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http://dx.doi.org/10.20466/KPVP.2016.12.1.023

Seismic Qualification Test for SSDM Hydraulic System of Research Reactor  

Kim, Sanghaun (한국원자력연구원)
Kim, Gyeong-Ho (한국원자력연구원)
Sun, Jong-Oh (한국원자력연구원)
Cho, Yeong-Garp (한국원자력연구원)
Jung, Taeck-Hyung ((주)포스코플랜텍)
Kim, Jung-Hyun ((주)포스코플랜텍)
Lee, Kwan-Hee (포항산업과학연구원)
Publication Information
Transactions of the Korean Society of Pressure Vessels and Piping / v.12, no.1, 2016 , pp. 23-29 More about this Journal
Abstract
The Second Shutdown Drive Mechanism (SSDM) provides an alternate and independent means of reactor shutdown. The Second Shutdown Rods (SSRs) of SSDMs are poised at the top of the core by the hydraulic force driven from a hydraulic system during normal operation. The rods drop by gravity when a trip is commended by a Reactor Protection System, Alternate Protection System, Automatic Seismic Trip System or operator by means of power off solenoid valves of hydraulic system. This paper describes the test results of seismic qualification of a prototype SSDM hydraulic system to demonstrate that its structural integrity and operability (functionality) are maintained during and after seismic excitations, that is, an adequacy of the SSDM design. From the results, this paper shows that the SSDM hydraulic system satisfies all its design requirements without any malfunctions during and after seismic excitations.
Keywords
Second Shutdown Drive Mechanism (SSDM); Hydraulic System; Seismic Qualification; Research Reactor;
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  • Reference
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