NDLI: Thermionic spacecraft design study final report

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Thermionic spacecraft design study final report

Content Provider	NASA Technical Reports Server (NTRS)
Copyright Year	1970
Description	This report presents the results of a design study of nuclear-electric propelled unmanned spacecraft. The electric power source is in-core thermionic reactors based on either the internally (flashlight) or externally fueled diode concept. The study guidelines and approach are defined. The characteristics of the candidate launch vehicles, thrust subsystem, and communications subsystem are presented. The definition of two spacecraft/powerplant configurations are presented which deliver 240 kWe net to the thruster array. This definition, presented for both the flashlight and externally fueled reactors includes the key items of spacecraft arrangement and a detailed weight breakdown. Power conditioning, heat rejection subsystem, shielding, and spacecraft structure are detailed. The results show about a 30 percent weight advantage for the spacecraft based on the externally fueled reactor. This is primarily due to a 120 vdc power output from the externally fueled reactor, as compared to a 15 vdc power output from the flashlight reactor. Weight reduction by improved technology could further reduce the weight by 5 to 15 percent.
File Size	6151440
Page Count	184
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19700024661
Archival Resource Key	ark:/13960/t76t5dr4h
Language	English
Publisher Date	1970-06-30
Access Restriction	Open
Subject Keyword	Spacecraft Propulsion And Power Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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