only two coolant loops in a 1145-MW(electric) reactor, and the turbines are smaller than those of a light water reactor. These features greatly simplify the reactor plant. The thermal efficiency is improved 19% over that of a PWR.
引用
收藏
页码：295 / 302
页数：8
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