LARGE SOLAR ARRAY DEVELOPMENT IN U. K
ROYAL AIRCRAFT ESTABLISHMENT FARNBOROUGH (UNITED KINGDOM)
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Aspects of large solar array technology are reviewed, with particular reference to the development of an experimental 560 W deployable array, which has some novel features. The array consists of very thin silicon solar cells mounted on Kapton polyimide film. It is stowed by folding the Kapton concertina fashion into rectangular compartments and deployed by pneumatically-actuated telescopic masts. Deployment is initiated by duplicated pyrotechnic actuators and takes about two minutes to complete. The estimated all-up weight of the 78 sq ft array, including stowage compartments, cushioning and deployment mechanism is 25.2 lb, giving a power-weight ratio of 22.3 Wlb at 55C. The main problem areas are discussed in some detail, with an indication of the progress made to date.
- Electric Power Production and Distribution