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Stamoulis K.,Technological Education Institute TEI of West Macedonia | Mermiklis V.,Technological Education Institute TEI of West Macedonia | Kostea S.,Technological Education Institute TEI of West Macedonia | Trichakis M.,Technological Education Institute TEI of West Macedonia | Kiratzis N.E.,Technological Education Institute TEI of West Macedonia
ECS Transactions | Year: 2010

Anode selection in Solid Oxide Fuel Cells (SOFCs) has been a challenging problem particularly in fulfilling the requirements for low temperature operation (i.e. 500-750°C) of those cells and for operation under conditions suitable for direct hydrocarbon oxidation (i.e. without intermediate reforming). Both the above requirements would significantly reduce the fabrication cost of these cells. A promising strategy in promoting the above goals is to replace conventional Ni-Yttria Stabilized Zirconia (YSZ) cermets that under hydrocarbon atmospheres favor the formation of carbon filaments especially above 700°C with cermets containing a catalytically inert metal such as Cu. In this communication we examine and compare the electrochemical performance of Cu-based cermets containing either CeO 2 or the perovskite (La 0.75Sr 0.25)Cr 0.5Mn 0.5O 3-δ (LSCM) as ceramic components at 700°C. The cermets were prepared using conventional ceramic techniques and their electrochemical performance was examined in an YSZ tubular reactor under either H 2 or CH 4 and under open and close circuit conditions. ©The Electrochemical Society.


Kiratzis N.E.,Technological Education Institute TEI of West Macedonia
Ionics | Year: 2016

The technique of solution aerosol thermolysis (SAT) for the production of components suitable for operation of solid oxide fuel cells (SOFC) is reviewed. Major advantages of the technique include its versatility, low cost, and control of the product stoichiometry at droplet level. Progress in understanding the major physicochemical parameters that play a role in final film morphology is emphasized. © 2016 Springer-Verlag Berlin Heidelberg


Diakaki C.,Technical University of Crete | Papageorgiou M.,Technical University of Crete | Dinopoulou V.,Technological Education Institute TEI of West Macedonia | Papamichail I.,Technical University of Crete | Garyfalia M.,Technical University of Crete
IET Intelligent Transport Systems | Year: 2015

In the years to come, public transport (PT) will be called to play a significant role towards achieving the sustainable transport system objective set for the future in Europe and beyond. To this end, the quality, accessibility and reliability of its operations should be improved. In this context, the favourable treatment of PT means within the road network may have, among others, a significant contribution. Such treatment can be derived as a result of an appropriate design of the road network facilities and/or the employed signal control at the network junctions. To this end, several approaches have been proposed, and it is the aim of this study to review the state-of-the-art and -practice in such approaches, focusing mainly on those attempting to provide priority via appropriate adjustment, in real time, of the junctions' signal control. © The Institution of Engineering and Technology 2015.

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