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Author : H. W. Loeb
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (258 download)
Download or read book Advanced Interplanetary Missions Using Nuclear-electric Propulsion written by H. W. Loeb and published by . This book was released on 1995 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 4 pages
Book Rating : 4.:/5 (727 download)
Download or read book Advanced Hybrid Nuclear Propulsion Mars Mission Performance Enhancement written by and published by . This book was released on 1992 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nuclear electric propulsion (NEP), compared with chemical and nuclear thermal propulsion (NTP), can effectively deliver the same mass to Mars using much less propellant, consequently requiring less mass delivered to Earth orbit. The lower thrust of NEP requires a spiral trajectory near planetary bodies, which significantly increases the travel time. Although the total travel time is long, the portion of the flight time spent during interplanetary transfer is shorter, because the vehicle is thrusting for much longer periods of time. This has led to the supposition that NEP, although very attractive for cargo missions, is not suitable for piloted missions to Mars. However, with the application of a hybrid approach to propulsion, the benefits of NEP can be utilized while drastically reducing the overall travel time required. Development of a dual-mode system, which utilizes high-thrust NTP to propel the spacecraft from the planetary gravitational influence and low-thrust NEP to accelerate in interplanetary space, eliminates the spiral trajectory and results in a much faster transit time than could be obtained by either NEP or NTP alone. This results in a mission profile with a lower initial mass in low Earth orbit. In addition, the propulsion system would have the capability to provide electrical power for mission applications.
Download or read book Nuclear Electric Propulsion for Planetary Science Missions: NASA Technology Program Planning written by and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Bahram Nassersharif, PH D
Publisher : Independently Published
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.3/5 (353 download)
Download or read book Space Nuclear Propulsion and Power written by Bahram Nassersharif, PH D and published by Independently Published. This book was released on 2024-08-08 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Space Nuclear Propulsion and Power: Principles, Systems, and Applications Unlock the Future of Space Exploration Space Nuclear Propulsion and Power: Principles, Systems, and Applications is a vital text for students, practitioners, and industry professionals, offering a deep exploration of space nuclear propulsion and power systems. This extensive guide provides essential knowledge for understanding and advancing technologies that will propel humanity into space. In-depth Coverage of Cutting-Edge Technologies This book examines various propulsion systems, including chemical and nuclear thermal propulsion. It details the fundamentals of rocket propulsion, combustion dynamics, nozzle design, and critical calculations. Readers gain insights into practical considerations, such as high-speed exhaust gas generation and efficiency optimization. Advanced Mathematical Formulations and Real-World Examples To ensure practical application, the book includes real-world examples and detailed mathematical formulations, such as the Tsiolkovsky rocket equation, nuclear fission, radioactivity, and neutronics. These examples help readers understand and apply principles to their studies in space nuclear systems. The structured approach, combining theory with practical examples, makes complex concepts accessible and engaging. Innovative Power Solutions for Space Missions Beyond propulsion, the book explores radioisotope thermoelectric generators (RTGs) and nuclear reactors for powering spacecraft and lunar bases. RTGs, converting heat from radioisotope decay into electricity, have powered missions like Voyager, Cassini, and New Horizons. Nuclear reactors offer high power levels for propulsion and power generation, with detailed coverage of Nuclear Thermal Propulsion (NTP) and Nuclear Electric Propulsion (NEP). NTP systems use a nuclear reactor to heat hydrogen, producing thrust, while NEP systems generate electricity to power electric thrusters, ideal for deep space missions. Powering Lunar Bases and Mars Missions Nuclear technologies extend beyond space travel to lunar and Mars missions. Nuclear reactors provide robust power sources for habitats, scientific experiments, and resource extraction on the Moon and Mars. These environments make solar power less viable, especially for long-duration missions. Nuclear power supports life support systems, communication, and mobility, offering sustainable energy where sunlight is insufficient. Inspiration for Future Innovators Space Nuclear Propulsion and Power is more than a textbook; it challenges readers to think critically about the future of space exploration and the role of nuclear technology. Emphasizing theory and practice integration, the book inspires curiosity and innovation, encouraging contributions to ongoing design and development in this fascinating field. Join the Journey to the Stars Whether you are a student or a seasoned professional, Space Nuclear Propulsion and Power offers valuable insights and guidance. Engage with the material, challenge presented concepts, and join the community advancing technologies that will shape space exploration's future and our understanding of the universe. Embrace the journey into the unknown and unlock the potential of space nuclear propulsion and power with this definitive text. Welcome to an exploration of technologies propelling humanity to the stars.
Author : W. E. Moeckel
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.:/5 (31 download)
Download or read book Fast Interplanetary Missions with Low-thrust Propulsion Systems written by W. E. Moeckel and published by . This book was released on 1961 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: A simple family of indirect-transfer trajectories between circular orbits is used to evaluate the mass ratio required to complete round-trip interplanetary missions using low-thrust propulsion systems. These trajectories, although not optimum, yielded very substantial reductions in total round-trip time for Mars missions with moderate increases in initial weight. For a powerplant specific weight [alpha] of 10 pounds per kilowatt of jet power, trip times were reduced from 1200 to 600 days, for a typical manned mission, with an initial weight increase of a factor of two. Comparison with a nuclear rocket with 1000-second specific impulse indicated that the electric-propulsion system required less initial weight for trip times as low as 550 days with [alpha]=10 and as low at 400 days with [alpha]=5 pounds per kilowatt. Further weight reductions would be expected with more nearly optimum trajectories.
Author : National Academies of Sciences Engineering and Medicine
Publisher :
ISBN 13 : 9780309684804
Total Pages : pages
Book Rating : 4.6/5 (848 download)
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.
Author :
Publisher :
ISBN 13 :
Total Pages : 108 pages
Book Rating : 4.:/5 (317 download)
Download or read book Advanced Mission Applications of Nuclear Electric Propulsion written by and published by . This book was released on 1972 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Martin Tajmar
Publisher : Springer Science & Business Media
ISBN 13 : 3709105471
Total Pages : 139 pages
Book Rating : 4.7/5 (91 download)
Download or read book Advanced Space Propulsion Systems written by Martin Tajmar and published by Springer Science & Business Media. This book was released on 2012-09-08 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: Space propulsion systems have a great influence on our ability to travel to other planets or how cheap a satellite can provide TV programs. This book provides an up-to-date overview of all kinds of propulsion systems ranging from classical rocket technology, nuclear propulsion to electric propulsion systems, and further to micro-, propellantless and even breakthrough propulsion, which is a new program under development at NASA. The author shows the limitations of the present concepts and how they could look like in the future. Starting from historical developments, the reader is taken on a journey showing the amazing technology that has been put on hold for decades to be rediscovered in the near future for questions like how we can even reach other stars within a human lifetime. The author is actively involved in advanced propulsion research and contributes with his own experience to many of the presented topics. The book is written for anyone who is interested in how space travel can be revolutionized.
Author :
Publisher :
ISBN 13 :
Total Pages : 7 pages
Book Rating : 4.:/5 (727 download)
Download or read book Mars Mission Performance Enhancement with Hybrid Nuclear Propulsion written by and published by . This book was released on 1992 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nuclear electric propulsion (NEP), compared with chemical and nuclear thermal propulsion (NTP), can effectively deliver the same mass to Mars using much less propellant, consequently requiring less mass delivered to Earth orbit. The lower thrust of NEP requires a spiral trajectory near planetary bodies, which significantly increases the travel time. Although the total travel time is long, the portion of the flight time spent during interplanetary transfer is shorter, because the vehicle is thrusting for much longer periods of time. This has led to the supposition that NEP, although very attractive for cargo missions, is not suitable for piloted missions to Mars. However, with the application of a hybrid application of a hybrid approach to propulsion, the benefits of NEP can be utilized while drastically reducing the overall travel time required. Development of a dual-mode system, which utilizes high-thrust NTP to propel the spacecraft from the planetary gravitational influence and low-thrust NEP to accelerate in interplanetary space, eliminates the spiral trajectory and results in a much faster transit time than could be obtained by either NEP or NTP alone. This results in a mission profile with a lower initial mass in low Earth orbit. In addition, the propulsion system would have the capability to provide electrical power for mission applications.
Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309180104
Total Pages : 158 pages
Book Rating : 4.3/5 (91 download)
Download or read book Priorities in Space Science Enabled by Nuclear Power and Propulsion written by National Research Council and published by National Academies Press. This book was released on 2006-03-20 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 2003, NASA began an R&D effort to develop nuclear power and propulsion systems for solar system exploration. This activity, renamed Project Prometheus in 2004, was initiated because of the inherent limitations in photovoltaic and chemical propulsion systems in reaching many solar system objectives. To help determine appropriate missions for a nuclear power and propulsion capability, NASA asked the NRC for an independent assessment of potentially highly meritorious missions that may be enabled if space nuclear systems became operational. This report provides a series of space science objectives and missions that could be so enabled in the period beyond 2015 in the areas of astronomy and astrophysics, solar system exploration, and solar and space physics. It is based on but does not reprioritize the findings of previous NRC decadal surveys in those three areas.
Author : William J. Emrich Jr.
Publisher : Elsevier
ISBN 13 : 0323900313
Total Pages : 430 pages
Book Rating : 4.3/5 (239 download)
Download or read book Principles of Nuclear Rocket Propulsion written by William J. Emrich Jr. and published by Elsevier. This book was released on 2023-03-11 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Principles of Nuclear Rocket Propulsion, Second Edition continues to put the technical and theoretical aspects of nuclear rocket propulsion into a clear and unified presentation, providing an understanding of the physical principles underlying the design and operation of nuclear fission-based rocket engines. This new edition expands on existing material and adds new topics, such as antimatter propulsion, nuclear rocket startup, new fuel forms, reactor stability, and new advanced reactor concepts. This new edition is for aerospace and nuclear engineers and advanced students interested in nuclear rocket propulsion. Provides an understanding of the physical principles underlying the design and operation of nuclear fission-based rocket engines Includes a number of example problems to illustrate the concepts being presented Contains an electronic version with interactive calculators and rotatable 3D figures to demonstrate the physical concepts being presented Features an instructor website that provides detailed solutions to all chapter review questions
Author :
Publisher :
ISBN 13 :
Total Pages : 13 pages
Book Rating : 4.:/5 (742 download)
Download or read book A Comparison of Nuclear Thermal and Nuclear Electric Propulsion for Interplanetary Missions written by and published by . This book was released on 2005 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comparison is made between nuclear thermal rockets and nuclear powered electric propulsion systems. Complete missions are designed to be launched by a single Ariane 5 and fly by Jupiter and Pluto powered either by a nuclear thermal system or a nuclear powered electric system. It is shown that it is feasible to build both nuclear thermal and nuclear electric missions to Jupiter and Pluto. Nuclear thermal systems are designed to go to Jupiter with an inert mass fraction of 0.6094, a power of 281.23 MW and a flight time of 4.13 years. Nuclear thermal systems are designed to go to Pluto with an inert mass fraction of 0.4182, a power of 281.23 MW and a flight time of 19 years. Nuclear electric systems are designed to go to Jupiter with an inert mass fraction of 0.5266, a power of 10.258 kW and a flight time of 4.13 years. Nuclear electric systems are designed to go to Pluto with an inert mass fraction of 0.2656, a power of 10.258 kW and a flight time of 19 years. The results of the system designs are analyzed and an outlook is given for each system. Additional issues of testing, safety and radiological hazards are discussed.
Author : Jaclyn Cichon
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (659 download)
Download or read book Trade Study of Nuclear Space Power and Propulsion System Architectures for Advanced Interplanetary Travel written by Jaclyn Cichon and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: Past mission analysis studies for interplanetary missions have typically focused on assessing one power and propulsion system applied to a singular mission. This has led to a lack of comparable results for different power and propulsion systems, and limited systematic procedures for mission planning. We attempted to address these faults through a comprehensive trade study on NTR, NEP, and Hybrid power and propulsion systems, grouped by NTR fuel type or electric thruster type into eleven configurations. Ephemeris codes were used to investigate mission planning and departure options, and vehicle models were developed and then analyzed through parametric performance plots. Lastly, measures of effectiveness were defined and used to assess a tradespace matrix containing all vehicle configurations applied to twelve optimized reference missions. This assessment provided a simplified ranking of specific vehicle designs for each given interplanetary mission, along with a comparison of vehicle performance based on important figures of merit such as propellant mass and IMLEO.
Author : Franklin Chang Díaz
Publisher : Springer
ISBN 13 : 3319229184
Total Pages : 218 pages
Book Rating : 4.3/5 (192 download)
Download or read book To Mars and Beyond, Fast! written by Franklin Chang Díaz and published by Springer. This book was released on 2017-06-03 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: As advanced in-space propulsion moves from science fiction to reality, the Variable Specific Impulse Magnetoplasma Rocket, or VASIMR® engine, is a leading contender for making 'Mars in a month' a possibility. A paradigm shift in space transportation, this book is an in-depth and compelling story co-written by its inventor. It traces the riveting history of the development of the VASIMR® engine. This landmark technology is grounded in concepts of advanced plasma physics. It cross-pollinates ideas and disciplines to offer a new, practical, and sustainable solution for in-space transportation beyond low Earth orbit in the decades to come. Invented by the co-holder of the world’s spaceflight record, astronaut Franklin Chang Díaz, the VASIMR® engine is developed by Ad Astra Rocket Company in its Texas facilities with NASA as part of the NextSTEP VASIMR® partnership. With adequate funding, the first spaceflight of the VASIMR® engine is imminent. Plasma rockets feature exhaust velocities far above those achievable by conventional chemical rockets. The VASIMR® engine is the most advanced high-power plasma propulsion system operating in the world today and it may place long, fast interplanetary journeys withinour reach in the near future.
Author : National Aeronautics and Space Adm Nasa
Publisher : Independently Published
ISBN 13 : 9781731319760
Total Pages : 128 pages
Book Rating : 4.3/5 (197 download)
Download or read book Summary and Recommendations on Nuclear Electric Propulsion Technology for the Space Exploration Initiative written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-11-14 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: A project in Nuclear Electric Propulsion (NEP) technology is being established to develop the NEP technologies needed for advanced propulsion systems. A paced approach has been suggested which calls for progressive development of NEP component and subsystem level technologies. This approach will lead to major facility testing to achieve TRL-5 for megawatt NEP for SEI mission applications. This approach is designed to validate NEP power and propulsion technologies from kilowatt class to megawatt class ratings. Such a paced approach would have the benefit of achieving the development, testing, and flight of NEP systems in an evolutionary manner. This approach may also have the additional benefit of synergistic application with SEI extraterrestrial surface nuclear power applications. Doherty, Michael P. and Holcomb, Robert S. Glenn Research Center FLIGHT TESTS; MISSION PLANNING; NUCLEAR ELECTRIC PROPULSION; SPACE EXPLORATION; SPACECRAFT PROPULSION; PROPULSION SYSTEM CONFIGURATIONS; PROPULSION SYSTEM PERFORMANCE...
Author :
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (31 download)
Download or read book Enhancing Space Transportation : the NASA Program to Develop Electric Propulsion written by and published by . This book was released on 1990 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Dan M. Goebel
Publisher : John Wiley & Sons
ISBN 13 : 0470436263
Total Pages : 528 pages
Book Rating : 4.4/5 (74 download)
Download or read book Fundamentals of Electric Propulsion written by Dan M. Goebel and published by John Wiley & Sons. This book was released on 2008-12-22 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Throughout most of the twentieth century, electric propulsion was considered the technology of the future. Now, the future has arrived. This important new book explains the fundamentals of electric propulsion for spacecraft and describes in detail the physics and characteristics of the two major electric thrusters in use today, ion and Hall thrusters. The authors provide an introduction to plasma physics in order to allow readers to understand the models and derivations used in determining electric thruster performance. They then go on to present detailed explanations of: Thruster principles Ion thruster plasma generators and accelerator grids Hollow cathodes Hall thrusters Ion and Hall thruster plumes Flight ion and Hall thrusters Based largely on research and development performed at the Jet Propulsion Laboratory (JPL) and complemented with scores of tables, figures, homework problems, and references, Fundamentals of Electric Propulsion: Ion and Hall Thrusters is an indispensable textbook for advanced undergraduate and graduate students who are preparing to enter the aerospace industry. It also serves as an equally valuable resource for professional engineers already at work in the field.
