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A07 - Solar - hydrogen energy systems for high altitude platforms - current characteristics and limits

Solar -hydrogen systems were analyzed regarding their usability as energy supply system for high altitude platforms. The main attention was directed to characteristics of current or near term available technology. Specific power weight of photovoltaics, electrolyser, fuel cell and gas tanks and their dependence on operation mode and power range were assessed. A pre-design of a solar-hydrogen energy system was carried out for an airship (volume 580,000 m³) withstanding wind speeds up to »130 km/h.

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