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Thermal Exchange Modelling and Power Optimization (TEMPO)
Start date: Nov 1, 2011, End date: Oct 31, 2014 PROJECT  FINISHED 

"In the frame of the proposed project, a comprehensive Modelica library for the modelling of aircraft air conditioning and thermal management will be developed, covering all relevant fluid domains as well as mechanical, electrical and control aspects. The developed library will cover:Vapour cycle system, including valves, heat exchangers (two phase – two phase, two phase – liquid, two phase – air), reservoirs and refrigerant compressorsAir cycle system, including compressor, turbines, air – air heat exchangers, water extractors and sprayers, fans, jet pumps, valves and scoopsLiquid loop systems, including piping, pumps, valves, air – liquid heat exchangers and reservoirs1-D aircraft cabin model, covering 3-D effects backed by experimental validationAir distribution system models e.g. ducting and mixing chamberElectrical and mechanical models including motor drives, bearing losses and mechanical connectionsSystem control capabilities and linking the models to external toolsThe library will be developed using the latest features of the Modelica language for more robust and efficient simulation. Object-oriented modelling and a user-oriented library structure will allow efficient future development and extension of the library.The developed models will fully support multilevel modelling, allowing an easy switching between dynamic and steady state modelling for different design phases.On the basis of this library, a multi-objective optimization strategy will be developed, making full use of the newly created capabilities to model the multi-domain system interdependencies. The multi-objective optimization strategy shall help to find optimum system architectures with respect to the targets of the Clean Sky JTI i.e. minimum environmental impact at minimum overall cost and maximum passenger comfort."
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