Thermal–hydraulic modeling of nanofluids as the coolant in VVER-1000 reactor core by the porous media approach

Zarifi, Ehsan; Jahanfarnia, Gholamreza; Veysi, Farzad

doi:10.1016/j.anucene.2012.07.041

Cited by 46 publications

(19 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…o C [3][4][5]. COBRA-EN code is also used on capability enhancement for VVER reactor calculation [2], deterministic optimum loading pattern [6], thermal-hydraulics modeling of nanofluids [7], sub-channel analysis of nano fluid [8] and other research in VVER-1000 reactor [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

A Comparison in Thermal-Hydraulics Analysis of Pwr1000 Using Fixed and Temperature Function of Thermal Conductivity

Isnaini

Mutiara

2016

Jurnal Pengembangan Energi Nuklir

View full text Add to dashboard Cite

A COMPARISON IN THERMAL-HYDRAULICS ANALYSIS OF PWR-1000 USING FIXEDAND TEMPERATURE FUNCTION OF THERMAL CONDUCTIVITY. A study to analyze theinfluence of the fuel-cladding’s thermal conductivity on the sub-channel of pressurized waterreactor 1000 (PWR-1000) using COBRA-EN computer code was conducted. The purpose ofthis research is to gain complete understanding of sub-channel thermal-hydraulic aspectsrelated to fuel performance, especially the appropriate range of thermal conductivity of UO2fuel (kf) and zircaloy-4 cladding (kc) in order to obtain an accurate sub-channel analysisrelated to its safety behavior. The research was conducted by comparing the calculation withthe combination values of the fixed kf and kc, as well as the calculation using kf and kc astemperature function. The fixed kf using in this calculation were 5.26 W/m.K, 3.85 W/m.K,3.60 W/m.K, 3.18 W/m.K, 2.90 W/m.K, 2.53 W/m.K and 2.34 W/m.K, while the kc were13.0 W/m.K, 15.57 W/m.K, 16.75 W/m.K, 17.94 W/m.K and 18.69 W/m.K. The maximumfuel center linet emperature using kf and kca s temperature function (MATPRO) for hot sub -channel was 1717.65°C and taken as the reference in accepting the calculation result usingfixed thermal conductivity. The analysis was accepted, if the deviation between bothtemperature was in the range of -10% to 10%. This analysis results for hot sub-chan nelwas accepted for the calculation using value of kf in the range of 3.18 - 2.90 W/m.K for allall variation value of kcW. hile the calculation using value of koff 2.53 W/m.K was accepet dfor value of kc in the range of 16.76 - 18.69 W/m.K

show abstract

Section: Introductionmentioning

confidence: 99%

A Comparison in Thermal-Hydraulics Analysis of Pwr1000 Using Fixed and Temperature Function of Thermal Conductivity

Isnaini

Mutiara

2016

Jurnal Pengembangan Energi Nuklir

View full text Add to dashboard Cite

show abstract

“…Porous media simulations require only about 1% or less of the runtime of a comparable CFD simulation. Even compared to subchannel codes, porous media codes are still less expensive [4].…”

Section: Physical Modelsmentioning

confidence: 99%

“…But, with the inclusion of anisotropic drag and effective thermal conductivity tensors, Pronghorn may be used for plate and prismatic fuel systems. Porous medial models have been used for non-pebble bed type reactors in many cases [4]. Future work will involve this extension.…”

Section: Physical Modelsmentioning

confidence: 99%

Pronghorn Theory Manual

Novak

Schunert

Carlsen

et al. 2018

View full text Add to dashboard Cite

“…Zarifi et al [1] used Al 2 O 3 /water and TiO 2 /water in different volume fractions of nanoparticles as cooling fluid in VVER-1000 reactor. Their results showed that with increasing the volume fraction of nanoparticles, the temperature of output cooling fluid increases.…”

Section: Literature Reviewmentioning

confidence: 99%

Application of Nano-Fluids to Heat Transfer Enhancement in Double-Walled Reactor

Ghahdarijani¹,

Hormozi²

2016

J Chem Eng Process Technol

View full text Add to dashboard Cite

Efficiently cooling of a reactor for an exothermic reaction can lead the efficiency to be increased, while reduces the size of the rector. In the present research, aqueous Nano-fluid of Al 2 O 3 and CuO are used as heat transfer media flowing inside the reactor jacket to improve the heat transfer performance of a reacting system. Experiments have been performed to investigate the role of Nano-fluid in cooling of an exothermic reaction. The experimental facility provides conditions to control the generated heat during the reaction. Convective heat transfer coefficient and pressure drop of alumina/water and CuO/water Nano-fluids were experimentally measured. Nano-fluids were using two-step method at mass concentrations of 0.1-0.4%. The reactor is a stainless steel-made annular type, which is cooled by Nano-fluid flowing inside the annular section. For longer stability of Nano-fluids, surfactant and sonication were implemented. Results showed that by increasing the concentration of Nano-fluid and Reynolds number, the heat transfer coefficient increased. For CuO Nano-fluid, rate of enhancement for the convective heat transfer coefficient was 13% at 0.3% in comparison with the base fluid. While for aluminum Oxide at wt. %=0.4, the enhancement rate was 11.7%. Utilizing the Nano-fluid instead of traditional coolants, (e.g., water) resulted in a small penalty for the pressure drop. Higher level of pressure drop was registered for alumina Nano-fluid at wt%=0.4, which was 12% more than that of reported for the distilled water?

show abstract

Thermal–hydraulic modeling of nanofluids as the coolant in VVER-1000 reactor core by the porous media approach

Cited by 46 publications

References 15 publications

A Comparison in Thermal-Hydraulics Analysis of Pwr1000 Using Fixed and Temperature Function of Thermal Conductivity

A Comparison in Thermal-Hydraulics Analysis of Pwr1000 Using Fixed and Temperature Function of Thermal Conductivity

Pronghorn Theory Manual

Application of Nano-Fluids to Heat Transfer Enhancement in Double-Walled Reactor

Contact Info

Product

Resources

About