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Author: Ernst Wolfgang Stautner
Publisher: Springer Nature
ISBN: 3031714083
Category :
Languages : en
Pages : 349
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Book Description
Author: Ernst Wolfgang Stautner
Publisher: Springer Nature
ISBN: 3031714083
Category :
Languages : en
Pages : 349
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Book Description
Author: Klaus D. Timmerhaus
Publisher: Springer Science & Business Media
ISBN: 1468487566
Category : Science
Languages : en
Pages : 614
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Book Description
Cryogenics, a term commonly used to refer to very low temperatures, had its beginning in the latter half of the last century when man learned, for the first time, how to cool objects to a temperature lower than had ever existed na tu rally on the face of the earth. The air we breathe was first liquefied in 1883 by a Polish scientist named Olszewski. Ten years later he and a British scientist, Sir James Dewar, liquefied hydrogen. Helium, the last of the so-caBed permanent gases, was finally liquefied by the Dutch physicist Kamerlingh Onnes in 1908. Thus, by the beginning of the twentieth century the door had been opened to astrange new world of experimentation in which aB substances, except liquid helium, are solids and where the absolute temperature is only a few microdegrees away. However, the point on the temperature scale at which refrigeration in the ordinary sense of the term ends and cryogenics begins has ne ver been weB defined. Most workers in the field have chosen to restrict cryogenics to a tem perature range below -150°C (123 K). This is a reasonable dividing line since the normal boiling points of the more permanent gases, such as helium, hydrogen, neon, nitrogen, oxygen, and air, lie below this temperature, while the more common refrigerants have boiling points that are above this temperature. Cryogenic engineering is concerned with the design and development of low-temperature systems and components.
Author: K. D. Timmerhaus
Publisher: Springer Science & Business Media
ISBN: 1475704895
Category : Science
Languages : en
Pages : 802
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Book Description
The University of Colorado and the National Bureau of Standards have once again served as hosts for the Cryogenic Engineering Conference in Boulder, Colorado. In presenting the papers of this twelfth annual meeting, the 1966 Cryogenic Engineering Conference Committee has again recognized the excellent cooperation which has existed between these two organizations over the past decade with regard to both cryogenic research and conference activity. This cooperation was demonstrated not only at the 1966 Cryogenic Engineering Conference but also at the International Institute of Refrigeration, Commission I Meeting, which was also hosted by these two organizations immediately following the Cryogenic Engineering Conference. These two meetings have provided attendees with one of the most comprehensive coverages of cryogenic topics that has ever been presented at one location. Emphasis on major international advances in helium technology at the International Institute of Refrigeration, Commission I Meeting has been possible largely through the National Science Foundation Grant GK 1116 to the University of Colorado. The Cryogenic Engineering Conference Committee gratefully acknowledges this support because of its valuable international contribution to the Cryogenic Engineering Conference. As in the past, the Cryogenic Engineering Conference Committee is grateful for the continued assistance of all the dedicated workers in the cryogenic field who have contributed their time reviewing the preliminary papers for the program and the final manuscripts for this volume.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 232
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Book Description
Author: Ellen M. Codlin
Publisher:
ISBN:
Category : Low temperature engineering
Languages : en
Pages : 326
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Book Description
Author: Kiruba Haran
Publisher: Cambridge University Press
ISBN: 1108321615
Category : Technology & Engineering
Languages : en
Pages : 318
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Book Description
What are the benefits of electrified propulsion for large aircraft? What technology advancements are required to realize these benefits? How can the aerospace industry transition from today's technologies to state-of-the-art electrified systems? Learn the answers with this multidisciplinary text, combining expertise from leading researchers in electrified aircraft propulsion. The book includes broad coverage of electrification technologies – spanning power systems and power electronics, materials science, superconductivity and cryogenics, thermal management, battery chemistry, system design, and system optimization – and a clear-cut road map identifying remaining gaps between the current state-of-the-art and future performance technologies. Providing expert guidance on areas for future research and investment and an ideal introduction to cutting-edge advances and outstanding challenges in large electric aircraft design, this is a perfect resource for graduate students, researchers, electrical and aeronautical engineers, policymakers, and management professionals interested in next-generation commercial flight technologies.
Author: United States. Department of the Air Force
Publisher:
ISBN:
Category : Soldiers
Languages : en
Pages : 1246
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 244
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 412
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Author: Marie H. Tuttle
Publisher:
ISBN:
Category : Low temperature engineering
Languages : en
Pages : 146
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Book Description
