Authors & Affiliations
Samoilov O.B., Kupriyanov A.V., Falkov A.A., Shipov D.L., Molodtsov A.A., Lukyanov V.E.
JSC "Afrikantov OKB Mechanical Engineering", Nizhny Novgorod, Russia
Kupriyanov A.V. – Deputy Head of Department, Can. Sci. (Tech.), JSC "Afrikantov OKB Mechanical Engineering".
Falkov A.A. – Deputy Head of Department, Cand. Sci. (Tech.), JSC "Afrikantov OKB Mechanical Engineering".
Shipov D.L. – Head of Bureau, Cand. Sci. (Tech.), JSC "Afrikantov OKB Mechanical Engineering".
Molodtsov A.A. – Head of Bureau, Cand. Sci. (Tech.), JSC "Afrikantov OKB Mechanical Engineering".
Lukyanov V.E. – Lead Design Engineer, Cand. Sci. (Tech.), JSC "Afrikantov OKB Mechanical Engineering".
Results of experimental investigations of the advanced fuel assembly ÒÂÑÀ with mixing grids (TBCA-12PLUS, TBCA-T.mod.2) are presented. The experimental equipment and results of experimental investigations of a critical heat flux on models ÒÂÑÀ with mixing grids are described. The experimental investigations were conducted on 19-rod models TBCA with three intermediate mixing grids including models with uniform and non-uniform axial heating. On the basis of the obtained experimental data for ÒÂÑÀ with mixing grids the correlation for critical heat flux calculation is developed and the thermal diffusion coefficient is determined. The validation results of subchannel thermo-hydraulic code KANAL for coolant local temperatures and critical heat flux in ÒÂÑÀ with mixing grids are presented.
fuel assembly, mixing grid, mixing vane, fuel rod simulator, departure from nucleate boiling, critical heat flux, critical heat flux correlation, thermal diffusion coefficient, coolant heating, void fraction
1. Samoylov O.B., Kupriyanov A.V., Fal'kov A.A., Shipov D.L., Molodtsov A.A., Luk'yanov V.E. Eksperimental'nye issledovaniya teplotekhnicheskikh kharakteristik TVSA s peremeshivayushchimi r eshetkami [Experimental studies of thermal characteristics TVSA with mixing grids]. Atomnaya energiya – Atomic Energy, 2014, vol. 116, no. 1, pp. 11-15.
2. Falkov A.A., Samoilov O.B., Kupriyanov A.V., Lukyanov V.E., Morozkin O.N., Shipov D.L. Experimental investigation and analysis of thermal-hydraulic characteristics of WWER-1000 alternative FA. Proc. 6th Int. Conf. WWER Fuel Performance, Modeling and Experimental Support. Albena, 2005.
3. Samoylov O.B., Fal'kov A.A., Shipov D.L., Luk'yanov V.E., Morozkin O.N. Teplotekhnicheskie effekty ot ispol'zovaniya peremeshivayushchikh reshetok-intensifikatorov v TVSA VVER-1000 [Thermal effects from the use of mixing grids-intensifiers in TVSA VVER-1000]. Trudy mezhdunarodnoy nauchno-tekhnicheskoy konferentsii "Obespechenie bezopasnosti AES s VVER" (MNTK-8) [Proc. Int. Sci. Tech. Conf. "Safety Assurance of NPP with VVER" (IRTC-8)]. Podol'sk, 2013.
4. GOST R ISO 16269-6-2005. Statisticheskie metody. Opredelenie statisticheskikh tolerantnykh intervalov [Statistical methods. Determination of statistical tolerance intervals]. Moscow, Standartinform Publ., 2005.