Modeling and simulation of an electrolyser for the production of HHO in Matlab- Simulink

The electrolyzers work through an electrochemical process, their derivatives (H2, O2, and HHO) are used as enriching fuels due to the electrolysis of water, being cleaner than gasoline and diesel. This article presents the dynamic model of an alkaline electrolyzer that uses an electrolyte (KOH o NaH...

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Detalles Bibliográficos
Autores: Rincón Castrillo, Erick Daniel, Bermudez Santaella, Jose Ricardo, Vera Duarte, Luis Emilio, garcia pabon, juan jose
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:Colombia
Institución:Universidad Francisco de Paula Santander
Repositorio:Repositorio Digital UFPS
Idioma:inglés
OAI Identifier:oai:repositorio.ufps.edu.co:ufps/326
Acceso en línea:http://repositorio.ufps.edu.co/handle/ufps/326
https://doi.org/10.22463/0122820X.1826
Access Level:acceso abierto
Palabra clave:Dynamic model
Simulation
Matlab-Simulink
EES
Alkaline Electrolyser
Electrolizador alcalino
Modelo dinámico
Simulación
Descripción
Sumario:The electrolyzers work through an electrochemical process, their derivatives (H2, O2, and HHO) are used as enriching fuels due to the electrolysis of water, being cleaner than gasoline and diesel. This article presents the dynamic model of an alkaline electrolyzer that uses an electrolyte (KOH o NaHCO3) dissolved in distilled water to accelerate the production of oxyhydrogen (HHO). The model shows the phase change that occurs inside the electrolytic cell. The EES® software was used to determine the values of enthalpy, entropy, and free energy that vary during the electrochemical reaction; the equations were simulated in Matlab-Simulink® to observe their dynamic behavior. The Simulations presented varying every 5 g the electrolyte until reaching 20 g. The flow rate of HHO with potassium hydroxide (20 g) is higher than 0.02 L / s, and with sodium bicarbonate (20 g) it is above 0.0006 L / s, confirming what the literature of alkaline cells state, that the most efficient electrolyte for its energy conversion is KOH