Prediction of the onset of flow instability in the ETRR-2 research reactor under loss of flow accident

Kerntechnik ◽  
2007 ◽  
Vol 72 (1-2) ◽  
pp. 53-58 ◽  
Author(s):  
H. A. Khater ◽  
S. El-Din El-Morshdy ◽  
M. M. A. Ibrahim
Keyword(s):  
Research Reactor ◽  
Flow Instability

Steady-State Safety Analysis of Ghana Research Reactor-1 With Low-Enriched-Uranium Core

2020 ◽  
Vol 12 (5) ◽  
Author(s):  
Edward Shitsi ◽  
Prince Amoah ◽  
Emmanuel Ampomah-Amoako ◽  
Henry Cecil Odoi
Keyword(s):  
Steady State ◽  
Research Reactor ◽  
Flow Instability ◽  
Argonne National Laboratory ◽  
Safety Analysis ◽  
Nucleate Boiling ◽  
Pressurized Water ◽  
Safety Margins ◽  
Water Reactors ◽  
Enriched Uranium

Abstract Research reactors all over the world are expected to operate within certain safety margins just like pressurized water reactors and boiling water reactors. These safety margins mainly include onset of nucleate boiling ratio (ONBR), departure from nucleate boiling ratio (DNBR), and flow instability ratio (FIR) in addition to the maximum clad or fuel temperature and saturation temperature or boing point of the coolant inside the core of the reactor. This study carried out steady-state safety analysis of the Ghana Research Reactor-1 (GHARR-1) with low enriched uranium (LEU) core. Monte Carlo N-particle (MCNP) code was used to obtain radial and axial power peaking factors used as inputs in the preparation of the input file of plate temperature code of Argonne National Laboratory (PLTEMP/ANL code), which was then used to obtain the mentioned safety parameters of GHARR-1 with LEU core in this study. The data obtained on the ONBR were used to obtain the initiation of nucleate boiling boundary data with respect to the active length of the reactor core for various reactor powers. The obtained results for LEU core were also compared with that of the high enriched uranium (HEU) core. The results obtained show that the 34 kW GHARR-1 with LEU core is safe to operate just as the previous 30 kW HEU core was safe to operate.

Simplified numerical model for defining Ledinegg flow instability margins in MTR research reactor

2009 ◽  
Vol 51 (3) ◽  
pp. 485-495 ◽  
Author(s):  
Tewfik Hamidouche ◽  
Nouara Rassoul ◽  
El-Khider Si-Ahmed ◽  
Hakim El Hadjen ◽  
Anis Bousbia-salah
Keyword(s):  
Numerical Model ◽  
Research Reactor ◽  
Flow Instability

Europe pauses funding for €500 million fusion research reactor

Nature ◽  
2017 ◽  
Author(s):  
Edwin Cartlidge
Keyword(s):  
Research Reactor ◽  
Fusion Research

Inspection of domestic nuclear fuel rods using neutron radiography at the Tehran Research Reactor

2016 ◽  
Vol 58 (9) ◽  
pp. 763-766 ◽  
Author(s):  
Mohammad Hosein Choopan Dastjerdi ◽  
Hossein Khalafi ◽  
Yaser Kasesaz ◽  
Amir Movafeghi
Keyword(s):  
Nuclear Fuel ◽  
Research Reactor ◽  
Neutron Radiography ◽  
Fuel Rods ◽  
Tehran Research Reactor ◽  
Nuclear Fuel Rods

Research reactor model for isotope production based on the design of VVER-440 reactors

Kerntechnik ◽  
2020 ◽  
Vol 85 (2) ◽  
pp. 105-108
Author(s):  
A. Terekhova ◽  
A. Mahdi ◽  
R. Zykova
Keyword(s):  
Research Reactor ◽  
Isotope Production ◽  
Reactor Model
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