Energy harvesting and power network architectures for the multibody advanced airship for transport high altitude cruiser-feeder airship concept
Abstract
This article presents results of preliminary investigations in the development of a new class of airship. Specific focus is given to photo-electric harvesting as a primary energy source, power architectures and energy audits for life support, propulsion and ancillary loads to support the continuous daily operation of the primary airship (cruiser) at stratospheric altitudes (similar to 15 km). The results are being used to drive the requirements of the FP7 multibody advanced airship for transport programme, which is to globally transport both passengers and freight using a 'feeder-cruiser' concept. It is shown that there is a potential trade off to traditional cost and size limits and, although potentially very complex, a first-order approximation is used to demonstrate sensitivities to the economics of the lifting gas. This presented concept is substantially different to those of conventional aircraft due to the airship size and the inherent requirement to harvest and store sufficient energy during 'daylight' operation to guarantee safe operation during 'dark hours'. This is particularly apparent when the sizing of the proposed electrolyser is considered, as its size and mass increases nonlinearly with decreasing daylight duty. The study also considers the integration of photovoltaics with various electrical architectures, in safety critical environments. A mass audit is also included that shows that if the electrolyser was omitted in such systems, the overall impact will be small compared to structural and propulsion masses. It should be noted that although the technology bias is application specific, the underlying principles are much widely applicable to other energy harvesting and power management sectors.Citation
Energy harvesting and power network architectures for the multibody advanced airship for transport high altitude cruiser-feeder airship concept 2013, 227 (4):586 Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace EngineeringPublisher
Institution of Mechanical EngineersJournal
Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace EngineeringDOI
10.1177/0954410012469319Additional Links
http://pig.sagepub.com/lookup/doi/10.1177/0954410012469319Type
ArticleLanguage
enISSN
0954-41002041-3025
ae974a485f413a2113503eed53cd6c53
10.1177/0954410012469319
Scopus Count
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