
dr inż. Ewa Janicka
Media społecznościowe
Kontakt
- ewa.janicka@pg.edu.pl
Adiunkt
- Miejsce pracy
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Budynek C Wydz. Chemii
pokój 311 otwiera się w nowej karcie - Ewa.janicka@pg.edu.pl
Wybrane publikacje
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A complete impedance analysis of electrochemical cells used as energy sources
A comprehensive description of impedance ofelectrochemical systems has been presented, along withthe assumptions of the method used. In this method, amultisinusoidal current excitation signal is used. Thechanges of potential of both the electrodes and thepotential difference between these electrodes are allregistered simultaneously as a function of time. Theproposed method offers the possibility of separatelydetermining the instantaneous...
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Implementation of DEIS for reliable fault monitoring and detection in PEMFC single cells and stacks
Dynamic Electrochemical Impedance Spectroscopy (DEIS) was presented as novel method for diagnostic and monitoring of PEMFC stack and single cells operation. Impedance characteristics were obtained simultaneously with current - voltage characteristics for stack and each individual cell. Impedance measurements were performed in galvanodynamic mode. It allowed to compare performance of each cell and identification of faulty cell operation...
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The influence of dynamic load changes on temporary impedance in hydrogen fuel cells, selection and validation of the electrical equivalent circuit
To achieve optimal performance of a fuel cell, a reliable monitoring and diagnostic method is required. The currently utilized methods give limited information or they are impossible to use under dynamic working conditions. To obtain comprehensive information about the fuel cell operation we utilized novel dynamic electrochemical impedance spectroscopy. Impedance measurements in dynamic mode were performed on a hydrogen fuel cell,...
wyświetlono 1125 razy