Analysis on inadvertent operation of decay heat removal system in NuScale reactor

Analysis of loss of coolant accident without ECCS and DHRS in an integral pressurized water reactor using RELAP/SCDAPSIM

“…It was proven both by the state-ofthe-art simulator for a single NuScale power module and by the test conducted in the Oregon State University test facility. Another analysis of NuScale reactor with RELAP5 [47] concludes that the inadvertent operation of DHRS does not threaten the reactor safety. SBO simulation for the iPWR test facility (SPES3) using TRACE and RELAP5 was published by de Rosa et al [48], proving the capability of the design to cope with this kind of transient.…”