Receiver Tube

In space and astronautical engineering, a receiver tube is a component of a solar thermal propulsion system that collects and absorbs solar energy to heat a propellant. The receiver tube is typically made of a high-temperature material, such as graphite or ceramic, and is coated with a selective absorber that maximizes the absorption of solar radiation. As the propellant flows through the receiver tube, it is heated to high temperatures and then expelled through a nozzle to generate thrust. Receiver tubes are a critical component of solar thermal propulsion systems, which offer the potential for high specific impulse and low propellant mass requirements, making them attractive for long-duration space missions.
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