Linearized mathematical model for PWR dynamics simulation

Joint Authors

Dimirdash, Nihad A.
Isawi, Izzat A.
al-Arini, Mahdi M. M.
Abd al-Hamid, Muhammad

Source

Arab Journal of Nuclear Sciences and Applications

Issue

Vol. 53, Issue 2 (30 Apr. 2020), pp.78-86, 9 p.

Publisher

The Egyptian Society of Nuclear Science and Applications

Publication Date

2020-04-30

Country of Publication

Egypt

No. of Pages

9

Main Subjects

Physics

Topics

Abstract EN

A linearized mathematical model for the pressurized water reactor (PWR) core dynamics is presented based on conservation of energy and mass balance.

The core and coolant system are treated as a lumped parameter while considering the delayed neutron effect.

The developed model is controlled by negative feedback reactivity from the coefficients of reactivity in the fuel and reactor coolant.

The model state variables are linearized first order differential equations with a steady state initial value and put in state space using Matlab/Simulink.

The reactor core dynamic response is investigated through transients introduced to the core model inlets represented in external reactivity insertion eg.

(0.001 Δk/k), 10% step decrease in core flow rate and 10 oF step decrease in core inlet coolant temperature.

The simulation results demonstrated the role of feedback reactivity form coolant temperature and Doppler Effect in stabilizing the core power and affecting the steady state values of core variables.

American Psychological Association (APA)

Dimirdash, Nihad A.& Abd al-Hamid, Muhammad& al-Arini, Mahdi M. M.& Isawi, Izzat A.. 2020. Linearized mathematical model for PWR dynamics simulation. Arab Journal of Nuclear Sciences and Applications،Vol. 53, no. 2, pp.78-86.
https://search.emarefa.net/detail/BIM-980032

Modern Language Association (MLA)

Dimirdash, Nihad A.…[et al.]. Linearized mathematical model for PWR dynamics simulation. Arab Journal of Nuclear Sciences and Applications Vol. 53, no. 2 (2020), pp.78-86.
https://search.emarefa.net/detail/BIM-980032

American Medical Association (AMA)

Dimirdash, Nihad A.& Abd al-Hamid, Muhammad& al-Arini, Mahdi M. M.& Isawi, Izzat A.. Linearized mathematical model for PWR dynamics simulation. Arab Journal of Nuclear Sciences and Applications. 2020. Vol. 53, no. 2, pp.78-86.
https://search.emarefa.net/detail/BIM-980032

Data Type

Journal Articles

Language

English

Notes

Includes appendix : p. 86

Record ID

BIM-980032