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Aerospace and Electronic Systems Magazine, IEEE

Issue 12 • Date Dec. 1993

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Displaying Results 1 - 7 of 7
  • Recent developments of electric vehicles and their propulsion systems

    Publication Year: 1993 , Page(s): 3 - 6
    Cited by:  Papers (13)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (400 KB)  

    Major recent electric vehicle (EV) programs in North America, Europe, and Japan are reviewed. The developments discussed include electric vehicles for fleet operation and electric passenger cars for urban transit. All major auto makers have had their own concept electric vehicle programs, targeted at commercial production in the late 1990s. It Is noted that, with different objectives for various e... View full abstract»

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  • Satellite inclination effects on UHF Satcom operation

    Publication Year: 1993 , Page(s): 7 - 13
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (623 KB)  

    The cause, magnitude, and time variance of satellite inclination are examined in light of the effects on military UHF SATCOM operation. The effects on required demodulator acquisition range, earth coverage footprint, and user terminal antenna pointing accuracy are considered. It is shown that the allowable satellite inclination to maximize on-orbit lifetime is not based on earth-terminal antenna p... View full abstract»

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  • Status of the Air Force nickel hydrogen low earth orbit life test

    Publication Year: 1993 , Page(s): 14 - 17
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (317 KB)  

    The US Air Force NiH/sub 2/ LEO (low earth orbit) life test consists of 200 cells undergoing real-time LEO cycling, pulse discharge testing, and storage testing. To date, three of the program's four objectives have been met: NiH/sub 2/ performance in LEO applications has been demonstrated. A significant number of cells have completed more than 20,000 cycles at 40% DOD. A database for cells of both... View full abstract»

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  • High efficiency dynamic radioisotope power systems for space exploration-a status report

    Publication Year: 1993 , Page(s): 18 - 23
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (487 KB)  

    Background on the space exploration program is discussed, and the currently identified NASA exploration missions are contrasted with the missions that were being planned a year ago. Developments in high-efficiency dynamic radioisotope power systems are discussed: and Brayton and Stirling power conversion cycles are compared for the missions planned for the next decade. Issues related to the use of... View full abstract»

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  • Parametric cost model for solar space power and DIPS systems

    Publication Year: 1993 , Page(s): 24 - 29
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (407 KB)  

    A detailed cost model has been developed to parametrically determine the program development and production cost of photovoltaic, solar dynamic, and dynamic isotope (DIPS) space power systems. The model is applicable in the net electrical power range of 3 to 300 kWe for solar power and 0.5 to 10 kWe for DIPS. Application of the cost model allows spacecraft or space-based power system architecture ... View full abstract»

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  • First Mars outpost power systems

    Publication Year: 1993 , Page(s): 30 - 34
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (452 KB)  

    Research into potential power systems for the First Mars Outpost (FMO) was performed. The author examined a representative mission architecture which was developed by NASA to determine power system requirements. Power system options including nuclear, isotope, photovoltaic (PV), chemical heat engine, and regenerative fuel cell (RFC) concepts were identified for potential Mars surface applications.... View full abstract»

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  • Radioisotope AMTEC power system designs for spacecraft applications

    Publication Year: 1993 , Page(s): 35 - 39
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (455 KB)  

    The authors describe and compare small (two-module) and larger (16-module) AMTEC (alkali metal thermal-to-electric converter) radioisotope powered systems and describe the computer model developed to predict their performance. The high efficiency and static conversion process combined with minimized parasitic losses and operating temperatures that allow the use of current materials while still mai... View full abstract»

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The IEEE Aerospace and Electronic Systems Magazine publishes articles and tutorials concerned with the various aspects of systems for space, air, ocean, or ground environments.

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Teresa Pace, PhD EE
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