The Emulation Research of a Heat-Exchanger Based on Segment Linearization

To accurately obtain emulation model of a heat- exchanger, segment linearization was applied to the lumped parameter model: the whole heat-exchanger was divided several segments equally and became their connection. Each small heat- exchanger applied the lumped parameter model of segment linearization. At the same time, the whole heat-exchanger embodied distribution parameter´s characteristics of several small heat-exchangers´ connection. Then the relevant emulation model was made according to this method. The emulation results show that the emulation model can effectively simulate the real dynamic process of a heat exchanger´s operation.