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Sunday, May 17, 2020 | History

4 edition of Space station cathode design, performance, and operating specifications found in the catalog.

Space station cathode design, performance, and operating specifications

Space station cathode design, performance, and operating specifications

  • 174 Want to read
  • 19 Currently reading

Published by National Aeronautics and Space Administration, Lewis Research Center, National Technical Information Service, distributor in [Cleveland, Ohio], Springfield, VA .
Written in English

    Subjects:
  • Cathodes,
  • Spacecraft design,
  • Ion engines,
  • Functional design specifications,
  • Electric propulsion,
  • Design analysis

  • Edition Notes

    StatementMichael J. Patterson ... [et al.].
    SeriesIEPC -- 97-170., NASA/TM -- 1998-206529., NASA technical memorandum -- 206529.
    ContributionsPatterson, Michael J., Lewis Research Center.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL17838702M
    OCLC/WorldCa41212555

    Each item designed for the International Space Station was procured to specifications written from requirements documents, like the glass structural design requirements in SSP (NASA ), the general structural design requirements in SSP (NASA a), and the crewed systems integration requirements in SSP (NASA ). the STS mission include operating the space station robotic arm, operating the hand-held LIDAR and the rendezvous situational awareness tools during docking and undocking with the station, and managing the. plan that transforms Discovery from a launch vehicle to an orbiting vehicle to an entry vehicle.

    When you first consider your fuel cell stack design, you will need to calculate the following: • Stack size • Number of cells (MEAs / CCMs)• Stack configuration (flow field plates, GDL, etc.)This post presents an overview of the initial considerations for fuel cell design in room-temperature fuel cells. A new model of laboratory design is emerging, one that creates lab environments that are responsive to present needs and capable of accommodating future demands. Several key needs are driving the development of this model: The need to create " social buildings " .

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Space station cathode design, performance, and operating specifications Download PDF EPUB FB2

Space Station Cathode Design, Performance, and Operating Specifications Michael J. Patterson Lewis Research Center, Cleveland, Ohio Timothy R. Verhey, George Soulas, and James Zakany NYMA, Inc., Brook Park, Ohio Prepared for the 25th International Electric Propulsion Conference sponsored by the Electric Rocket Space station cathode design Society.

Get this from a library. Space station cathode design, performance, and operating specifications. [Michael J Patterson; Lewis Research Center.;]. The International Space Station (ISS) is a permanently crewed on-orbit laboratory that enables scientific research supporting innovation on Earth and future deep space exploration.

From design to launch, 15 countries collaborated to assemble the world's only permanently crewed orbital facility, which can house a crew of six and ongoing.

Four hollow cathode assembly (HCA) life tests were initiated at operating conditions simulating on-orbit operation of the International Space Station plasma contactor. The objective of these tests is to demonstrate the mission-requi hour lifetime with. Fundamentals of Electric Propulsion: Ion and Hall Thrusters March The research described in this publication was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration.

Reference herein to any specific commercial product, process, or service. Abstract. The set of materials performance with the space flight environment that have produced the largest impacts on the verification and acceptance of flight hardware and on flight operations of the International Space Station (ISS) Program during the May to Cited by: 3.

Laser-induced fluorescence characterization of ions emitted from hollow cathodes Article (PDF Available) in IEEE Transactions on Plasma Science 28(5) - November with 56 Reads. This paper presents a design and operational overview of the Space Station Freedom external thermal control system.

The system utilizes two-phase ammonia for its operation. The paper discusses the three-loop design architecture for the overall Cited by: 7. the cathode plasma determine, to a large extent, the performance and life of both ion and Hall thrusters. Introduction Early electron-bombardment ion thrusters developed in the s utilized directly heated tungsten filaments as the cathode that produced electrons for the plasma discharge.

INTERNATIONAL SPACE STATION SPECIFICATIONS (Figures at Assembly Complete) Principal uses: civilian space station Cost: preliminary design () $ billion; station-related design/development $ billion; development $ billion; NASA estimate for assembly complete $ billion; operations () $ billion Orbit: varies km, o.

There have been tremendous advances in the materials, knowledge, design, and construction of cathodes; however, widelydivergent cell operations and operating conditions present a challenge for selecting the right materials and lining design for good cell life. Cathode wear is frequently becoming the life-determining step, and, although there are questions still to be answered, it is Cited by: design for water cooling a large linear amplifier, a subject overlooked by most other publications.

RF Design Basics neatly fills the gap between a beginner's 'introduction to radio' and RF design text books. Written for the average radio amateur, this book is an accessible and useful reference work for everyone interested in RF design.

Space Station Requirements for Materials and Processes shall be implemented on all new Space Station contractual and internal activities and shall be included in any existing contracts through contract changes.

This document is under the control of the Space Station Control Board, and any changes or revisions will be approved by the Program. the Figure6. It is known that the magnetic field leads to cathode spot motion in the azimuthal direction, well-known as 4J B which causing uniform erosion of the cathode material.

One can see that at T magnetic field strength, the cathode spot rotation speed is about 20 m/s. But, in contrast to the lower magnetic field strength, cathode File Size: KB. Practical Applications of a Space Station is a formal report of the study, in which six panels met, one in each of the following areas: earth's resources, earth's environment, ocean operations, satellite communications, materials science and engineering, and system design factors.

Each panel was asked to consider what practical applications of. A nickel–hydrogen battery (NiH 2 or Ni–H 2) is a rechargeable electrochemical power source based on nickel and hydrogen. It differs from a nickel–metal hydride (NiMH) battery by the use of hydrogen in gaseous form, stored in a pressurized cell at up to psi ( bar) pressure.

The Nickel–hydrogen battery was patented on Febru by Alexandr Ilich Kloss and Boris Energy density: ~60 Wh/L. Fuel Cell Handbook (Seventh Edition) By EG&G Technical Services, Inc.

Under Contract No. DE-AMFT U.S. Department of Energy Office of Fossil Energy National Energy Technology Laboratory P.O. Box Morgantown, West Virginia November Hollow cathodes are electron sources used for the gas ionization and the beam neutralization in both ion and Hall effect thrusters (HETs).

A reduction of power and propellant consumption from the cathode is particularly needed in small satellite applications, where power and mass budgets are inherently limited. Concurrently, the interest in high-power HETs is increasingly fostered for a number Cited by: 8.

precautions for best instrument performance and longest service life. Avoid placing this instrument in an extremely hot or cold place. Specifically, don’t leave this instrument in a close car, exposed to sunlight in midsummer, or next to a space heater.

Don’t use this instrument immediately after bringing it. Effectively, you are an assistant on steroids, and need not fear any electrical things with your gloves. You can, however, affect the station, for good or for ill, much more profoundly than a mere assistant can. For example, badass engineers can break into the teleporter room quickly to kill a malevolent for the love of Nar-Sie, don't run off with the damn space suits before the.

Yonder Atmosia. The city of pipes and air, a peaceful place often left to its automatic work. Yet, some people do come here for other reasons, like to dump bodies, charge a bomb's O2 tank, plant a power sink, get O2 for jet packs, steal CO2 canisters to manually flood the station, bunker down in a revolution, start a cult, build a computer forest, flood the station with harmful gasses or set.Urine pretreatment in use aboard the International Space Station (ISS) is based upon the strong oxidant, hexavalent chromium, and operates at a pH.Theoretical Space Station Design junfanbl (Marine/Ocean) (OP) 18 May 16 Hello, I am hoping to get some feedback from the engineering community on some design ideas.

I am putting together some theoretical designs for a futuristic space station. The design isn't for engineering purposes (obviously), but it is to showcase the station in a.