https://www.diva-portal.org/smash/record.jsf?pid=diva2%3A1900953&dswid=-8192
*Author* Wilk, Lisa *25 September 2024* *Abstract* The global surface temperature has been steadily increasing over the last 50 years, reaching an all-time high in 2023. One proposed strategy to mitigate global warming is geoengineering, specifically by placing a sunshade in the vicinity of Lagrange Point One L1, in the Sun-Earth system. This sunshade system would block part of the sunlight that reaches Earth, thereby lowering the surface temperature. A viable transportation method for the sunshade system to L1 is solar sailing, or solar propulsion, which uses light to propel the spacecraft forward. In this thesis, a proposed solar sailing precursor spacecraft is developed to demonstrate the feasibility of this approach and validate the used technology. The design focuses on the solar sail, the booms and the attitude control system. The selected systems are scalable and currently available, eliminating the need for new technology development. The precursor spacecraft will be a 12U CubeSat equipped with a 144 m² solar sail. The sail membrane will be made out of Clear Polymer 1 (CP1), and coated on both sides with vaporized aluminium to achieve high reflectivity. The sail will be supported by four 8.5 m long Collapsible Tubular Mast (CTM) booms made from Carbon Fiber Reinforced Polymer (CFRP). Momentum management will be performed using an Active Mass Translator (AMT), and Reflectivity Control Devices (RCD). The precursor spacecraft will be launched into geostationary orbit and spend approximately 1500 days solar sailing to the vicinity of L1. The estimated cost to realize this mission is around 5.5 M US$. *Source: DiVA* -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/geoengineering/CAHJsh99H49%3DW%2BN2%3DYeqiEQLKDBHRPCzkBgTQRMEnFgPewaVK5g%40mail.gmail.com.
