Comparison of probabilistic and deterministic methods for calculation of kinetic parameters of HWZPR. (January 2022)

• Record Type: Journal Article
• Authors: Taghizadeh, Leili; Zolfaghari, Ahmadreza; Zangian, Mahdi; Mokhtari, Javad; Sardjono, Yohannes
• Is Part Of: Annals of nuclear energy. Volume 165(2022)
• Publication Date: 2022-01
• Subjects: Adjoint flux -- Iterated Fission Probability method (IFP) -- Perturbation theory -- Reactor Kinetic Parameters -- Effective Delayed Neutron Fraction -- HWZPR; Nuclear energy -- Periodicals; Nuclear engineering -- Periodicals; 621.4805
• DOI: 10.1016/j.anucene.2021.108633
• Languages: English
• ISSNs: 0306-4549

Abstract

Highlights: The HWZPR kinetic parameters are calculated using deterministic and probabilistic methods. Developed IFP and K-ratio methods are applied in probabilistic method. A reactivity insertion experiment are done in the HWZPR to validate methods. Abstract: The accurate calculation of kinetic parameters, including the effective delayed neutron fraction and the neutron mean generation time, is very important in the study of time dependent neutron population behavior. To calculate these parameters, it is necessary to calculate the flux and adjoint flux in the phase space. In this paper, the kinetic parameters of the new core configuration of the heavy water zero power reactor (HWZPR) are calculated using two deterministic and probabilistic methods. The quantitative and qualitative discussion is presented to illustrate the advantages and disadvantages of each method. The maximum difference between the two accounting methods was less than 3%. The effect of different energy structures on the criticality and kinetic parameters has been investigated in the deterministic approach. Additionally, the calculated kinetic parameters of the HWZPR validated experimentally with a reactivity inject response. Good consistency has been observed between different methods of computation and experimental values.