Last edited by Magis
Tuesday, July 21, 2020 | History

3 edition of Lunar and Martian environmental interactions with nuclear power system radiators found in the catalog.

Lunar and Martian environmental interactions with nuclear power system radiators

Lunar and Martian environmental interactions with nuclear power system radiators

  • 340 Want to read
  • 24 Currently reading

Published by National Aeronautics and Space Administration, For sale by the National Technical Information Service in [Washington, DC, Springfield, Va .
Written in English

    Subjects:
  • Moon -- Exploration.,
  • Mars (Planet) -- Exploration.

  • Edition Notes

    StatementMarla E. Perez-Davis and James R. Gaier and Cynthia M. Katzan.
    SeriesNASA technical memorandum -- 105747.
    ContributionsGaier, James R., Katzan, Cynthia M., United States. National Aeronautics and Space Administration.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL14665239M

    Optimization of many Lunar, Martian, and spacecraft nuclear power systems require a radiator that dissipates at least a portion of the waste heat in the K to K temperature range, for which there is no current loop heat pipe (LHP) radiator design. Exploration of the outer solar system is the area where nuclear power systems have their greatest potential but, ironically, the lack of maturity of NEP or hybrid systems, combined with the current emphasis on lunar and martian exploration, may cause such long delays that an effective program cannot be sustained.

    Nuclear Reactors and Radioisotopes for Space (Updated July ) Radioisotope power sources have been an important source of energy in space since Nuclear fission reactors for space have been used mainly by Russia, but new and more powerful designs are under development in . Other sources of radiation relevant to Project Constellation include astronautsâ short trips through Earthâ s trapped radiation belts, radiation generated by lunar- and martian-surface nuclear power systems, and eventu- ally, perhaps, radiation generated by a spacecraftâ s nuclear propulsion and power system.

    Deployment history and design considerations for space reactor power systems. Author links open overlay increases the size and mass of the radiator and the power system Disposable options should adequately address environmental and safety concerns associated with landing and operating nuclear reactors on the lunar and Martian surfaces. Cited by:   Power Conversion Systems. A nuclear reactor doesn’t produce electricity directly. In most cases, what it does produce is heat (caused by the collision of the fission fragments and neutrons as they slow down inside the fuel element, or by hitting reactor components), which then has to be converted into electricity.


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Lunar and Martian environmental interactions with nuclear power system radiators Download PDF EPUB FB2

Get this from a library. Lunar and Martian environmental interactions with nuclear power system radiators. [Marla E Perez-Davis; James R Gaier; Cynthia M Katzan; United States. National Aeronautics and Space Administration.]. Lunar and Martian environmental interactions with nuclear power system radiators How we measure 'reads' A 'read' is counted each time someone views a publication summary.

Future NASA space missions include a permanent manned presence on the moon and an expedition to the planet Mars. Such steps will require careful consideration of environmental interactions in the selection and design of required power systems. Several environmental constituents may be hazardous to performance by: 1.

The surface of Mars provides the additional challenges of dust storms, winds, and a carbon dioxide atmosphere. In this review, the anticipated environmental interactions with surface power system radiators are described, as well as the impacts of these interactions on radiator durability, which were identified at NASA Lewis Research Center.

In addition, the Martian environment has the winds, dust storms, and a carbon dioxide atmosphere. In this paper, the expected environmental interactions with surface power system radiators. In the foreseeable future, NASA space milestones include a permanent manned presence on the Moon and an expedition to the planet Mars.

Such steps will require careful consideration of environmental interactions in the selection and design of required power systems. Several environmental constituents may be hazardous to performance integrity.

Perez-Davis, Marla E., Gaier, James R., and Katzan, Cynthia M., “Lunar and Martian Environmental Interactions With Nuclear Power System Radiators,” NASA TM, Prepared by the Nuclear Technologies Space Exploration, sponsored by the American Nuclear Society, Jackson Hole, Wyoming, August The chemical effects of the Martian environment on power system component materials: A theoretical approach Lunar and Martian environmental interactions with nuclear power system radiators.

The Martian Surface Reactor was comprised of four main systems: the core, power conversion system, radiator and shielding. The core produces MW[subscript th] and operates in a fast spectrum. Li heat pipes cool the core and couple to the power conversion system.

high reliability. The Martian Surface Reactor was comprised of four main systems: the core, power conversion system, radiator and shielding. The core produces MWth and operates in a fast spectrum.

Li heat pipes cool the core and couple to the power conversion system. The heat pipes compliment the chosen pin. The newly designed lunar nuclear power reactor (LNPR) is suggested for the commercial purpose.

The system dynamics (SD) is used for the simulation of the safety assessment. The cyclic variation of the lunar surface temperature can affect to the physical situation of the Author: Taeho Woo.

Lunar and Martian Environmental Interactions With Nuclear Power System Radiators In the foreseeable future, NASA space milestones include a permanent manned presence on the Moon and an expedition to the planet Mars.

Such steps will require careful consideration of environmental interactions in the selection and design of required power systems. The experimental VCHP as fabricated is shown in Figure 1a.

This VCHP is a full scale representation of the design developed for a lunar power system (Anderson, Ellis, and Walker, ), with a Lunar and Martian environmental interactions with nuclear power system radiators Conference Perez-Davis, M E ; Gaier, J R ; Katzan, C M In the foreseeable future, NASA space milestones include a permanent manned presence on the Moon and an expedition to the planet Mars.

In the foreseeable future, an expedition may be undertaken to explore the planet Mars. Some of the power source options being considered for such a mission are photovoltaics, regenerative fuel cells and nuclear reactors.

In addition to electrical power requirements, environmental conditions en route. The Martian Surface Reactor was comprised of four main systems: the core, power conversion system, radiator and shielding.

The core produces MW[subscript th] and operates in a fast spectrum. The radiator assembly, including the panel support structure, weighs kg. See Figure 11 for a schematic layout of the Brayton core and radiator system, and Table 7 for a summary of the radiator parameters.

Table 7: Design parameters for the SP based lunar radiator utilizing Brayton cycle power conversion. Martian and Lunar Colonies To Be Powered By Nuclear Energy I write about nuclear, energy and the environment.

This article is more than 2 years old. The power system. Interaction of dust and plasma on the surface of the Moon and in the exosphere - One only needs to select a location on the Martian surface, fold in the actual spacecraft/rover/habitat measurements of the lunar radiation environment provided by the LRO/CRaTER originally scheduled for.

Terrestrial nuclear power plants typically maintain their temperature through convective cooling, such as water and forced air. However, the space environment is a vacuum environment, typically 10 −8 Torr pressure, therefore in proposed missions to the lunar surface, power plants would have to rely on radiative cooling to remove waste heat.

Also, the Martian surface has a very tenuous Author: Jason Vaughn, Todd Schneider. The Civil Space Technology Initiative High-Capacity-Power Environmental Interactions Program has made great progress in defining and evaluating the interactions of the SP power system with its expected ambient environments.

The NASCAP/LEO and POLAR computer codes demonstrated that local electric fields at the user interface module are high.Radiator Pumps (4) Radiator Drive Motors (4) Cavity Radiators (2) Main Radiator Wings (2) Radiator Support Truss Fig.

1. Reference lunar power system in stowed configuration. The primary shield between the reactor and the lunar outpost will be a combination of regolith and distance.

Shielding will be required also between the reactor andFile Size: 1MB.Lunar Surface - Conditions LUNAR AND MARTIAN ENVIRONMENTAL INTERACTIONS WITH NUCLEAR POWER SYSTEM RADIATORS Maria E. Perez-Davis and James R. Gaier NASA Lewis Research Center, Cleveland, OH Cynthia M.

Katzan Sverdrup Technology, Inc., Lewis Research Center Group 48 Lunar Sub-Surface (Regolith) Lunar sub-surface (Regolith) Thermal shield.