Safety Assessment Of Small And Medium Size Gas Cooled Reactor

SAFETY ASSESSMENT Of SMALL AND MEDIUM SIZE GAS COOLED REACTOR

Suharno
Pusat Teknologi Reaktor dan Keselamatan Nuklir - BATAN
PTRKN-BATAN, Kawasan PUSPIPTEK Gd. 80, Serpong, Tangerang, 15310
ABSTRACT
SAFETY ASSESSMENT Of SMALL AND MEDIUM SIZE GAS COOLED REACTOR. Water cooled reactor which in operation currently has large rating power of 600 MWe to 1400 MWe. The large rating power reactor is not suitable for supplying small load needs or variation load needs. Therefore it is only suitable for supporting based load. For supporting small load, it can be supplied by gas cooled reactor that designed in modular system with small to medium size reactor under 600 MWe. The status of gas cooled reactor is still in design development, therefore it must be proved that the safety level is higher than safety level of water cooled reactor. That case to be the aim of this assessment to formulate qualitatively the safety of gas cooled reactor is higher. The methode used in this assessment is by reviewing and comparing qualitatively the characteristic and the features of gas cooled reactor to light water cooled reactor PWR-Mitsubishi type. From the point of comparison it shall be concluded the level of safety of gas cooled reactor. The characteristic and the features of gas cooled reactor which contribute to the high safety level that are the reduce probability and severity of core damage and radioactive release are deeply assessed and compared to the characteristic and feature of that light water cooled reactor. The result which is also as conclusion shows that qualitatively the safety level of gas cooled reactor is higher than safety level of light water cooled reactor PWR-Mitsubishi type.

Key words : gas cooled reactor, water cooled reactor, safety feature, safety level.
Published : Proceeding "SEMINAR NASIONAL PENGEMBANGAN ENERGI NUKLIR II 2009", Jakarta, 25 Juni 2009