/ 47 UNDERSTANDING THE FUEL CELL A comprehensive set of electro-chemical and physical models is offered by AVL FIRE™ in order to simulate the processes taking place in polymer electrolyte membrane fuel cells (PEM FC). AVL FIRE™ also solves the electro-chemical reactions in the catalyst layers. Water transport and the transport of hydrogen ions and gas species are calculated in the membrane. Phenomena handled in the gas diffusion layer include the capillary �� ow of li��uid water and electron conduction. In addition, phase change due to evaporation and condensation, multi-phase momentum transfer, the multi-component diffusion of gas species and multiphase heat transfer are modelled. Heat and electron conduction are calculated in the bi-polar plates. Simulation of the cooling channels is also provided to measure convective heat transport. ENERGY EFFICIENCY IS THE FINAL GOAL Vehicle component and sub- system development cannot be done in isolation if the goal is to improve the fuel economy, performance and driveability. The acceptance and success of a new vehicle is determined ��y its strategic target defi nition, the choice of the powertrain confi guration including the selection and sizing of the components in the early vehicle development phase. AVL CRUISE™ offers a wide range of implemented electric components on a system level, dynamic visualization of power �� ow and energy distri��ution analysis, as well as user specifi c model integration from other tools. These attributes provide an sustainable base for all hybrid concepts as well as control function development for all vehicle types from PEV to full HEV and other alternative powertrain solutions. Simulation of a PEM-FC with AVL FIRE™ Results from AVL CRUISE™: Vehicle electrifi cation effi ciency assessment
Solutionskatalog_2017_E
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