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Simulation of an absorption chiller based on a physical model
Zitatschlüssel Flessner2009
Autor Fle$\backslash$ssner, Christian and Petersen, Stefan and Ziegler, Felix
Buchtitel Proceedings of the 7th International Modelica Conference, Como, Italy, 20-22 September 2009
Seiten 312–317
Jahr 2009
DOI 10.3384/ecp09430071
Herausgeber Casella, Francesco
Zusammenfassung Previous works on simulation of air conditioning systems with absorption chillers in conjunction with detailed experimental analysis have shown a need for a more detailed and generalized modelling and simulation of heat and mass transfer processes in absorption chillers. An existing model for absorption is adapted to be applicable for subcooled or superheated liquids and for the desorption process. New classes compatible with the Modelica_Fluid library (beta 2) for these sub-processes are developed. A media model for evaporating aqueous salt solutions based on Modelica. Media is developed and implemented accordingly. Subsequently, simulations of a complete absorption chiller are conducted and compared with experimental data. The comparison of simulations under stationary conditions show a good agreement with experimental data while the transient behaviour of the plant is not yet fully implemented in the model.
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