Faculté  des  Sciences  Appliquées   Département  d’Aérospatiale  et  Mécanique   Thermodynamics  Laboratory   Energy  System  Research  Group   Prof.  Vincent  Lemort,  Assistant  Professor    

Master Thesis Proposal 2016-2017 Location

Thermodynamics Laboratory University of Liège Belgium

Internship

To confirm

Period

2016-2017

Topic

Experimental study of a multi-evaporator air-conditioning system

Masters l l l

Electromechanical and mechanical engineers

Aerospace Electro mechanics Mechanics

Scientific advisor

Thomas Gillet ([email protected])

Academic advisor

Vincent Lemort ([email protected])

Description

Over the last decade, vehicle electrification has increased to meet the demands of reducing fuel consumption and greenhouse gas emissions. With the arrival of plug-in hybrid electric vehicles (PHEV) and battery electric vehicles (BEV) with significant autonomy, battery cooling becomes a necessity in driving mode to ensure their durability and ability to charge rapidly. For these vehicles, the air-conditioning system may be composed of two evaporators (for front and rear passengers) in order to afford cooled air in the cabin and a chiller or a built-in battery evaporator to cool down the traction battery. A chiller is a glycol water-to-refrigerant evaporator which enables heat to be transferred between a secondary loop and the air conditioning loop.

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Faculté  des  Sciences  Appliquées   Département  d’Aérospatiale  et  Mécanique   Thermodynamics  Laboratory   Energy  System  Research  Group   Prof.  Vincent  Lemort,  Assistant  Professor  

The goal of this thesis is to adapt a test facility available in the Thermodynamics Laboratory in order to be able to test the airconditioning loop under specific transient working conditions. Maintaining the cooling capacity in each evaporator during different kind of disturbances is of prime concern. A global control strategy will thus be investigated. The collected data will then be used in order to validate a dynamic model of the multi-evaporator air-conditioning system developed with LMS Imagine.Lab Amesim® 1D software.      

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