II. Modelling of a Heat ExchangerTwo models for two different control schemes are developed for a parallel flow heat exchanger. First by spatially lumping a heat exchanger model, a good approximate model which has a high system order is produced. Model reduction techniques are applied to these obtain low order models that are suitable for dynamic analysis and control design. The simulation method is discussed to ensure a valid simulation result.

The results presented in this paper demonstrate that good reduced order models can be obtained directly by recursive parameter identification using I/O data of high order nonlinear systems.

This paper presents the analysis, design, and simulation of a load control System for an industrial tire tester. A nonlinear state-space-like representation of the system is developed for system evaluation and design. It is shown that a linearizing feedback control law may be obtained using linear system theory. Simulation results are included to demonstrate the tractability of the control system design being proposed. INTRODUCTIONIn industry, a large number of practical systems often require the use of hydraulic cylinders to move large loads in a desired manner.