Performance analysis was made for the generator of the absorption refrigeration cycle using TFE/NMP as a working fluid. In this study the dynamic model was constructed. This model includes the heat and mass transfer characteristics in the generator and is able to predict the outlet concentration and the flow rate of the generated refrigerant vapor according to the change of the operating conditions of the absorption refrigeration cycle. The heat transfer in the generator was decided giving the heat transfer coefficient with temperature difference between the heat transfer wall of the generator and the solution. And the mass transfer was decided giving the over-all mass transfer coefficient between the solution bulk flow and the generated refrigerant bubbles.
In this study the change of the concentration and the flow rate of the generated refrigerant vapor was mainly calculated when the strong solution flow rate, the generator wall temperature and the generation pressure were dynamically increased in incremental steps. And in starting and stopping the system, the effect of the generative heat transfer coefficient, over-all mass transfer coefficient and the strong solution flow rate were investigated.

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