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Regional Basic Professional Training Course in Korea

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<strong>Regional</strong> <strong>Basic</strong> <strong>Professional</strong> <strong>Tra<strong>in</strong><strong>in</strong>g</strong> <strong>Course</strong> (BPTC) on Nuclear Safety<br />

material. The reactor operation cycle is 28 days. The reactor has <strong>in</strong>herent safety<br />

characteristics such as heat removal by natural circulation and reactor trip by gravity drop<br />

of shut‐off rods.<br />

4.2.6.2.1 Core Characteristics<br />

The core features a comb<strong>in</strong>ation of light‐water cooled/moderated <strong>in</strong>ner core and light‐<br />

watercooled/heavy‐water moderated outer core. The <strong>in</strong>ner core has 28 fuel sites and 3 test<br />

sites. Among them, 20 fuel sites have hexagonal shapes, and 8 fuel sites are for circular<br />

fuel assemblies, which are enclosed by 4 control absorber rod (CAR) shrouds and 4 shut‐<br />

off rod (SOR) shrouds made of natural hafnium. 3 test sites are also <strong>in</strong> hexagonal shapes<br />

and used for capsules. The outer core consists of 4 fuel sites and 4 test sites, which are<br />

embedded <strong>in</strong> the reflector tank<br />

Table 4.2 HANARO Reactors Specifications<br />

Type Open‐tank‐<strong>in</strong>‐pool<br />

Maximum thermal power 30 MW<br />

Coolant Light water<br />

Reflector Heavy water<br />

Fuel material U3Si <strong>in</strong> alum<strong>in</strong>um matrix, 19.75 w/o enriched<br />

Absorber material Hafnium<br />

Secondary cool<strong>in</strong>g Cool<strong>in</strong>g tower<br />

Reactor build<strong>in</strong>g Conf<strong>in</strong>ement<br />

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