Environmental impact of propulsion systems and green alternatives

Maggi, F.; Carlotti, Stefania; Kappenstein, Charles

doi:10.1016/b978-0-323-95654-3.00006-7

Cited by 3 publications

(2 citation statements)

References 68 publications

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“…Innovations in satellite design and propulsion systems, such as electric propulsion and solar power, offer opportunities to reduce energy consumption and emissions. Furthermore, implementing sustainable practices in satellite manufacturing, launch operations, and end-of-life disposal can minimize environmental harm and promote responsible stewardship of space resources (Mazouffre, 2016;Maggi, et al, 2023). Despite the ubiquity of satellite telecommunications, the digital divide persists, with millions of people around the world lacking access to reliable internet connectivity and essential communication services.…”

Section: Traditional Challenges In Satellite Telecommunicationsmentioning

confidence: 99%

Sustainable Business Models in Satellite Telecommunications

Nneka Adaobi Ochuba,

David Olanrewaju Olutimehin,

Olusegun Gbenga Odunaiya

et al. 2024

Eng. sci. technol. j.

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Sustainable business models in satellite telecommunications represent a critical paradigm shift in the industry, integrating environmental, social, and economic dimensions into operations. This review explores the evolving landscape of sustainable practices within satellite telecommunications, addressing the pressing need for eco-conscious strategies in an era of accelerating technological advancement. The burgeoning demand for satellite telecommunications services, driven by global connectivity needs, underscores the significance of sustainability in the industry. Traditional business models have often prioritized profit margins over environmental and social impacts. However, emerging trends emphasize the adoption of sustainable practices to mitigate carbon footprints, reduce electronic waste, and promote equitable access to communication services. Innovations in satellite technology, such as the development of small satellites and advancements in propulsion systems, offer opportunities to enhance sustainability. Miniaturization of satellites decreases launch mass, leading to reduced fuel consumption and lower emissions. Additionally, advancements in electric propulsion systems contribute to fuel efficiency and prolong satellite lifespan, thereby reducing space debris. Furthermore, sustainable business models in satellite telecommunications encompass social responsibility initiatives aimed at bridging the digital divide. Collaborative efforts between satellite operators, governments, and non-profit organizations facilitate the provision of affordable and accessible connectivity to underserved regions, fostering socio-economic development and empowering marginalized communities. The integration of sustainability into satellite telecommunications business models not only aligns with environmental and social imperatives but also presents economic benefits. Cost efficiencies realized through fuel savings, extended satellite lifespan, and market expansion in underserved regions enhance long-term profitability and resilience in a competitive industry landscape. The transition towards sustainable business models in satellite telecommunications represents a pivotal evolution towards a more responsible and inclusive industry, balancing profitability with environmental stewardship and social equity. Keywords: Business, Models, Satellite, Telecommunication, Sustainable, Review.

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Section: Traditional Challenges In Satellite Telecommunicationsmentioning

confidence: 99%

Sustainable Business Models in Satellite Telecommunications

Nneka Adaobi Ochuba,

David Olanrewaju Olutimehin,

Olusegun Gbenga Odunaiya

et al. 2024

Eng. sci. technol. j.

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“…Several liquid propellants have been reviewed in the open literature to assess their health and environmental hazards, handling and safety requirements, and the resulting performances to evaluate their suitability for conventional storable bipropellant replacements [8][9][10][11][12][13]. Among the potential oxidizers, much interest has arisen around highconcentration aqueous solutions of hydrogen peroxide, also known as High Test Peroxide (HTP).…”

Section: Introductionmentioning

confidence: 99%

Monoethanolamine-Based Fuels Hypergolic with Rocket-Grade Hydrogen Peroxide

Caffiero,

Carlotti,

Maggi

2024

Aerospace

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The object of this work is to study the ignition performances of promising catalytically promoted amino-based green fuels to be used in combination with rocket-grade hydrogen peroxide. The main hypergolic parameter, the ignition delay time, was experimentally determined with an automated drop test setup. Additionally, the kinematic viscosity was experimentally measured, while the CEA2 software was used to determine the ideal rocket performances of the propellants. Three inorganic copper salts were selected as catalysts to be used in combination with monoethanolamine in concentrations ranging from 0.5 wt% to 20 wt%. Then, N,N-dimethylethylenediamine was introduced as part of a blend with monoethanolamine to target the high viscosity and low gravimetric specific impulse of the fuel for the pure monoethanolamine case. Due to the reduced monoethanolamine and low additive content, some formulations were observed to be characterized by gravimetric specific impulse higher than 320 s, and kinematic viscosity lower than 5 cSt while retaining ignition delay times shorter than 30 ms with 98 wt% HTP. Finally, the addition of ethanol to the blend was preliminarily investigated to improve the additive solubility. The effects on the ignition delay time were found to depend on the concentration ratio of the two amines.

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