Safety evaluation of small-break LOCA with various locations and sizes for SMART adopting fully passive safety system using MARS code

Experimental investigation of effective parameters on geyser periodicity in a vertical heated system

“…The Fukushima nuclear disaster on March 11, 2011 revealed a significant weakness of current nuclear reactor design with an active safety injection system, as the fuel rods were severely damaged in a relatively short period of time, and also emphasized the development and adoption of passive safety systems against prolonged severe accidents when active systems are not accessible [1][2][3]. Passive safety-related system adopted in the advanced pressurized water reactors (PWRs) such as AP1000 and European pressurized water reactor (EPR) is defined as a system which does not need any external input or energy to operate and fully relies upon natural physical laws (e.g.…”

Kajian Performa Passive Residual Heat Removal System (PRHRS) pada System-Integrated Advanced Modular Reactor (SMART)

“…Melalui sirkulasi alam tersebut, panas sisa pada inti reaktor saat kondisi shutdown dapat didistribusikan keluar untuk mencegah overpressure atau bahkan fuel meltdown tanpa menggunakan mesin yang membutuhkan daya eksternal. Analisis stabilitas aliran dan performa sistem pembuang sisa panas pasif telah banyak dilakukan melalui simulasi dengan kode RELAP5/MOD3.2, MARS/SMR (restrukturisasi dari RELAP5/MOD3.2.1.2 dan COBRA-TF), MARS-KS, TASS/SMR, MATRA, dan TASS/SMR-S [5], [7]- [9], [12]- [15]. Kerja sistem pembuang sisa panas pasif yang menerapkan prinsip sirkulasi alami tidak lepas dari pengujian dan validasi berdasarkan karakteristik termohidrolika.…”