American Nuclear Society

Home / Store / Journals / Electronic Articles / Nuclear Technology / Volume 153 / Number 2

The Temperature Feature on the Step-Up Process of the Hydraulic Control Rod Driving System

Yanhua Zheng, Hanliang Bo, Duo Dong

Nuclear Technology

Volume 153 / Number 2 / February 2006 / Pages 234-239


Member Price:$27.00
Member Savings:$3.00

As a new type of control rod driving system, the hydraulic control rod driving system (HCRDS) has long been applied in a 5-MW nuclear heating reactor, and the safety and the reliability of the system have been proven. The principle of the work and the step-up operation of the HCRDS have been introduced in this paper. Based on the theoretical model, the temperature influence on the static holding-flow rate, the dynamic holding-flow rate, and the working holding-flow rate has been studied. It indicates that with the increase of the temperature, the static and dynamic holding-flow rates will increase while the working holding-flow rate will decrease.

A detailed analysis of the step-up process on various temperature conditions has been carried out. Considering the great temperature influence on the step-up operation of the system, the method of temperature compensation to select suitable delay time and working holding-flow rate in a certain temperature province is put forward to offset the influence. The analysis can be conducive to widespread availability of the HCRDS and establish a basis for further research and improvement.

Questions or comments about the site? Contact the ANS Webmaster.