Computer Science
Scientific paper
Oct 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004esasp.555e..80k&link_type=abstract
Proceedings of the 4th International Spacecraft Propulsion Conference (ESA SP-555). 2-9 June, 2004, Chia Laguna (Cagliari), Sard
Computer Science
Scientific paper
To reduce the cost of space missions, the idea of an integrated power and propulsion system (IPPS) has been raised. Key point of this concept is to launch water and convert this into hydrogen and oxygen, using solar power. These propellants can be used for attitude and orbit control as well as to generate electrical power through a fuel cell. The easy handling of water will greatly reduce the launch and preparation costs and enhance flexibility in comparison with the toxic monopropellants, while the system also promises mass reductions. These mass reductions are induced by the dual use of one component for various functions, like water for propulsion, energy supply and thermal control or tanks as propellant storage and structural components. An important design driver is the required total acceleration during the mission, which impacts the total system mass. Analyses indicate that with the present technology status a large weight reduction can be realized. ABBREVIATIONS IPPS Integrated Power and Propulsion System PEM Proton Exchange Membrane LEO Lower Earth Orbit GEO Geostationary Orbit GTO Geostationary Transfer Orbit ESA European Space Agency 1.
Kwanm W.
Tuinstra B.
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