Page 202 - Dynamics and Control of Nuclear Reactors

200 CHAPTER 14 Pressurized heavy water reactors

1.0045

1.004
1.0035

zone 1 power (FPU) 1.0025
1.003

1.002

1.0015

1.001
1.0005

1
0 5 10 15 20 25
time (h)
FIG. 14.5
Power variation in zone 1 due to ramp reactivity insertion in zone 1: FPU: Full Power Unit.
Used with permission from Nuclear Technology, Francis & Taylor (H. Javidnia, J. Jiang, M. Borairi, Modeling and
simulation of a CANDU reactor for control system design and analysis, Nucl. Technol. 165 (2) (2009) 174–189).

1.0002
zone 2
zone 3
1.0001 zone 4
zone 5
zone 6
1 zone 7
zonal powers (FPU) 0.9999

0.9998

0.9997

0.9996

0.9995
0 5 10 15 20 25
time (h)
FIG. 14.6
Power variation in zones 2-7 due to ramp reactivity insertion in zone 1. FPU: Full Power Unit.
Used with permission from Nuclear Technology, Francis & Taylor (H. Javidnia, J. Jiang, M. Borairi, Modeling and
simulation of a CANDU reactor for control system design and analysis, Nucl. Technol. 165 (2) (2009) 174–189).