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In this paper we study the frequency and time domain behaviour of a heat exchanger network system. The system is governed by hyperbolic partial dierential equations. Both the control operator and the observation operator are unbounded but admissible. Using the theory of symmetric hyperbolic systems, we prove exponential stability of the underlying semigroup for the heat exchanger network. Applying the recent theory of well-posed innite-dimensional linear systems, we prove that the system is regular and derive various properties of its transfer functions, which are potentially useful for controller design. Our results remain valid for a wide class of processes governed by symmetric hyperbolic systems.

Exponential Stability and Transfer Functions of Processes Governed by Symmetric Hyperbolic Systems