Feasibility Study Of Jupiter Icy Moons Orbiter Permanent Magnet Alternator Start Sequence

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Feasibility Study of Jupiter Icy Moons Orbiter Permanent Magnet Alternator Start Sequence

Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781721820580
Total Pages : 24 pages
Book Rating : 4.8/5 (25 download)

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Book Synopsis Feasibility Study of Jupiter Icy Moons Orbiter Permanent Magnet Alternator Start Sequence by : National Aeronautics and Space Administration (NASA)

Download or read book Feasibility Study of Jupiter Icy Moons Orbiter Permanent Magnet Alternator Start Sequence written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-24 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Jupiter Icy Moons Orbiter (JIMO) mission was a proposed, (recently cancelled) long duration science mission to study three moons of Jupiter: Callisto, Ganymede, and Europa. One design of the JIMO spacecraft used a nuclear heat source in conjunction with a Brayton rotating machine to generate electrical power for the electric thrusters and the spacecraft bus. The basic operation of the closed cycle Brayton system was as follows. The working fluid, a heliumxenon gas mixture, first entered a compressor, then went through a recuperator and hot-side heat exchanger, then expanded across a turbine that drove an alternator, then entered the cold-side of the recuperator and heat exchanger and finally returned to the compressor. The spacecraft was to be launched with the Brayton system off-line and the nuclear reactor shut down. Once the system was started, the helium-xenon gas would be circulated into the heat exchangers as the nuclear reactors were activated. Initially, the alternator unit would operate as a motor so as to drive the turbine and compressor to get the cycle started. This report investigated the feasibility of the start up sequence of a permanent magnet (PM) machine, similar in operation to the alternator unit, without any position or speed feedback sensors ("sensorless") and with a variable load torque. It is found that the permanent magnet machine can start with sensorless control and a load torque of up to 30 percent of the rated value. Kenny, Barbara H. and Tokars, Roger P. Glenn Research Center NASA/TM-2005-214034, E-15391

Facing the Heat Barrier

Author : T.A. Heppenheimer
Publisher : Courier Dover Publications
ISBN 13 : 0486834514
Total Pages : 355 pages
Book Rating : 4.4/5 (868 download)

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Book Synopsis Facing the Heat Barrier by : T.A. Heppenheimer

Download or read book Facing the Heat Barrier written by T.A. Heppenheimer and published by Courier Dover Publications. This book was released on 2018-09-12 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume from The NASA History Series presents an overview of the science of hypersonics, the study of flight at speeds at which the physics of flows is dominated by aerodynamic heating. The survey begins during the years immediately following World War II, with the first steps in hypersonic research: the development of missile nose cones and the X-15; the earliest concepts of hypersonic propulsion; and the origin of the scramjet engine. Next, it addresses the re-entry problem, which came to the forefront during the mid-1950s, showing how work in this area supported the manned space program and contributed to the development of the orbital shuttle. Subsequent chapters explore the fading of scramjet studies and the rise of the National Aerospace Plane (NASP) program of 1985–95, which sought to lay groundwork for single-stage vehicles. The program's ultimate shortcomings — in terms of aerodynamics, propulsion, and materials — are discussed, and the book concludes with a look at hypersonics in the post-NASP era, including the development of the X-33 and X-34 launch vehicles, further uses for scramjets, and advances in fluid mechanics. Clearly, ongoing research in hypersonics has yet to reach its full potential, and readers with an interest in aeronautics and astronautics will find this book a fascinating exploration of the field's history and future.

Mars

Author : Viorel Badescu
Publisher : Springer Science & Business Media
ISBN 13 : 3642036295
Total Pages : 716 pages
Book Rating : 4.6/5 (42 download)

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Book Synopsis Mars by : Viorel Badescu

Download or read book Mars written by Viorel Badescu and published by Springer Science & Business Media. This book was released on 2009-12-07 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt: th th Mars, the Red Planet, fourth planet from the Sun, forever linked with 19 and 20 Century fantasy of a bellicose, intelligent Martian civilization. The romance and excitement of that fiction remains today, even as technologically sophisticated - botic orbiters, landers, and rovers seek to unveil Mars’ secrets; but so far, they have yet to find evidence of life. The aura of excitement, though, is justified for another reason: Mars is a very special place. It is the only planetary surface in the Solar System where humans, once free from the bounds of Earth, might hope to establish habitable, self-sufficient colonies. Endowed with an insatiable drive, focused motivation, and a keen sense of - ploration and adventure, humans will undergo the extremes of physical hardship and danger to push the envelope, to do what has not yet been done. Because of their very nature, there is little doubt that humans will in fact conquer Mars. But even earth-bound extremes, such those experienced by the early polar explorers, may seem like a walk in the park compared to future experiences on Mars.

Spacecraft Power Systems

Author : Mukund R. Patel
Publisher : CRC Press
ISBN 13 : 1003804217
Total Pages : 363 pages
Book Rating : 4.0/5 (38 download)

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Book Synopsis Spacecraft Power Systems by : Mukund R. Patel

Download or read book Spacecraft Power Systems written by Mukund R. Patel and published by CRC Press. This book was released on 2023-12-12 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second edition of Spacecraft Power Systems is a comprehensive coverage of the fundamentals, design trades, components, controls, and operations of spacecraft power systems based on the real-world design and operations of spacecraft that have successfully flown for decades. It also includes emerging high-voltage, high-power systems for in-space propulsion for interplanetary travel. With new and updated chapters, sections, and discussions, the second edition covers up-to-date high-voltage, MW-scale electric propulsion, updated PV and battery systems, spacecraft power components, power electronics, and their architectures and operations. This book also presents the latest in spacecraft design processes and trades, controls, operations, and protection. This book is intended for senior undergraduate and graduate students in mechanical, aerospace, and electrical engineering taking courses in Space Systems, Space Engineering, and Spacecraft Power Systems, as well as for practicing aerospace and power engineers and managers who are designing, developing, and operating spacecraft power systems.

Radioisotope Power Systems

Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309138574
Total Pages : 68 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Radioisotope Power Systems by : National Research Council

Download or read book Radioisotope Power Systems written by National Research Council and published by National Academies Press. This book was released on 2009-08-14 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spacecraft require electrical energy. This energy must be available in the outer reaches of the solar system where sunlight is very faint. It must be available through lunar nights that last for 14 days, through long periods of dark and cold at the higher latitudes on Mars, and in high-radiation fields such as those around Jupiter. Radioisotope power systems (RPSs) are the only available power source that can operate unconstrained in these environments for the long periods of time needed to accomplish many missions, and plutonium-238 (238Pu) is the only practical isotope for fueling them. Plutonium-238 does not occur in nature. The committee does not believe that there is any additional 238Pu (or any operational 238Pu production facilities) available anywhere in the world.The total amount of 238Pu available for NASA is fixed, and essentially all of it is already dedicated to support several pending missions-the Mars Science Laboratory, Discovery 12, the Outer Planets Flagship 1 (OPF 1), and (perhaps) a small number of additional missions with a very small demand for 238Pu. If the status quo persists, the United States will not be able to provide RPSs for any subsequent missions.

International Reference Guide to Space Launch Systems

Author : Steven J. Isakowitz
Publisher : AIAA (American Institute of Aeronautics & Astronautics)
ISBN 13 :
Total Pages : 680 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis International Reference Guide to Space Launch Systems by : Steven J. Isakowitz

Download or read book International Reference Guide to Space Launch Systems written by Steven J. Isakowitz and published by AIAA (American Institute of Aeronautics & Astronautics). This book was released on 2004 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt: This bestselling reference guide contains the most reliable and comprehensive material on launch programs in Brazil, China, Europe, India, Israel, and the United States. Packed with illustrations and figures, this edition has been updated and expanded, and offers a quick and easy data retrieval source for policy makers, planners, engineers, launch buyers, and students.

Space Vehicle Design

Author : Michael Douglas Griffin
Publisher : AIAA
ISBN 13 : 9781600861123
Total Pages : 700 pages
Book Rating : 4.8/5 (611 download)

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Book Synopsis Space Vehicle Design by : Michael Douglas Griffin

Download or read book Space Vehicle Design written by Michael Douglas Griffin and published by AIAA. This book was released on 2004 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Sourcebook for Teaching Science, Grades 6-12

Author : Norman Herr
Publisher : John Wiley & Sons
ISBN 13 : 0787972983
Total Pages : 614 pages
Book Rating : 4.7/5 (879 download)

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Book Synopsis The Sourcebook for Teaching Science, Grades 6-12 by : Norman Herr

Download or read book The Sourcebook for Teaching Science, Grades 6-12 written by Norman Herr and published by John Wiley & Sons. This book was released on 2008-08-11 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Sourcebook for Teaching Science is a unique, comprehensive resource designed to give middle and high school science teachers a wealth of information that will enhance any science curriculum. Filled with innovative tools, dynamic activities, and practical lesson plans that are grounded in theory, research, and national standards, the book offers both new and experienced science teachers powerful strategies and original ideas that will enhance the teaching of physics, chemistry, biology, and the earth and space sciences.

Space Mining and Manufacturing

Author : Davide Sivolella
Publisher : Springer Nature
ISBN 13 : 3030308812
Total Pages : 218 pages
Book Rating : 4.0/5 (33 download)

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Book Synopsis Space Mining and Manufacturing by : Davide Sivolella

Download or read book Space Mining and Manufacturing written by Davide Sivolella and published by Springer Nature. This book was released on 2019-12-05 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book produces convincing evidence that exploiting the potential of space could help solve many environmental and social issues affecting our planet, such as pollution, overcrowding, resource depletion and conflicts, economic inequality, social unrest, economic instability and unemployment. It also touches on the legal problems that will be encountered with the implementation of the new technologies and new laws that will need to be enacted and new organizations that will need to be formed to deal with these changes. This proposition for a space economy is not science fiction, but well within the remit of current or under development technologies. Numerous technologies are described and put together to form a coherent and feasible road map that, if implemented, could lead humankind towards a brighter future.

Large Space Structures & Systems in the Space Station Era

Author :
Publisher :
ISBN 13 :
Total Pages : 1042 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Large Space Structures & Systems in the Space Station Era by :

Download or read book Large Space Structures & Systems in the Space Station Era written by and published by . This book was released on 1991 with total page 1042 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Nuclear Space Power and Propulsion Systems

Author : Claudio Bruno
Publisher : Progress in Astronautics and A
ISBN 13 : 9781563479519
Total Pages : 282 pages
Book Rating : 4.4/5 (795 download)

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Book Synopsis Nuclear Space Power and Propulsion Systems by : Claudio Bruno

Download or read book Nuclear Space Power and Propulsion Systems written by Claudio Bruno and published by Progress in Astronautics and A. This book was released on 2008 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nuclear propulsion : an introduction / Claudio Bruno -- Nuclear-thermal-rocket propulsion systems / Timothy J. Lawrence -- Application of ion thrusters to high-thrust, high-specific-impulse nuclear electric missions / D.G. Fearn -- High-power and high-thrust-density electric propulsion for in-space transportation / Monika Auweter-Kurtz and Helmut Kurtz -- Review of reactor configurations for space nuclear electric propulsion and surface power considerations / Roger X. Lenard -- Nuclear safety : legal aspects and policy recommendations / Roger X. Lenard -- Radioactivity, doses, and risks in nuclear propulsion / Alessio Del Rossi and Claudio Bruno -- The Chernobyl accident : a detailed account / Alessio del Rossi and Claudio Bruno.

Space Nuclear Propulsion for Human Mars Exploration

Author : National Academies of Sciences Engineering and Medicine
Publisher :
ISBN 13 : 9780309684804
Total Pages : pages
Book Rating : 4.6/5 (848 download)

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Book Synopsis Space Nuclear Propulsion for Human Mars Exploration by : National Academies of Sciences Engineering and Medicine

Download or read book Space Nuclear Propulsion for Human Mars Exploration written by National Academies of Sciences Engineering and Medicine and published by . This book was released on 2021-11-12 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Space Nuclear Propulsion for Human Mars Exploration identifies primary technical and programmatic challenges, merits, and risks for developing and demonstrating space nuclear propulsion technologies of interest to future exploration missions. This report presents key milestones and a top-level development and demonstration roadmap for performance nuclear thermal propulsion and nuclear electric propulsion systems and identifies missions that could be enabled by successful development of each technology.

Reactor Development

Author : Lyle B. Borst
Publisher :
ISBN 13 :
Total Pages : 6 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Reactor Development by : Lyle B. Borst

Download or read book Reactor Development written by Lyle B. Borst and published by . This book was released on 1948 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The 100 Most Influential Inventors of All Time

Author : Britannica Educational Publishing
Publisher : Britannica Educational Publishing
ISBN 13 : 1615300422
Total Pages : 337 pages
Book Rating : 4.6/5 (153 download)

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Book Synopsis The 100 Most Influential Inventors of All Time by : Britannica Educational Publishing

Download or read book The 100 Most Influential Inventors of All Time written by Britannica Educational Publishing and published by Britannica Educational Publishing. This book was released on 2009-10-01 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: If necessity is indeed the mother of invention, then the individuals profiled in this volume should be considered the most laudable of all midwives. They each saw a need and met it. Readers will learn more about the lives and methodologies of well-known inventors such as Benjamin Franklin and Thomas Edison, and become familiar with several more whose creations have sometimes outstripped their personal fame.

NAA-SR.

Author : U.S. Atomic Energy Commission
Publisher :
ISBN 13 :
Total Pages : 216 pages
Book Rating : 4.0/5 (92 download)

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Book Synopsis NAA-SR. by : U.S. Atomic Energy Commission

Download or read book NAA-SR. written by U.S. Atomic Energy Commission and published by . This book was released on 1958 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Worldwide History of Telecommunications

Author : Anton A. Huurdeman
Publisher : John Wiley & Sons
ISBN 13 : 9780471205050
Total Pages : 670 pages
Book Rating : 4.2/5 (5 download)

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Book Synopsis The Worldwide History of Telecommunications by : Anton A. Huurdeman

Download or read book The Worldwide History of Telecommunications written by Anton A. Huurdeman and published by John Wiley & Sons. This book was released on 2003-07-31 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first comprehensive history of the Information Age... how we got there and where we are going The exchange of information is essential for both the organization of nature and the social life of mankind. Until recently, communication between people was more or less limited by geographic proximity. Today, thanks to ongoing innovations in telecommunications, we live in an Information Age where distance has ceased to be an obstacle to the sharing of ideas. The Worldwide History of Telecommunications is the first comprehensive history ever written on the subject, covering every aspect of telecommunications from a global perspective. In clear, easy-to-understand language, the author presents telecommunications as a uniquely human achievement, dependent on the contributions of many ingenious inventors, discoverers, physicists, and engineers over a period spanning more than two centuries. From the crude signaling methods employed in antiquity all the way to today’s digital era, The Worldwide History of Telecommunications features complete and fascinating coverage of the groundbreaking innovations that have served to make telecommunications the largest industry on earth, including: Optical telegraphy Electrical telegraphy via wires and cables Telephony and telephone switching Radio transmission technologies Cryptography Coaxial and optical fiber networks Telex and telefax Multimedia applications Broad in scope, yet clear and logical in its presentation, this groundbreaking book will serve as an invaluable resource for anyone involved or merely curious about the ever evolving field of telecommunications. AAP-PSP 2003 Award Winner for excellence in the discipline of the "History of Science"

The Cambridge Aerospace Dictionary

Author : Bill Gunston
Publisher : Cambridge University Press
ISBN 13 : 9780521279673
Total Pages : 0 pages
Book Rating : 4.2/5 (796 download)

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Book Synopsis The Cambridge Aerospace Dictionary by : Bill Gunston

Download or read book The Cambridge Aerospace Dictionary written by Bill Gunston and published by Cambridge University Press. This book was released on 2011-02-14 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Cambridge Aerospace Dictionary is an authoritative and accessible reference useful to scholars and enthusiasts alike. This dictionary is an essential tool for professionals involved in the aerospace industry and flight, and for anyone who must read and understand the technical literature of the aerospace industry and about specific air and space craft. It is also an ideal reference for engineering and physics students encountering a subject replete with technical jargon and acronyms. Bill Gunston, one of the most widely read and respected aviation writers, has added more than 5,000 new terms and acronyms to this carefully updated volume. Terms used in the dictionary reflect the diverse and international nature of the aerospace industry and include brief explanations of aerospace materials and organizations. Gunston has scrupulously avoided terms specific to manufacturers, airlines, and armed forces in an effort to encourage clear communication and understanding among professionals.