STUDY OF SAFETY FOR UNDERGROUND NPP

Abstract

STUDY OF SAFETY FOR UNDERGROUND NPP. Human growth has consequences for land use. The construction of facilities and industries to meet human needs makes the availability of land for natural ecosystems, and agriculture tends to decrease. One land use in the energy sector includes constructing a Nuclear Power Plant (NPP). Therefore, NPP developers have currently developed several designs of nuclear power plants with small sizes, namely Small Modular Reactor (SMR), Micro Modular Reactor (MMR), and underground NPP. In addition to saving space, underground nuclear power plants have several advantages, namely increased security, strengthened containment, and protection from external events. On the other hand, safety issues must still be the main focus of this NPP design. Based on Government Regulation 54 of 2012, safety is a provision that must be met by business entities wanting to carry out construction, operation, and decommissioning. Therefore, this paper is prepared to elaborate on what must be considered for this NPP design. The study was carried out based on the design catalog of the Super-Safe, Small, and Simple Reactor (4S) nuclear power plant developed by Toshiba and combined with other references related to underground building structures. The results of the study found that several things must consider for the design of an underground NPP hydrology, soil properties, the possibility of accidents due to debris, maintenance, and response to nuclear emergencies. Keywords: NPP, Underground NPP, Safety, NPP Design