期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 46, 期 66, 页码 33053-33067出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2021.07.101
关键词
Solar energy; Oxygen generator; Ventilator; Fuel cell; Electrolyser; COVID-19 patients
A new solar-based fuel cell-powered oxygenation and ventilation system for COVID-19 patients is presented in this study. Solar energy is utilized to operate the system, with water splitting method used to generate oxygen and hydrogen as fuel. Daily oxygen and hydrogen production varies throughout the year, with maximum efficiencies of the system found to be 14.3% energetically and 13.4% exergetically.
In this study, a new solar-based fuel cell-powered oxygenation and ventilation system is presented for COVID-19 patients. Solar energy is utilized to operate the developed system through photovoltaic panels. The method of water splitting is utilized to generate the required oxygen through the operation of a proton exchange membrane water electrolyser. Moreover, the hydrogen produced during water splitting is utilized as fuel to operate the fuel cell system during low solar availability or the absence of solar irradiation. Transient simulations and thermodynamic analyses of the developed system are performed by accounting for the changes in solar radiation intensities during the year. The daily oxygen generation is found to vary between 170.4 kg/day and 614.2 kg/day during the year. Furthermore, the amount of daily hydrogen production varies between 21.3 kg/day and 76.8 kg/day. The peak oxygen generation rate attains a value of 18.6 g/s. Moreover, the water electrolysis subsystem entails daily exergy destruction in the range of 139.9 - 529.7 kWh. The maximum efficiencies of the developed system are found to be 14.3% energetically and 13.4% exergetically. (C) 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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