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- W2737112341 abstract "Many significant features lead to consider hydrogen as an interesting energy carrier. However since molecular hydrogen doesn't practically exist on the earth it has to be produced by traditional or renewable energy sources.<br> CO2 free hydrogen production can be obtained by means of water splitting promoted using solar energy. One of the most promising thermochemical cycles to efficiently produce solar hydrogen is the Sulphur-Iodine (S-I) one. This cycle involves three subsequent reactions, the decomposition of sulphuric acid to SO<sub>2</sub>, H<sub>2</sub>O and O<sub>2</sub>, the reduction of I<sub>2</sub> to HI and the oxidation of HI to H<sub>2</sub>. The first process represents one of the main basic and technical challenges to scale up to industrial level the whole cycle.<br> Hydrogen and oxygen can be recombined in situ for power generation. Since solar energy shows discontinuous availability a storage system must be considered and included between the solar water splitting section and the downstream power plant.<br> In such a way temporal de-coupling between the solar production plant and the downstream power plant can be obtained.<br> This paper reports a summary of the results of our research about the aforementioned key points in hydrogen production technologies by thermochemical cycles. Some new thermodynamic and kinetic results about the decomposition of sulphuric acid are reported together with some preliminary experimental evidences about the effect of potential catalysts. Simulations concerning thermo-fluid-dynamics aspects for solar reactors based on different approaches have been successfully conducted by Computational Fluid Dynamics (CFD) methods. About the hydrogen storage various different possibilities have been analysed and, finally, a characteristic liquid storage system is briefly discussed." @default.
- W2737112341 created "2017-07-31" @default.
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- W2737112341 date "2023-01-01" @default.
- W2737112341 modified "2023-09-23" @default.
- W2737112341 title "SOLAR H2 THERMOCHEMICAL PRODUCTION AND STORAGE SYSTEMS" @default.
- W2737112341 doi "https://doi.org/10.1615/hysydays2005.220" @default.
- W2737112341 hasPublicationYear "2023" @default.
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