Loss of coolant accident analyses on multi purpose research reactor by RELAP5/MOD3.2 code

In this paper, a loss of coolant accident (LOCA) in multi purpose research reactor (MPRR) is analyzed. The following procedure consists of three major parts. First, a RELAP5 nodalization of the core and the most important components of the primarily cooling system are developed and steady state condition is simulated and compared with result of simulation a same Indian research reactor to verify the nodalization. Then, two large break points are selected for design basis accident analyses. Finally, two main loss of coolant accidents are simulated and developed to analyze LOCA in MPRR. It can be concluded that MPRR is safe against the LOCA.