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Št. zadetkov: 5
Advanced combustion concepts with innovative waste derived fuels
Urban Žvar Baškovič, Tomaž Katrašnik, Stefan Jakubek
Doktorska disertacija
Oznake: dissertations;doctoral thesis;internal combustion engines;advanced combustion concepts;alternative fuels;pollutants emissions;0D thermodynamic calculation;
Numerical and experimental methodologies were developed in the dissertation with the goal of improving internal combustion engine control and decreasing engine-out exhaust emissions leading to mitigated impact on the environment. An innovative numerical method for simultaneous determination of the p ...
Leto: 2019 Vir: Fakulteta za strojništvo (UL FS)
Methodology for efficient parametrisation of electrochemical PEMFC model for virtual observers
Andraž Kravos, Daniel Ritzberger, Christoph Hametner, Stefan Jakubek, Tomaž Katrašnik
Izvirni znanstveni članek
Oznake: PEM fuel cells;electrochemical PEM FC model;model-based design of experiments;reduced dimensionality models;parameter sensitivity;virtual observers;
Determination of the optimal design of experiments that enables efficient parametrisation of fuel cell (FC) model with a minimum parametrisation data-set is one of the key prerequisites for minimizing costs and effort of the parametrisation procedure. To efficiently tackle this challenge, the paper ...
Leto: 2021 Vir: Fakulteta za strojništvo (UL FS)
Thermodynamically consistent reduced dimensionality electrochemical model for proton exchange membrane fuel cell performance modelling and control
Andraž Kravos, Daniel Ritzberger, Gregor Tavčar, Christoph Hametner, Stefan Jakubek, Tomaž Katrašnik
Izvirni znanstveni članek
Oznake: PEM fuel cells;electrochemical model;performance modelling;reduced dimensionality models;parameter sensitivity;observers;
The reduction and prevention of degradation effects of proton exchange membrane fuel cells calls for precise on-line monitoring and control tools such as coupled virtual observers. To present significant progress in the area of computationally fast electrochemical models used in observer application ...
Leto: 2020 Vir: Fakulteta za strojništvo (UL FS)
Sensitivity based order reduction of a chemical membrane degradation model for low-temperature proton exchange membrane fuel cells
Ambrož Kregar, Philipp Frühwirt, Daniel Ritzberger, Stefan Jakubek, Tomaž Katrašnik, Georg Gescheidt
Izvirni znanstveni članek
Oznake: gorivna celica;PEMFC;kemijsko staranje membrane;membrana s perfluorirano sulfonsko kislino;reaktivne kisikove spojine;modeliranje;občutljivostna analiza;fuel cell;chemical membrane degradation;perfluorinated sulfonic acid membrane;reactive oxygen species;modeling;sensitivity analysis;
The chemical degradation of the perfluorinated sulfonic acid (PFSA) ion-exchange membrane as a result of an attack from a radical species, originating as a by-product of the oxygen reduction reaction, represents a significant limiting factor in a wider adoption of low-temperature proton exchange mem ...
Leto: 2020 Vir: Fakulteta za strojništvo (UL FS)
Physically motivated water modeling in control-oriented polymer electrolyte membrane fuel cell stack models
Zhang Peng Du, Andraž Kravos, Christoph Steindl, Tomaž Katrašnik, Stefan Jakubek, Christoph Hametner
Izvirni znanstveni članek
Oznake: fuel cells;polymer electrolyte membrane;control-oriented model;physically motivated model;water modeling;liquid water effects;analytical differentiable model;
Polymer electrolyte membrane fuel cells (PEMFCs) are prone to membrane dehydration and liquid water flooding, negatively impacting their performance and lifetime. Therefore, PEMFCs require appropriate water management, which makes accurate water modeling indispensable. Unfortunately, available contr ...
Leto: 2021 Vir: Fakulteta za strojništvo (UL FS)
Št. zadetkov: 5
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