Kurum Yazarı "Akyalçın, Levent" Scopus İndeksli Yayınlar Koleksiyonu İçin Listeleme
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Electrode optimization for direct methanol fuel cells
Köseler, S.; Akyalçın, Levent; Kaytakoğlu, Süleyman (ENEA, 2009)In this study, the Taguchi method was used to optimize the structural combination of electrode constituents of a direct methanol fuel cell (DMFC). The variance analysis was also performed in order to determine the optimum ... -
Flue gas desulfurization by citrate process and optimization of working parameters
Akyalçın, Levent; Kaytakoğlu, Süleyman (Elsevier Science Sa, 2010)In this study, model flue gas was bubbled into 0.25 L tribasic sodium citrate (TSC) solution being in 0.5 L glass absorber to remove its SO2 content. Size of gas bubbles, absorption temperature, gas flow rate, solution ... -
MEA and methanol concentration optimization of a passive direct methanol fuel cell
Akyalçın, Levent; Kaytakoğlu, Süleyman (ENEA, 2009)Passive direct methanol fuel cells (PDMFC) come to attention of portable electronic devices manufacturer as promising power generators. However, it is necessary to maximize the power density of PDMFC's with optimized system ... -
Optimization of desilication parameters of low-silica ZSM-12 by Taguchi method
Akyalçın, Sema; Akyalçın, Levent; Bjorgen, M. (Elsevier Science BV, 2019)Zeolite ZSM-12 was synthesized by a direct hydrothermal method and subsequently desilicated by alkaline treatment under different conditions. Changes in the properties of the zeolite samples were investigated by XRD, ... -
Optimization of parametric performance of a PEMFC
Kaytakoğlu, Süleyman; Akyalçın, Levent (Pergamon-Elsevier Science LTD, 2007)In this study, the Taguchi method was applied to determine optimum working conditions in obtaining maximum power density of a PEMFC. Performance measure analysis was also followed by performing a variance analysis, in order ... -
Optimization of structural combinations on the performance of a PEMFC's MEA
Akyalçın, Levent; Kaytakoğlu, Süleyman (Elsevier Science BV, 2008)In this study, the Taguchi method was applied to determine optimum structural combination of a membrane electrode assembly (MEA) in obtaining maximum power density of a PEMFC. Performance measure analysis was also followed ... -
The Seebeck coefficient and the Peltier effect in a polymer electrolyte membrane cell with two hydrogen electrodes
Kjelstrup, S.; Vie, P. J. S.; Akyalçın, Levent; Zefaniya, P.; Pharoah, J. G.; Burheim, O. S. (Pergamon-Elsevier Science LTD, 2013)We report that the Seebeck coefficient of a Nafion membrane cell with hydrogen electrodes saturated with water vapour, at 1 bar hydrogen pressure and 340 K, is equal to 670 +/- 50 mu V/K, meaning that the entropy change ...