imagination_APR1400
imagination_APR1400
imagination_APR1400
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14 Beyond your <strong>imagination</strong>_ <strong>APR1400</strong> CHAPTER_2 DESIGN<br />
Primary System<br />
1. Reactor Coolant System<br />
Reactor Coolant System<br />
The <strong>APR1400</strong> is a two-loop Pressurized Water Reactor (PWR) developed according to the evolutionary<br />
approach that relies on the proven design concepts and components of the OPR1000. The major<br />
component dimensions of Reactor Coolant System (RCS) are increased to deal with the upgraded core<br />
power of 3,983 MWth under the same RCS geometrical configuration as that of OPR1000.<br />
RCS of <strong>APR1400</strong> consists of two hot legs, four cold legs, two Steam Generators (SGs), four Reactor<br />
Coolant Pumps (RCPs), and one Pressurizer connected to a hot leg. The major components are designed to<br />
have a lifetime of 60 years and the seismic design basis of 0.3 g SSE is applied to strengthen the resistance<br />
to earthquake.<br />
Advanced design features and design improvements are incorporated in the <strong>APR1400</strong> design to enhance<br />
the plant safety and the economical efficiency as well as to extend the plant lifetime and to protect the<br />
utilities’ asset.<br />
These advanced design features are derived from Korean Next Generation Reactor (KNGR) development<br />
program launched in 1992. These features also reflect the operation and maintenance experiences gained<br />
from the conventional nuclear power plants.
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