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首页> 外文会议>55th International Astronautical Congress 2004 vol.10 >NEMO: A MISSION TO SEARCH FOR AND RETURN TO EARTH POSSIBLE LIFE FORMS ON EUROPA
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NEMO: A MISSION TO SEARCH FOR AND RETURN TO EARTH POSSIBLE LIFE FORMS ON EUROPA

机译：NEMO：在EUROPA上寻找并返回地球可能生活形式的任务

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The Nuclear Europa Mobile Ocean (NEMO) mission would land on the surface of Europa, and deploy a small, lightweight melt probe powered by a compact nuclear reactor to melt down through the multi-kilometer ice sheet. After reaching the sub-surface ocean, a small nuclear Autonomous Underwater Vehicle (AUV) would deploy to explore the sub-ice ocean. After exploration and sample collection, the AUV would return to the probe and melt back to the lander. The lander would have replenished its H_2 propellant by electrolysis of H_2O ice, and then hop to a new site on Europa to repeat the probe/AUV process. After completing the mission, the NEMO spacecraft would return to Earth with its collected samples. The NEMO melt probe and AUV utilize enriched U-235 fuel and conventional water reactor technology. The lander utilizes a compact nuclear thermal propulsion (NTP) engine based on the 710 tungsten/UO_2 cermet fuel and high temperature H2 propellant. The compact nuclear reactors in both the NEMO melt probe and AUV drive a steam power cycle, generating over 10kW(e) for use in each. Each nuclear reactor's operating lifetime is several years. With its high mobility and long mission duration, NEMO provides an ideal platform for life detection experiments.
机译：欧罗巴移动海洋核（NEMO）任务将降落在欧罗巴的表面，并部署由小型核反应堆提供动力的小型轻质融化探针，以融化穿过多公里冰盖的融化。到达水下海洋后，将部署小型核自主水下航行器（AUV）来探索水下冰洋。在探查和收集样品后，AUV将返回探头并融化回到着陆器。着陆器本来可以通过电解H_2O冰来补充其H_2推进剂，然后跳到木卫二上的新地点重复探测/ AUV过程。完成任务后，NEMO航天器将带着收集的样本返回地球。 NEMO熔体探头和AUV利用丰富的U-235燃料和常规水反应堆技术。着陆器使用基于710钨/ UO_2金属陶瓷燃料和高温H2推进剂的紧凑型核热推进（NTP）发动机。 NEMO熔体探测器和AUV中的紧凑型核反应堆可驱动蒸汽动力循环，每次产生的功率均超过10kW（e）。每个核反应堆的使用寿命为数年。 NEMO具有高机动性和较长的任务持续时间，为生命检测实验提供了理想的平台。

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