Nuclear Power Concepts and Development Strategies for High-Power Electric Propulsion Missions to Mars

被引：2

作者：

Mason, Lee ^{[1
]}

Oleson, Steve ^{[2
]}

Jacobson, David ^{[2
]}

Schmitz, Paul ^{[2
]}

Qualls, Lou ^{[3
]}

Smith, Michael ^{[3
]}

Ade, Brian ^{[3
]}

Navarro, Jorge ^{[3
]}

机构：

[1] NASA Headquarters, Space Technol Mission Directorate, Washington, DC 20546 USA

[2] NASA, Glenn Res Ctr, Cleveland, OH USA

[3] Oak Ridge Natl Lab, Oak Ridge, TN USA

来源：

NUCLEAR TECHNOLOGY | 2022年 / 208卷 / sup1期

关键词：

Human Mars mission; space reactor; nuclear electric propulsion; Brayton conversion;

D O I：

10.1080/00295450.2022.2045180

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Under the Mars Transportation Assessment Study, NASA and the U.S. Department of Energy are performing analyses and generating concepts for crewed nuclear electric propulsion (NEP) missions to Mars. This paper presents the results of trade studies and concept development for the nuclear electric power system, consisting of the fission reactor, radiation shielding, power conversion, heat rejection, and power management and distribution (PMAD). The nuclear power team completed trade studies to evaluate different reactor and power conversion technologies and developed preliminary concepts for the crew shielding, waste heat radiators, and PMAD. The initial results suggest that a modified terrestrial microreactor combined with supercritical CO2 Brayton conversion could be used to perform the crew and cargo missions with satisfactory performance and modest risk. The paper includes preliminary development strategies that could bring the NEP technology to fruition for Mars missions in the late 2030s or early 2040s.

引用

页码：S52 / S66

页数：15

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