The effect of retarding torque during a flow transient for Tehran Research Reactor

被引：3
作者：
Farhadi, Kazem [1 ]
机构：
[1] AEOI, Nucl Sci & Technol Res Inst, Nucl Sci Res Sch, Engn Sci Res Grp, Tehran, Iran
来源：
ANNALS OF NUCLEAR ENERGY | 2011年 / 38卷 / 2-3期
关键词：
Pool-type research reactor; Flow transients; Electrical loss; Mechanical loss; Retarding torque; COASTDOWN;
D O I：
10.1016/j.anucene.2010.11.013
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 primary cooling system of the Tehran Research Reactor (TRR) has been analysed for a possible flow transient phenomenon caused by power cut-off. All the components of the TRR primary cooling loop that offer resistance to the coolant flow are physically modelled. Differential equations of motion for the coolant in the primary piping of the TRR and for the rotating parts of the centrifugal pump are then derived. The equation of flow motion is solved simultaneously with momentum conservation equation of the rotating parts of the pump which predicts the TRR pump speed during the flow transient. Electrical and mechanical losses are measured for the TRR three-phase induction motor in order to calculate the motor retarding torque during the event. The results of the present study are compared with the other similar primary loop results. The present model shows good agreement with the existing experimental and theoretical studies. (C) 2010 Elsevier Ltd. All rights reserved.
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收藏
页码：175 / 184
页数：10
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