Design concept for a small pebble bed reactor with ROX fuel

Ho, Hai Quan; Obara, Toru

doi:10.1016/j.anucene.2015.10.007

Cited by 7 publications

(1 citation statement)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These ad van tages en sure that core melt down is im pos si ble, and the core re mains in tact in any ac ci dent sce nario that causes the re ac tor tem per a ture in creases up to 1600 °C [3]. The peb ble bed re ac tor pos sesses the flex i bil ity to uti lize var i ous fuel cy cles, in clud ing tho rium [4][5][6], plu to nium [7][8][9], and rock-like ox ide [10].…”

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

View full text Add to dashboard Cite

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.

show abstract

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

View full text Add to dashboard Cite

show abstract

A review of pebble flow study for pebble bed high temperature gas-cooled reactor

Jiang

Yang

et al. 2019

Exp. Comput. Multiph. Flow

View full text Add to dashboard Cite

The pebble bed high temperature gas-cooled reactor is a promising generation-IV reactor, which uses large fuel pebbles and helium gas as coolant. The pebble bed flow is a fundamental issue for both academic investigation and engineering application, e.g., reactor core design and safety analysis. This work performed a review of recent progress on pebble flow study, focusing on the important issues like pebble flow, gas phase hydrodynamics, and inter-phase heat transfer (thermal hydraulics). Our group's researches on pebble flow have also been reviewed through the aspects of phenomenological observation and measurement, voidage distribution, geometric and parameter optimization, pebble flow mechanisms, flow regime categorization, and fundamentals of modelings of pebble flow and radiation. Finally, the major problems or possible directions of research are concluded which would be some of our focuses on the pebble bed flow study.

show abstract

A morphological image processing method for simultaneous scrutinization of particle position and velocity in pebble flow

Wang

Gui

Liu

et al. 2020

Annals of Nuclear Energy

View full text Add to dashboard Cite

Design concept for a small pebble bed reactor with ROX fuel

Cited by 7 publications

References 11 publications

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

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

A review of pebble flow study for pebble bed high temperature gas-cooled reactor

A morphological image processing method for simultaneous scrutinization of particle position and velocity in pebble flow

Contact Info

Product

Resources

About