SIMULATION OF THE DYNAMIC BEHAVIOR OF HEA T-EXCHANGERS

Four models for heat exchangers under transient conditions are present ed. Three of them describe a single phase heat exchanger, and the fort h one is used for the simulation of a condenser. All models are of int ermediate complexity and valid for simulation of both single heat exch angers and chemical processes. They use distributed variables and inco rporate the calculation of local heat transfer coefficients so that te mperature profiles over the apparatus can be determined in addition to the transient behaviour of the outlet variables.