Author:
Publisher:
ISBN:
Category : Space vehicles
Languages : en
Pages : 20

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Author: United States. National Aeronautics and Space Administration
Publisher:
ISBN:
Category : Space vehicles
Languages : en
Pages : 54

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Author:
Publisher:
ISBN:
Category : Space vehicles
Languages : en
Pages : 20

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Author: John Mankins
Publisher:
ISBN: 9780991337019
Category :
Languages : en
Pages : 488

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This book makes the case for Space Solar Power; recounting the history of this fascinating concept and summarizing the many different ways in which it might be accomplished. The book describes in detail a highly promising concept - SPS-ALPHA (Solar Power Satellite by means of Arbitrarily Large Phased Array) - and presents a business case comprising applications in space and markets on Earth. The book explains how it is possible to begin now with technologies that are already at hand, while developing the more advanced technologies that will be needed to deliver power economically to markets on Earth. The Case for Space Solar Power concludes by laying out a path forward that is both achievable and affordable: within a dozen years or less, the first multi-megawatt pilot plant could be in operation. Getting started could cost less than $10 million over the first 2 years, less than $100 million over the next half dozen years. Given that space solar power would transform our future in space, and might provide a new source of virtually limitless and sustainable energy to markets across the world, the book poses the question, "Why wouldn't we pursue space solar power?"

Author: David Buden
Publisher:
ISBN: 9780974144344
Category : Science
Languages : en
Pages : 277

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The advantages of space nuclear fission power systems can be summarized as: compact size; low to moderate mass; long operating lifetimes; the ability to operate in extremely hostile environments; operation independent of the distance from the Sun or of the orientation to the Sun; and high system reliability and autonomy. In fact, as power requirements approach the tens of kilowatts and megawatts, fission nuclear energy appears to be the only realistic power option. The building blocks for space nuclear fission electric power systems include the reactor as the heat source, power generation equipment to convert the thermal energy to electrical power, waste heat rejection radiators and shielding to protect the spacecraft payload. The power generation equipment can take the form of either static electrical conversion elements that have no moving parts (e.g., thermoelectric or thermionic) or dynamic conversion components (e.g., the Rankine, Brayton or Stirling cycle). The U.S. has only demonstrated in space, or even in full systems in a simulated ground environment, uranium-zirconium-hydride reactor power plants. These power plants were designed for a limited lifetime of one year and the mass of scaled up power plants would probably be unacceptable to meet future mission needs. Extensive development was performed on the liquid-metal cooled SP-100 power systems and components were well on their way to being tested in a relevant environment. A generic flight system design was completed for a seven year operating lifetime power plant, but not built or tested. The former USSR made extensive use of space reactors as a power source for radar ocean reconnaissance satellites. They launched some 31 missions using reactors with thermoelectric power conversion systems and two with thermionic converters. Current activities are centered on Fission Surface Power for lunar applications. Activities are concentrating on demonstrating component readiness. This book will discuss the components that make up a nuclear fission power system, the principal requirements and safety issues, various development programs, status of developments, and development issues.

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 34

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Author: John Perlin
Publisher: Harvard University Press
ISBN: 9780674010130
Category : Nature
Languages : en
Pages : 244

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From Space to Earth tracks the evolution of the technology of photovoltaics, the use of solar cells to convert the sun's energy into electricity. John Perlin's painstaking research results in a fascinating account of the development of this technology, from its shaky nineteenth-century beginnings mired in scientific controversy to its high-visibility success in the space program, to its current position as a versatile and promising power source.

Author: Joseph N. Pelton
Publisher: Springer
ISBN: 9783030363079
Category : Science
Languages : en
Pages : 0

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Book Description
In the past decade, the field of small satellites has expanded the space industry in a powerful way. Hundreds, indeed thousands, of these innovative and highly cost-efficient satellites are now being launched from Earth to establish low-cost space systems. These smallsats are engaged in experiments and prototype testing, communications services, data relay, internet access, remote sensing, defense and security related services, and more. Some of these systems are quite small and are simple student experiments, while others in commercial constellations are employing state-of-the-art technologies to deliver fast and accurate services. This handbook provides a comprehensive overview of this exciting new field. It covers the technology, applications and services, design and manufacture, launch arrangements, ground systems, and economic and regulatory arrangements surrounding small satellites. The diversity of approach in recent years has allowed for rapid innovation and economic breakthroughs to proceed at a pace that seems only to be speeding up. In this reference work, readers will find information pertaining to all aspects of the small satellite industry, written by a host of international experts in the field.

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Author: Danny Royce Jones, Sr.
Publisher: CreateSpace
ISBN: 9781494257804
Category : Science
Languages : en
Pages : 196

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Book Description
Innovation has delivered humanity from the caves to the ability to access the edge of space and to send robotic explorers deep into the solar system. It is the driving force in mankind's expansion, growth and technological development. Beamed energy technology could potentially lower the cost of access to space and transportation though space, thereby lowering the cost of transporting goods and people to many destinations in the solar system and beyond. Technology spin-off from space technology investments will benefit all of humanity. Spin-offs could have a huge positive impact in the areas of electronics and instrumentation, automotive, solar energy and lower cost space transportation. In order for humanity to move into space to settle this new frontier innovation in beamed energy technologies will be required. In this book we will look at the topic of space solar energy and the technologies that can be used to generate this energy. While some of the ideas in this book go back to the original concepts many of the ideas and concepts are new. It is hoped that others will apply these ideas into even new and better approaches so that we can move into space in a really big way, but also do this in ways that are cost effective and even profitable. Access to sun power in space is the key to developing its resources and those resources are required to support large scale space settlement. We don't need to wait decades to develop the technologies for space solar energy because these technologies already exist. We are just not using them. These technologies can provide us with the means to travel rapidly and cheaply though space. They can also be used to power our industry and homes on Earth. We have only to utilize the technology. The development of space will depend on the availability of power and lots of it. Once we have mastered that, all things become possible. We will be able to transport people and cargo to many destinations in our solar system, power the earth with clean and abundant energy, and tap the resources of asteroids and comets. Once we have settled the near Earth areas of the solar system, such as, the Moon, Mars and Venus we can strike out to other star systems. As the World's need for solar energy continues to grow driven by population growth and increased industrialization, new options for this type of energy will be needed. This is especially true given that reserves of conventional energy sources such as oil, gas and uranium are rapidly being depleted and that greenhouse gases being released into the atmosphere are causing large scale damage to the Earth. We find that alternatives energy sources such as wind, ground solar and biomass have physical site limitations and while they are certainly desirable from an ecological prospective, are often high cost and cannot meet the Earth's future energy needs even if fully developed. The solar energy collected by an SPS would be converted into electricity, then into microwaves. The microwaves would be beamed to the Earth's surface, where they would be received and converted back into electricity by a large array of devices known as a rectifying antenna, or rectenna. Rectification is the process by which alternating electrical current, such as that induced by a microwave beam, is converted to direct current.