نتایج جستجو برای: direct ethanol alkaline fuel cell

تعداد نتایج: 2212067  

Journal: :iranian journal of hydrogen & fuel cell 2015
hossein ghadamian leyli ariyanfar mojtaba baghban yousefkhani hassanali ozgoli

in the presented research, heat transfer of a mobile electrolyte alkaline fuel cell (afc) (which the electrolyte has cooling role of system) has been considered. proper control volumes of system with specific qualification have been chosen. consequently, heat and mass transfer in control volumes have been assessed. considerations on them and contributed models lead to approve a double tube heat...

Journal: :ChemSusChem 2014
Prabhuram Joghee Svitlana Pylypenko Kevin Wood Guido Bender Ryan O'Hayre

A commercial PtRu/C catalyst postdoped with nitrogen demonstrates a significantly higher performance (~10-20% improvement) in the anode of an alkaline direct methanol fuel cell than an unmodified commercial PtRu/C catalyst control. The enhanced performance shown herein is attributed at least partially to the increased electrochemical surface area of the PtRu/C after postdoping with nitrogen.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 0

a semi-empirical mathematical model for predicting physical part of ignition delay period in the combustion of direct - injection diesel engines with swirl is developed . this model based on a single droplet evaporation model . the governing equations , namely , equations of droplet motion , heat and mass transfer were solved simultaneously using a rung-kutta step by step unmerical method . the...

Journal: :Journal of physics 2023

Abstract Direct ethanol fuel cell (DEFC) has the advantages of low pollution emissions, easy to carry, and high energy density. However, development cells is limited due catalytic activity poor stability electrode catalyst materials. Precious metal aerogels not only have three-dimensional self-supporting network structures but also excellent properties precious metals, which very good efficienc...

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