Radioisotope Power Systems


Book Description

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.




Nuclear Space Power and Propulsion Systems


Book Description

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.




Priorities in Space Science Enabled by Nuclear Power and Propulsion


Book Description

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.




Space Nuclear Propulsion for Human Mars Exploration


Book Description

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.




Space Nuclear Power


Book Description




The Role of Nuclear Power and Nuclear Propulsion in the Peaceful Exploration of Space


Book Description

Provides details of a variety of radioisotope power systems, shows in what circumstances they surpass other power systems, and provides the history of the space missions in which they have been employed. The book also summarizes the use of on-board reactors and the testing done on reactor rocket thrusters.




Power to Save the World


Book Description

An informed look at the myths and fears surrounding nuclear energy, and a practical, politically realistic solution to global warming and our energy needs. Faced by the world's oil shortages and curious about alternative energy sources, Gwyneth Cravens skeptically sets out to find the truth about nuclear energy. Her conclusion: it is a totally viable and practical solution to global warming. In the end, we see that if we are to care for subsequent generations, embracing nuclear energy is an ethical imperative.




Nuclear Roulette


Book Description

Nuclear power is not clean, cheap, or safe. With Three Mile Island, Chernobyl, and Fukushima, the nuclear industry's record of catastrophic failures now averages one major disaster every decade. After three US-designed plants exploded in Japan, many countries moved to abandon reactors for renewables. In the United States, however, powerful corporations and a compliant government still defend nuclear power-while promising billion-dollar bailouts to operators. Each new disaster demonstrates that the nuclear industry and governments lie to "avoid panic," to preserve the myth of "safe, clean" nuclear power, and to sustain government subsidies. Tokyo and Washington both covered up Fukushima's radiation risks and-when confronted with damning evidence-simply raised the levels of "acceptable" risk to match the greater levels of exposure. Nuclear Roulette dismantles the core arguments behind the nuclear-industrial complex's "Nuclear Renaissance." While some critiques are familiar-nuclear power is too costly, too dangerous, and too unstable-others are surprising: Nuclear Roulette exposes historic links to nuclear weapons, impacts on Indigenous lands and lives, and the ways in which the Nuclear Regulatory Commission too often takes its lead from industry, rewriting rules to keep failing plants in compliance. Nuclear Roulette cites NRC records showing how corporations routinely defer maintenance and lists resulting "near-misses" in the US, which average more than one per month. Nuclear Roulette chronicles the problems of aging reactors, uncovers the costly challenge of decommissioning, explores the industry's greatest seismic risks-not on California's quake-prone coast but in the Midwest and Southeast-and explains how solar flares could black out power grids, causing the world's 400-plus reactors to self-destruct. This powerful exposé concludes with a roundup of proven and potential energy solutions that can replace nuclear technology with a "Renewable Renaissance," combined with conservation programs that can cleanse the air, and cool the planet.




Principles of Nuclear Rocket Propulsion


Book Description

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




Sustainable Nuclear Power


Book Description

Sustainable Nuclear Power provides non-nuclear engineers, scientists and energy planners with the necessary information to understand and utilize the major advances in the field. The book demonstrates that nuclear fission technology has the abundance and attainability to provide centuries of safe power with minimal greenhouse gas generation. It also addresses the safety and disposal issues that have plagued the development of the nuclear power industry and scared planners and policy makers as well as the general public for more than two decades. In addition, the authors provide a Companion website, http://books.elsevier.com/companions, which gives access to government reports and case studies *No need for a background in nuclear science! This book guides engineers, scientists and energy professionals through a concise and easy-to-understand overview of key safety and sustainability issues affecting their work. *Details the very latest information about today's safest and most energy-efficient reactor designs and reprocessing procedures. *Brings to light the fears and hesitation of using nuclear energy and explains that technologies and procedures for safe production and processing are available today.