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Nuclear Option

机译:核选项

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摘要

With the capability of generating high thrust and 100% more specific impulse than the best chemical rockets, the time and cost-saving potential of nuclear thermal rockets (NTR) for deep-space missions is once again gaining interest at NASA. Although never flown, the NTR concept is relatively simple. The rocket engine is based around a nuclear fission reactor, which heats the liquid hydrogen (LH2) propellant instead of igniting combustible fuel. The idea goes back to the earliest days of the nuclear age and has been studied at various levels for more than five decades, but the potential merits of such a high-thrust propulsion system have recently become more appealing to NASA as it develops an evolvable architecture for exploring Mars and beyond.
机译:与最佳化学火箭相比,它具有产生高推力和100%比脉冲的能力,核热火箭(NTR)在深空任务中节省时间和成本的潜力再次引起了NASA的关注。尽管从未飞行过,但NTR概念相对简单。火箭发动机基于核裂变反应堆,该反应堆加热液态氢(LH2)推进剂,而不点燃可燃燃料。这个想法可以追溯到核时代的最早期,并且已经在各个层次上进行了超过五十年的研究,但是随着这种高推力推进系统的发展,其近来对NASA更具吸引力。探索火星及其他。

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