Proposal of solid titanium shim and control rods

Small modular high temperature reactor optimisation part 2: Reactivity control for prismatic core high temperature small modular reactor, including fixed burnable poisons, spectrum hardening and control rods

Progress in Nuclear Energy ◽

10.1016/j.pnucene.2018.11.001 ◽

2019 ◽

Vol 111 ◽

pp. 233-242 ◽

Cited By ~ 2

Author(s):

S. Atkinson ◽

D. Litskevich ◽

B. Merk

Keyword(s):

High Temperature ◽

Small Modular Reactor ◽

High Temperature Reactor ◽

And Control ◽

Control Rods

Iterative algorithm for optimization of the energy distribution in high-powered water-cooled channel reactors (RBMK) with the help of measurement of the insertion depth of the safety and control rods (SCR)

Soviet Atomic Energy ◽

10.1007/bf01146477 ◽

1983 ◽

Vol 54 (6) ◽

pp. 389-393

Author(s):

A. A. Shkurpelov ◽

V. V. Postnikov ◽

N. V. Isaev ◽

V. G. Nazaryan ◽

Yu. V. Shmonin ◽

...

Keyword(s):

Energy Distribution ◽

Iterative Algorithm ◽

Insertion Depth ◽

And Control ◽

Control Rods

The Effect of MA Transmutation in the PWR on Fuel Cycle

Volume 3: Nuclear Fuel and Material, Reactor Physics and Transport Theory; Innovative Nuclear Power Plant Design and New Technology Application ◽

10.1115/icone25-67787 ◽

2017 ◽

Author(s):

Haoyang Yu ◽

Bin Liu ◽

Wenxin Zhang ◽

Jin Cai

Keyword(s):

Fuel Cycle ◽

Minor Actinide ◽

Minor Actinides ◽

Pressurized Water Reactor ◽

Spent Fuel ◽

Pressurized Water ◽

Mcnp Program ◽

And Control ◽

Control Rods ◽

Effective Multiplication

The minor actinides (MA) is important nuclides in the spent fuel which is bad for human ecological environment. Pressurized water reactor (PWR) is the main reactor type at commercial operation around world. It is important to find the appropriate loading patterns when introducing minor actinides to the PWR core. In this paper, we study the effect of MA transmutation in the PWR on fuel cycle. First, we use the MCNP program to simulate the model of PWR and the effective multiplication factor.Then,the MA is introduced into core in different ways and mass to simulate the effective multiplication factor. In conclusion,without considering chemical skim control and control rods, we change the thickness of the MA, until the keff closes to 1, We find that loading minor actinides to burnable poison rods for transmutation is an optimal minor actinide loading pattern.

Transmission computer microtomography for nondestructive monitoring of fuel and control rods in a reactor

Atomic Energy ◽

10.1007/bf02673294 ◽

2000 ◽

Vol 88 (2) ◽

pp. 130-141

Author(s):

V. I. Lelekov

Keyword(s):

Nondestructive Monitoring ◽

And Control ◽

Control Rods

Managing the reactivity excess of the gas turbine-modular helium reactor by burnable poison and control rods

Annals of Nuclear Energy ◽

10.1016/j.anucene.2005.08.005 ◽

2006 ◽

Vol 33 (1) ◽

pp. 84-98 ◽

Cited By ~ 5

Author(s):

Alberto Talamo

Keyword(s):

Gas Turbine ◽

Burnable Poison ◽

And Control ◽

Control Rods

Role of Operational Radioprotection Simulation in the Dismantling of the Protection and Control Rods of VVR-S Reactor

Acta Physica Polonica A ◽

10.12693/aphyspola.131.514 ◽

2017 ◽

Vol 131 (3) ◽

pp. 514-519

Author(s):

I. Iorga ◽

R. Deju ◽

D. Gurau ◽

M. Mincu

Keyword(s):

Protection And Control ◽

And Control ◽

Control Rods

CASTING OF BLANKET BRICKS, RING, PLUG, AND CONTROL RODS FOR THE EXPERIMENTAL BREEDER REACTOR (CP-4)

10.2172/4325815 ◽

1953 ◽

Author(s):

R. Macherey

Keyword(s):

And Control ◽

Control Rods

Prediction of the lifetime of the elements of the safety and control rods of nuclear reactors

Soviet Atomic Energy ◽

10.1007/bf01127409 ◽

1987 ◽

Vol 62 (1) ◽

pp. 20-28

Author(s):

V. V. Voskoboinikov ◽

I. Ya. Emel'yanov ◽

A. F. Lineva ◽

S. N. Pushkin ◽

�. L. Semchenko ◽

...

Keyword(s):

Nuclear Reactors ◽

And Control ◽

Control Rods

Results from the Power Burst Facility Severe Fuel Damage Test 1-4: A Simulated Severe Fuel Damage Accident with Irradiated Fuel Rods and Control Rods

Nuclear Technology ◽

10.13182/nt91-a15812 ◽

1991 ◽

Vol 94 (3) ◽

pp. 313-335 ◽

Cited By ~ 15

Author(s):

David A. Petti ◽

Zoel R. Martinson ◽

Richard R. Hobbins ◽

Daniel J. Osetek

Keyword(s):

Fuel Rods ◽

And Control ◽

Control Rods ◽

Irradiated Fuel

Impact of control rod insertion during burnup on PWR fuel assembly isotopic composition

Kerntechnik ◽

10.1515/kern-2019-0079 ◽

2021 ◽

Vol 86 (2) ◽

pp. 173-181

Author(s):

R. M. Refeat ◽

H. K. Louis

Keyword(s):

Safety Analysis ◽

Second Phase ◽

Spent Fuel ◽

Reactor Operation ◽

Control Rod ◽

Two Phases ◽

And Control ◽

Criticality Analysis ◽

Control Rods ◽

Criticality Safety

Abstract Criticality analysis of spent fuel assumes that the fuel material is unburned which means that it is in its most reactive condition. In fact, this is not the real situation for fuel as it is burned during reactor operation causing reduction in the reactivity. Considering the reduction in reactivity during spent fuel calculations is the Burn-up Credit concept (BUC). In addition, the control rods radial and axial positions have an effect on the reactivity which can be considered in the criticality safety analysis. This paper studies the effect of burnup and control rods (CRs) movement on reactivity and isotopes inventory. Calculations are carried out in two phases, first kinf is calculated for different burnup profiles with control rods are either fully withdrawn or fully inserted. In the second phase keff is calculated for different control rods insertion levels. For both phases, burnup calculations are performed for a UO2 assembly then multiplication factor calculations of burned UO2 assemblies in cold state are done. The burnup calculations are performed using MCNP6 code and ENDF/B-VII library for different burnup levels up to 45 GWd/tU. The results obtained can be taken in consideration in criticality safety analysis performed for the spent fuel to improve the economic efficiency for manufacture, storage and transportation of fissile materials.