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rdf:type
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Description
| - Navrhli jsme jednoduchý termodynamický model fungování palivového článku. Je založený na dvou bilančních rovnicích popisujících transport molekul vody a protonů skrze membránu, a dvou reakčních rovnicích popisujících chemické reakce na elektrodách palivového článku. Analýza modelu pomocí metod nerovnovážné termodynamiky odhalila zajímavé vztahy mezi transportními vlastnostmi membrány a její optimální tloušťkou, a dále omezení na maximální účinnost článku. (cs)
- We propose a simple diffusion model of a PEM fuel cell and perform its thermodynamic analysis. Our description is based on a set of two mass balance equations involving water and proton transport through the membrane coupled with two reaction equations describing the electrochemical reactions at the electrodes. Equations for the water and proton flux densities are constructed in a linearized form suitable for the analysis from the point of view of irreversible thermodynamics. In terms of our simplified model, relations for the characteristic thickness of a PEM membrane is derived, and the maximum efficiency of a fuel cell is evaluated, both as functions of the transport properties of the PEM material.
- We propose a simple diffusion model of a PEM fuel cell and perform its thermodynamic analysis. Our description is based on a set of two mass balance equations involving water and proton transport through the membrane coupled with two reaction equations describing the electrochemical reactions at the electrodes. Equations for the water and proton flux densities are constructed in a linearized form suitable for the analysis from the point of view of irreversible thermodynamics. In terms of our simplified model, relations for the characteristic thickness of a PEM membrane is derived, and the maximum efficiency of a fuel cell is evaluated, both as functions of the transport properties of the PEM material. (en)
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Title
| - The characteristic thickness of polymer electrolyte membrane and the efficiency of fuel cell
- Charakteristická tloušťka membrány a účinnost palivových článků (cs)
- The characteristic thickness of polymer electrolyte membrane and the efficiency of fuel cell (en)
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skos:prefLabel
| - The characteristic thickness of polymer electrolyte membrane and the efficiency of fuel cell
- Charakteristická tloušťka membrány a účinnost palivových článků (cs)
- The characteristic thickness of polymer electrolyte membrane and the efficiency of fuel cell (en)
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skos:notation
| - RIV/61388998:_____/07:00087220!RIV08-AV0-61388998
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http://linked.open.../vavai/riv/strany
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
| - P(KJB400760701), Z(AV0Z20760514)
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/61388998:_____/07:00087220
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - PEM; fuel cell; irreversible thermodynamics (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...ontrolniKodProRIV
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http://linked.open...v/mistoKonaniAkce
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http://linked.open...i/riv/mistoVydani
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http://linked.open...i/riv/nazevZdroje
| - 5th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics (HEFAT-2007)
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...iv/tvurceVysledku
| - Maršík, František
- Němec, Tomáš
- Mičan, O.
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http://linked.open...vavai/riv/typAkce
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http://linked.open.../riv/zahajeniAkce
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http://linked.open...n/vavai/riv/zamer
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number of pages
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http://purl.org/ne...btex#hasPublisher
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https://schema.org/isbn
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