Transient calculation on TRIGA 2000 of plate-type fuel element using RELAP5, EUREKA2/RR, and MTR-DYN codes

Dibyo, Sukmanto; Pinem, Surian; Widodo, Surip

doi:10.2298/ntrp2103211d

Cited by 1 publication

(1 citation statement)

References 15 publications

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“…The in her ent safety fea ture of the peb ble-bed reac tor de pends on the cal cu lated ki netic pa ram e ters. Ac cu rate cal cu la tion of the re ac tor ki netic is the main con cern for safe op er a tion and tran sient anal y sis [11]. The pur pose of this study is to in ves ti gate the char acter is tics of ki netic pa ram e ters for peb ble bed re ac tors us ing HTR-Pro teus [12].…”

Section: Introductionmentioning

confidence: 99%

Study on kinetic parameters characteristics of pebble bed reactor using HTR-proteus facility

Zuhair¹,

Luthfi²,

Sriyono³

et al. 2022

NUCL TECH RAD PROT

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The inherent safety feature of a pebble-bed reactor can be observed from its kinetic parameters. Proper modeling for calculating the reactor kinetic is also a concern for safe operation during normal and transient conditions. This study is intended to investigate the kinetic parameters characteristics of a pebble bed reactor using HTR-Proteus. A series of calculations were conducted using MCNP6 code and ENDF/B-VII library. The calculation results show that the negative value on core temperature reactivity is affected dominantly by the Doppler broadening effect. Prompt neutron lifetime l and mean generation time ? are slightly changed due to an increase in fuel temperature, moderator, and reflector that changed the neutron moderation and absorption over this part of the reactor. For (Th, U)O2, UO2, and PuO2 cores, the effective delayed neutron fraction ?eff values are more influenced by 233U, 235U, and 239Pu, respectively. In terms of stability during reactivity insertion, the UO 2 core is more stable and easier to control because its ?eff value is the largest compared to (Th,U)O2 and PuO 2 cores. It can be concluded that temperature must be controlled because it does not only affect the reactivity but also kinetic parameters as part of developing inherent safety features on the pebble-bed reactor.

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Section: Introductionmentioning

confidence: 99%