Linear model of a closed three-shaft Brayton cycle
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Date
Authors
Van Niekerk, C.R.
Pritchard, J.F.
Van Schoor, G.
Van Wyk, M.A.
Journal Title
Journal ISSN
Volume Title
Publisher
SAIEEE
Abstract
A linear model of a closed three-shaft Brayton cycle at normal power operation is
developed. The model is intended to give an understanding of the dominant dynamic behaviour in a
nuclear power system that utilizes a closed three-shaft Brayton cycle. The insights gained from the
model can be used for system design as well as for
the design of control algorithms.
A conceptual linear model is constructed and it is
explained how this model can be developed starting
with the models of the turbines and compressors followed by models of the shafts and the volumes
inside the circuit to finally obtain the linear state space equations. A time domain comparison is made
between the linear system model and the responses predicted by the thermal-fluid analysis software
program, Flownet
Description
Citation
Van Niekerk, C.R. et al. 2006. Linear model of a closed three-shaft Brayton cycle. SAIEE Africa research journal, 97(1):50-56. [http://www.saiee.org.za/displaycustomlink.aspx?name=AfricaResearchJournal]