| Heat exchanger has a wide application in national defense industry, chemical industry, petroleum industry and aerospace industry, the occasion of application is also increasing. So great importance has been attached to the performance study of heat exchanger.With the change of application occasions of heat exchanger today, the working condition of every time and every moment of it should be known, so the characteristics and parameters of dynamic changes. But the past research just stayed in the steady state; which obviously can not meet the needs of current heat exchanger applications.Considering working condition and economics of heat exchanger, such as not suitable for experiment, not allowed to do experiments, high cost and so on. As a result computer simulation has become an effective method for dynamic characteristics study of heat exchanger.In this paper, the overall mathematical model of heat exchanger, overcoming the need of linear of the traditional model, has been established. By using MATLAB/SIMULINK, building simulation module, writing S-function, simulation is done. The simulation module and program have versatility, which can adapt to simulation of different heat exchangers. |
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