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12 results on '"Błesznowski, Marcin"'

11. Determination of HS and HCl concentration limits in the fuel for anode supported SOFC operation.

Author

Błesznowski, Marcin, Jewulski, Janusz, and Zieleniak, Agata

Abstract

Solid oxide fuel cell (SOFC) is an electric generator, operating based on electrochemical reaction converting gaseous fuel to electricity and heat. It is characterized by the high electrical efficiency of up to 70% with cogeneration and negligible emission of pollutants. Syngas from the biomass gasification is considered to be a possible fuel for solid oxide fuel cell systems. However, high level of contaminants such as HS, HCl, alkali metals, tars and particulates, in addition to possibility of carbon deposition and high temperature gradients due to internal reforming of hydrocarbons requires cleaning and conditioning of the syngas stream. The current status of the effect of contaminants on the SOFC performance has been reviewed and effects of single contaminants (HS, HCl) has been tested. It has been found that anode supported solid oxide fuel cell (AS-SOFC) with Ni/YSZ cermet anode can tolerate up to 1 ppm HS and up to 10 ppm HCl without significant performance degradation. [Figure not available: see fulltext.] [ABSTRACT FROM AUTHOR]

Published
2013
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12. The Institute of Power Engineering Activity in the Solid Oxide Fuel Cell Technology

Author

Golec, Tomasz, Antunes, Rui, Jewulski, Janusz, Miller, Mirosław, Kluczowski, Ryszard, Krauz, Mariusz, Krząstek, Kazimierz, and Błesznowski, Marcin

Abstract

Electrolyte supported cells (ESC) were manufactured using tape casting and screen printing technology and the corresponding anode supported cells (ASC) manufacturing is currently under development. In the present study, “symmetrical” cathode-electrolyte-cathode solid oxide fuel cell (SOFC) single cells were also fabricated and tested using electrochemical impedance spectroscopy and scanning electron microscopy. The functional and contact layer properties were characterized by means of microscopic and electrochemical methods. Influence of thickness and grain size of layers on the cell performance was systematically investigated. the design of cell, stack and system was helped by computational fluid dynamics and system modeling. The gas flow distribution in the SOFC stack was systematically investigated. The ESC-SOFC cells developed at the Institute of Power Engineering achieved good performance as a result of improvements in ceramic processing. The present activities concentrate on ASC-SOFC cell development, cell testing and cell/stack/system design.

Published
2010
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