High Power Electric Propulsion for Space Exploration

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Presentation transcript:

High Power Electric Propulsion for Space Exploration Tommaso Misuri Head of Propulsion Division, SITAEL Workshop on “Commercialisation and Utilisation of Space Exploration Technologies” Turin, 15-16 March 2018

Electric Propulsion, WHY ? Electric Thrusters work by ionizing and accelerating a propellant by means of electromagnetic forces. The energy imparted to the propellant is not obtained through a combustion process and a much higher exhaust velocity (specific impulse) can be attained. Electric Thrusters work by ionizing and accelerating a propellant by means of electromagnetic forces. The energy imparted to the propellant is not obtained through a combustion process and a much higher exhaust velocity (specific impulse) can be attained. Electric Propulsion, WHY ? Potential Benefits: Electric Propulsion is an enabling technology for space exploration and exploitation (NEO missions, Cislunar SS, ISRU, Moon Base, etc…) Main Challenges: Power Generation Thruster Clustering Propellant Choice Destination: NEO Starting from: LEO Mission DV (one way): 7.5 km/s S/C initial mass: 10 t Propellant mass: - Chemical Propulsion (Isp 300)  9.2 t - Electric Propulsion (Isp 3000)  2.2 t  + 7 tons of payload Development Status and Way Forward: SITAEL is now in the process of extensively testing a 20kW Hall Effect thruster using Xe and Kr as propellant. Future developments: Raise the power bar Study alternative propellants for In-situ refuelling Workshop on “Commercialisation and Utilisation of Space Exploration Technologies” Turin, 15-16 March 2018