Analysis of Resistance Characteristics of a 37 Rod Fuel Bundle under Low Reynolds Number
Open Access
- 2 December 2020
- journal article
- research article
- Published by Hindawi Limited in Journal of Energy
- Vol. 2020, 1-8
- https://doi.org/10.1155/2020/8861190
Abstract
During the working period of decay heat removal system, the flow rate of liquid sodium in wire-wrapped fuel assembly is very low, generally Re < 1000 . In the present study, both experimental methods and numerical simulation methods are applied. First, water experiment of 37-pin wire-wrapped rod bundle was carried out. Then, the numerical simulation study was carried out, the experimental data and the numerical simulation results were compared and analyzed, and a suitable turbulence model was selected to simulate the liquid sodium medium. Finally, numerical simulations under different boundary conditions were performed. Results indicate that except for the low Reynolds number k - ε turbulence model, other turbulence models have little difference with the experimental results. The results of realizable k - ε turbulence model are the most close to the experimental results. Compared with the friction factor obtained by using water medium and liquid sodium medium, the calculation results of water medium and sodium medium under the same condition are basically consistent, with the deviation within 1%. The reason is that the velocity of water is higher than sodium medium at the same Reynolds number, and the transverse disturbance caused by helical wire is larger.This publication has 15 references indexed in Scilit:
- Numerical investigation of thermal pulsating alumina/water nanofluid flow over three different cross-sectional channelInternational Journal of Numerical Methods for Heat & Fluid Flow, 2019
- Thermal and hydraulic analysis of a rectangular microchannel with gallium-copper oxide nano-suspensionJournal of Molecular Liquids, 2018
- Demonstration of plausible application of gallium nano-suspension in microchannel solar thermal receiver: Experimental assessment of thermo-hydraulic performance of microchannelInternational Communications in Heat and Mass Transfer, 2018
- Experimental study of the flow characteristics in an SFR type 61-pin rod bundle using iso-kinetic sampling methodAnnals of Nuclear Energy, 2017
- Flow Distribution and Pressure Loss in Subchannels of a Wire-Wrapped 37-pin Rod Bundle for a Sodium-Cooled Fast ReactorNuclear Engineering and Technology, 2016
- A Hybrid Finite-Element/Finite-Difference Scheme for Solving the 3-D Energy Equation in Transient Nonisothermal Fluid Flow over a Staggered Tube BankNumerical Heat Transfer, Part B: Fundamentals, 2015
- CFD investigation of effect of helical wire-wrap parameters on the thermal hydraulic performance of 217 fuel pin bundleAnnals of Nuclear Energy, 2015
- Review and proposal for best fit of wire-wrapped fuel bundle friction factor and pressure drop predictions using various existing correlationsNuclear Engineering and Design, 2008
- An experimental study and assessment of existing friction factor correlations for wire-wrapped fuel assembliesAnnals of Nuclear Energy, 2001
- An experimental study of inter-subassembly heat transfer during natural circulation decay heat removal in fast breeder reactorsNuclear Engineering and Design, 1998