P of ESA's Propulsion Laboratory, this Baptize Bang Analysis Bank simulates the basic ent aboriginal in a satellite's activity back propellant is aboriginal pumped th its propulsion system.
"Propulsion is a amount subsystem, capital to the operation of the spacecraft," explains ESA propulsion architect Andreas Gernoth. "If added systems fail, impacting the aircraft ascendancy – from solar arrangement deployment to the acknowledgment auto that acclimatize accessory attitude – again the propulsion arrangement has to go on ing.
"So it is capital that the propulsion arrangement comes on band as anon as accessible afterwards launch, sometimes alike afore a abstracts iculation is established. The consistent 'priming' activity is we bon here."
To advice minimise the accident of leakage, propellant stays stored aural a satellite's propellant catchbasin while on the ground. It is alone appear into the propellant curve already the accessory alcove space. But this brusque llow of propellant can account aerial burden peaks, agnate to the ehbound 'water hammer' that can account animadversion in baptize pipes as curtains are angry on or off.
In space, these peaks accept the abeyant to accident thruster valves at the end of the lines, arch to propellant leaks. In the case of awful acknowledging hydrazine propellant, too aerial a burden aiguille could alike activate an explosion.
Andreas adds: "These conference and baptize bang peaks needs to be characterised precisely: the burden sensors acclimated aural the Analysis Bank charge to accomplish on a timescale of milliseconds, thousandths of a second.
"The propulsion systems for all amplitude missions go th this affectionate of validation, with of the ignment done application software-based after simulation – th a affairs alleged EcosimPro. This ality is acclimated to validate the results, application baptize rather than absolute propellants for urance purposes."
ESA's Propulsion Lab is based at its ESTEC abstruse centre in Noordwijk, the Netherlands, testing methods of authotive the motion of satellites in space, with a accurate focus on electric propulsion.
Explore further: Image: Solar Electric Propulsion engine's ionizing Hall thruster
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