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Feasibility of a single port Hybrid Propulsion system for a Mars Ascent Vehicle

机译:单口混合动力推进系统在火星上升器上的可行性

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Developments in hybrid propellants over the last decade make the hybrid motor a viable candidate and possibly an enabling technology for a Mars Ascent Vehicle (MAV) as part of a Mars Sample Return (MSR) campaign. Fast regression rate fuels such as paraffin allow for single port hybrid designs that overcome the disadvantages associated with classical hybrid fuels. Additionally, paraffin has a both a weak and low glass transition temperature, making it an ideal candidate for a Mars application. Nytrox, a high performance oxidizer made of a mixture of nitrous oxide and oxygen, can be chosen to match the temperatures on Mars. The hybrid MAV can survive the harsh Martian environment with minimal or no thermal conditioning and it can meet the design challenges posed by coordinating with the other aspects of MSR.
机译:过去十年来,混合动力推进剂的发展使混合动力发动机成为火星上升飞行器(MAV)可行的候选技术,并且有可能成为火星样本返回(MSR)活动的一部分而成为使能技术。快速回归速率的燃料(例如石蜡)允许进行单端口混合动力设计,从而克服了传统混合动力燃料的缺点。此外,石蜡的玻璃化转变温度低而又低,这使其成为火星应用的理想选择。可以选择Nytrox(一种由一氧化二氮和氧气的混合物制成的高性能氧化剂)来匹配火星上的温度。混合式MAV可以在极少或没有热调节的情况下在火星环境中生存,并且可以与MSR的其他方面配合来应对设计挑战。

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