Theoretical research aiming at high‐efficiency hydeogen production using solar thermochemical energy for the goal of sustainable energy supply
| Autor: | Nishimura, Takaki, Kodama, Tatsuya, Sakane, Genta, Ishii, Tomohiko |
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| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | 香川大学インターナショナルオフィスジャーナル. 14:253-259 |
| ISSN: | 1884-8745 |
| Popis: | application/pdf Novel energy styles and energy productions are so required, hydrogen energy has been much attraction from the viewpoint of the environment. Many utilities of the hydrogen energy have been studied, and the industry studies of hydrogen production have also been done. In Fig. 1, it is shown that the facility of the hydrogen production in Jülich. The "Green hydrogen technologies" project has been demonstrated, and the hydrogen gas has been sourced continuously from solar heat. It has the advantage of storing sustainable "solar energy", which can be irradiated from the sun to the earth as the form of "hydrogen energy". So, it makes good sense to convert intermittently solar energy (clean energy) to hydrogen energy (clean energy). Considering these points, Kodama et al. has studied new energy production of the solar thermochemical production by an oxidation‐reduction reaction of the cerium oxide (CeO2, ceria). In Fig. 2, the hydrogen production facility uses the solar thermochemical process at Miyazaki University in Japan. The flow of hydrogen production is shown in Fig. 3. Then, the sunlight can be concentrated by many heliostats and converted to thermal energy. The hydrogen gas can be generated by the thermal redox reaction with control of the reaction temperature. Moreover, the redox reaction is the cycle reaction that consisted of two‐step reactions, which makes it possible to produce hydrogen gas efficiently. If the solar energy can be supplied stably, we can get hydrogen energy continuously. |
| Databáze: | OpenAIRE |
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