Naslov
Modeling for a more efficient solar hydrogen energy system

Autori
Grašovec, Marko ; Jovic, Franjo ; Firak, Mihajlo ; Metikoš-Huković, Mirjana

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of Abstracts Fuel cells Science and technology 2002., Scientific advances in fuel cell systems, Amsterdam, Nizozemska / - , 2002

Skup
Fuel cells Science and technology 2002., Scientific advances in fuel cell systems, Amsterdam, Nizozemska

Mjesto i datum
Amsterdam, Nizozemska, 25.09.2002. - 26.09.2002

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
fuel cells; hydrogen storage; electrocatalysis; solar energy

Sažetak
Hydrogen is a simple, clean and inexhaustible source of energy-the potential fuel of the future. It may be obtained from water electrolysis driven by the power of solar energy using a photovoltaic module. In this study, hydrogen evolution takes place on a nickel electrode in an alkali hydrogen generator (single electrolysis cell) with separate cathodic and anodic compartments. The necessary power is obtained from a photovoltaic module. The investigated model system was designed and constructed from several subunits: a PV module, an electrolyzer and a hydrogen container. Basic system parameters have been measured and analyzed. Electrocatalytic measurements have been performed using cyclic voltammetry, electrochemical impedance spectroscopy and linear quasi-potentiostatic polarization. The kinetic parameters have been calculated for cathodic and anodic processes. A simulation of a solar hydrogen energy system has been developed to determine and optimize its operating performance and applicability. The experimental data pointed to a need for coordinating the PV module with the electrolyzer during optimization of the solar hydrogen energy system (when designing an optimum solar hydrogen energy system).

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Kemijsko inženjerstvo

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