Published May 2010 | Version v1
Miscellaneous Metadata-only

Preliminary Analysis for the SMART LTOP(Low Temperature Over-Pressure Protection)

Creators

  • 1. en2t, Daejeon (Korea, Republic of)
  • 2. Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)

Description

The pressure boundary of the RCS(Reactor Coolant System) during normal operation is protected by pressurizer safety valves. But reduction of toughness of reactor vessel at low temperature could lead to brittle fracture, that is, pressure boundary of the RCS is much vulnerable to pressure at low temperature than at high temperature. Therefore RCS pressure should be limited at low temperature as specified in the 10 CFR 50 APP. G and ASME code section III APP. G. LTOP system is used for overpressure protection at low temperature and the design requirements are specified in the NUREG 0800 BTP 5-2. The relief valves in the SCS(Shutdown Cooling System) are used as LTOP for the SMART plant. Analysis of SMART (System-Integrated Modular Advanced ReacTor) LTOP was performed against the event mostly pressurizing the RCS most at low temperature

Part of:
Proceedings of the KNS spring meeting

Additional details

Publishing Information

Publisher
KNS
Imprint Place
Daejeon (Korea, Republic of)
Imprint Title
Proceedings of the KNS autumn meeting
Imprint Pagination
[1 CD-ROM]
Journal Page Range
[2 p.]

Conference

Title
2010 spring meeting of the KNS
Dates
27-28 May 2010
Place
Pyongchang (Korea, Republic of)

INIS

Country of Publication
Korea, Republic of
Country of Input or Organization
Korea, Republic of
INIS RN
41116769
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Conference, Non-conventional Literature
Descriptors DEI
BRITTLENESS; DESIGN; PWR TYPE REACTORS; REACTOR COOLING SYSTEMS; REACTOR VESSELS; RELIEF VALVES
Descriptors DEC
CONTAINERS; CONTROL EQUIPMENT; COOLING SYSTEMS; ENERGY SYSTEMS; ENRICHED URANIUM REACTORS; EQUIPMENT; FLOW REGULATORS; MECHANICAL PROPERTIES; POWER REACTORS; REACTOR COMPONENTS; REACTORS; THERMAL REACTORS; VALVES; WATER COOLED REACTORS; WATER MODERATED REACTORS

Optional Information

Notes
4 refs, 5 figs