Figure 1. Five fuel and ten coolant lumps reactor core model; *only one out of ten coolant and one out of five fuel feedback paths are shown

From

Frequency Domain Comparison of Multi-lump and Distributed Parameter Models for Pressurized Water Reactor Cores

Taipeng Zhang, Keith E. Holbert

American Journal of Energy Research. 2013, 1(1), 17-24 doi:10.12691/ajer-1-1-3