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Full-Text Articles in Mechanical Engineering
Analysis Of A Solar Hybrid Sulfur Ammonia Copper Oxide Thermochemical Cycle For Hydrogen Production, Moustafa A. Soliman, Abdel Moniem Abomosalam, Noran Shedid, Mohamed Othman, Toka Hatem, Marc Samer
Analysis Of A Solar Hybrid Sulfur Ammonia Copper Oxide Thermochemical Cycle For Hydrogen Production, Moustafa A. Soliman, Abdel Moniem Abomosalam, Noran Shedid, Mohamed Othman, Toka Hatem, Marc Samer
Chemical Engineering
Solar energy conversion to hydrogen by water splitting is a promising technique because it is sustainable and environmentally friendly. One option for water splitting is through thermochemical cycles in which one of the steps is electrolytic or photocatalytic. In this paper, the economics of a thermochemical process that combines photocatalysis, photovoltaics, high temperature thermal energy and energy storage to harvest solar energy is assessed. This paper focuses on the standard hybrid sulfur ammonia thermochemical cycle (SA) in which the electrolytic step of the hydrogen production from ammonium sulfite solution is augmented by a photocatalytic step. Trying to make use of …
Kinetics Of Photolysis And Photocatalytic Oxidation Of Ammonium Sulfite For Hydrogen Production, Moustafa A. Soliman, Maryam Zakaria
Kinetics Of Photolysis And Photocatalytic Oxidation Of Ammonium Sulfite For Hydrogen Production, Moustafa A. Soliman, Maryam Zakaria
Chemical Engineering
The production of hydrogen via photocatalytic water splitting is one of the most promising technologies for obtaining chemical energy from direct solar energy while maintaining the least possible waste and pollutants. In this paper, we obtain the kinetic parameters necessary for the design of a photoreactor for photolysis and photocatalysis of ammonium sulfite solution. For the case of photolysis, we obtain the kinetics for the effect of changing the pH on the produced amount of hydrogen. For the case of photocatalysis, the intrinsic kinetic parameters of photocatalysis of water splitting reaction of ammonium sulfite and water in the presence of …