Investigations on justification and development of concept of directsteam NPP with water cooled reactor at supercritical parameters with fast resonance spectrum

12/29/2013 2013 - #04 Physics and technology of nuclear reactors

Glebov A.P. Klushin A.V.

https://doi.org/10.26583/npe.2013.4.15

The features of experimental reactor WWER-SCD-30 cooled by water of supercritical parameters (Р = 25 МPа, t = 540 °С), with power of 30 MWt are considered. This reactor is characterized by fast resonance neutron spectrum and twopass coolant flow scheme. Physical characteristics of WWER-SCD-30 calculated for three types of fuel are given. The first of them is based on UO2 with ~ 20 % enrichment. The two other fuel types are from depleted uranium enriched by weapon or commercial plutonium. Application of small fuel assemblies without sheath that consist of ~ 19 fuel pins in each is provided. Calculated data on fuel cycles with these fuel types including values of Kef and maximum power density distribution form factor Kq – on fuel assembly and KV – throughout the reactor core volume in dependence of burning up duration are presented. The heat removal scheme of NPP with WWER-SCD-30 reactor is discussed. The maximum temperature on the fuel pin cladding is not higher than 620 °С.

Link for citing the article: Glebov A.P., Klushin A.V. Investigations on justification and development of concept of directsteam NPP with water cooled reactor at supercritical parameters with fast resonance spectrum. Izvestiya vuzov. Yadernaya Energetika. 2013, no. 4, pp. 118-127; DOI: https://doi.org/10.26583/npe.2013.4.15 (in Russian).