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Infrysning av livsmedel - Simulering av en industriell process

Design and operation of industrial freezers contains the crucial problem of how to make the frozen foods attain a prescribed temperature. Methods for prediction of freezing times under given constant conditions are commonly used in order to calculate the optimum product flow through continuous freezers. However, in reality the processes are time variable, due to disturbances and parameter deviatio

Metod för simulering av termodynamiska system

This master thesis develops and tests models for simulation of district heating networks. Starting with an example of a thermodynamical system, methods were developed to describe the system with modules. Three elementary modules have been defined: R-, E- and C-module. (R=resistance, E=energy transport element, C=capacitor) More complicated components, such as boilers and heat exchangers, can be vi