Thermodynamic modeling and assessment of a combined coal gasification and alkaline water electrolysis system for hydrogen production

2014 ◽  
Vol 39 (7) ◽  
pp. 3061-3071 ◽  
Author(s):  
Münür Sacit Herdem ◽  
Siamak Farhad ◽  
Ibrahim Dincer ◽  
Feridun Hamdullahpur
Keyword(s):  
Hydrogen Production ◽  
Thermodynamic Modeling ◽  
Coal Gasification ◽  
Water Electrolysis ◽  
Alkaline Water Electrolysis ◽  
Alkaline Water ◽  
Electrolysis System

Modeling and Optimization of an Alkaline Water Electrolysis for Hydrogen Production

2021 ◽  
Author(s):  
Katherine Stewart ◽  
Laurianne Lair ◽  
Brenda De La Torre ◽  
Nguyen L. Phan ◽  
Rupak Das ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Water Electrolysis ◽  
Alkaline Water Electrolysis ◽  
Alkaline Water ◽  
Modeling And Optimization

scholarly journals Synthesis of titanium (IV) oxide composite membrane for hydrogen production through alkaline water electrolysis

2018 ◽  
Vol 25 ◽  
pp. 54-61 ◽  
Author(s):  
S. Shiva Kumar ◽  
S.U.B. Ramakrishna ◽  
S. Vijaya Krishna ◽  
K. Srilatha ◽  
B. Rama Devi ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Composite Membrane ◽  
Water Electrolysis ◽  
Alkaline Water Electrolysis ◽  
Alkaline Water ◽  
Oxide Composite

scholarly journals CFD Modeling and Experimental Validation of an Alkaline Water Electrolysis Cell for Hydrogen Production

Processes ◽  
2020 ◽  
Vol 8 (12) ◽  
pp. 1634
Author(s):  
Jesús Rodríguez ◽  
Ernesto Amores
Keyword(s):  
Fluid Dynamics ◽  
Hydrogen Production ◽  
Current Density ◽  
Fluid Dynamic ◽  
Water Electrolysis ◽  
Operating Conditions ◽  
Cfd Modeling ◽  
Electrolysis Cell ◽  
Alkaline Water Electrolysis ◽  
Alkaline Water

Although alkaline water electrolysis (AWE) is the most widespread technology for hydrogen production by electrolysis, its electrochemical and fluid dynamic optimization has rarely been addressed simultaneously using Computational Fluid Dynamics (CFD) simulation. In this regard, a two-dimensional (2D) CFD model of an AWE cell has been developed using COMSOL® software and then experimentally validated. The model involves transport equations for both liquid and gas phases as well as equations for the electric current conservation. This multiphysics approach allows the model to simultaneously analyze the fluid dynamic and electrochemical phenomena involved in an electrolysis cell. The electrical response was evaluated in terms of polarization curve (voltage vs. current density) at different operating conditions: temperature, electrolyte conductivity, and electrode-diaphragm distance. For all cases, the model fits very well with the experimental data with an error of less than 1% for the polarization curves. Moreover, the model successfully simulates the changes on gas profiles along the cell, according to current density, electrolyte flow rate, and electrode-diaphragm distance. The combination of electrochemical and fluid dynamics studies provides comprehensive information and makes the model a promising tool for electrolysis cell design.

A study on the Co–W activated Ni electrodes for the hydrogen production from alkaline water electrolysis – Energy saving

2011 ◽  
Vol 36 (9) ◽  
pp. 5227-5235 ◽  
Author(s):  
Milica P. Marceta Kaninski ◽  
Snezana M. Miulovic ◽  
Gvozden S. Tasic ◽  
Aleksandar D. Maksic ◽  
Vladimir M. Nikolic
Keyword(s):  
Hydrogen Production ◽  
Energy Saving ◽  
Water Electrolysis ◽  
Alkaline Water Electrolysis ◽  
Alkaline Water
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