From wave to jet and from jet to hydrogen: A promising hybrid system |
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Authors: | Rafael Sánchez-Dirzo Rosa G González-Huerta Edgar Mendoza Rodolfo Silva Juan Manuel Sandoval Pineda |
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Affiliation: | 1. Facultad de Estudios Superiores Zaragoza, Campus II, UNAM Iztapalapa, México, D.F., Mexico;2. ESIQIE-IPN, Laboratorio de Foto-Electrocatálisis, UPALM, C.P. 07738 México, D.F., Mexico;3. Instituto de Ingeniería, UNAM. Ciudad Universitaria, México, D.F., Mexico;4. ESIME-IPN-UA, Sección de Posgrado, Av. de las Granjas 682, C.P. 07738 México, Mexico |
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Abstract: | One of the main challenges that our society must overcome in this century is that of finding alternative energy sources to fossil fuels. These, ideally, must be inexpensive, less polluting than current fuels and available for a substantial time. One promising alternative is hydrogen, which has the great advantage that it can be produced by coupling renewable energy devices with water electrolysis. Several projects devoted to connecting photovoltaic and wind systems with electrolysis devices have been successful; however, little research has been done into the coupling of ocean wave energy converters with water electrolysis. The work here proposes a basic system that stores the energy from waves in the form of hydrogen. The WEC considered is a novel design known as a Blow-Jet, which captures waves and converts them into a water jet. The performance of the Blow-Jet is found to depend more on wavelength than on wave height. The electrolyser results show, at 0.200 A and 1.88 V, that the electrolysis of water produces 0.082 Nl h−1 of hydrogen and a current efficiency (ηI) of 90.58%. |
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Keywords: | Wave power Wave energy converters Blow-Jet Electrolyser Hydrogen production Energy storage systems |
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