Journal of Nuclear Energy Science & Power Generation TechnologyISSN: 2325-9809

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Research Article, J Nucl Ene Sci Power Generat Technol Vol: 3 Issue: 2

Modelling the Velocity Profile of Coolant Flow in the GHARR-1 Fuel Channel

Kyei AY1*, Annafi TA1, Annor-Nyarko M1, Quaye CR2 and Bansah C3
1Radiation Protection Institute, Ghana Atomic Energy Commission, Accra, Ghana
2Ghana Space Science and Technology Institute, Ghana Atomic Energy Commission, Accra, Ghana
3National NuclearResearch Institute, Ghana Atomic Energy Commission, Accra, Ghana
Corresponding author : Afrifa Yamoah Kyei
Radiation Protection Institute, Ghana Atomic Energy Commission, P. O. Box LG 80 Legon, Accra, Ghana
Tel: +233246769162;
E-mail: [email protected]
Received: April 22, 2013 Accepted: June 21, 2014 Published: June 25, 2014
Citation: Kyei AY, Annafi TA, Annor-Nyarko M, Quaye CR, Bansah C (2014) Modelling the Velocity Profile of Coolant Flow in the GHARR-1 Fuel Channel. J Nucl Ene Sci Power Generat Technol 3:123. doi:10.4172/2325-9809.1000123

Abstract

Modelling the Velocity Profile of Coolant Flow in the GHARR-1 Fuel Channel

The velocity profile of coolant flow in the Ghana Research Reactor-1 (GHARR-1) fuel channel has been determined using a mathematical model based on Navier-Stokes equation. A finite difference scheme for the discretization by Marker and Cell (MAC) method was used in the model. Solution algorithms were developed and MATLAB program implemented to simulate the velocity distribution of coolant flow at a 30 kW nominal power. The fluid dynamics module of the Navier- Stokes equation in COMSOL Multiphysics v 3.4 was used to verify and validate the results obtained. The results showed a velocity distributions range of 0.9 m/s to 1.9 m/s. Reynolds number values ranging from 460 to 970 were also obtained indicating a laminar flow of coolant.

Keywords: Fuel channel; Velocity distribution; Navier-Stokes equation; Coolant; Marker and cell (MAC) method

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