What fuel-efficient propulsion technology is equipped on the Tianhe core module to sustain the station's lifespan?
Answer
Hall-effect thrusters
The Tianhe core module is equipped with four Hall-effect thrusters, which are a type of ion thruster known for their exceptional fuel efficiency. This design choice is crucial because it can potentially cut propellant needs by up to 90% compared to older propulsion systems. This conservation of fuel is specifically intended to help sustain the planned 15-year operational lifespan of the Tiangong space station. While traditional chemical engines handle major maneuvers, the Hall-effect thrusters provide efficient station-keeping and adjustments.
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