Scientific and Technical Aerospace Reports PDF Download
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Category : Aeronautics
Languages : en
Pages : 1282
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Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1282
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Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
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Category : Power resources
Languages : en
Pages : 876
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Book Description
Author: Francis C. Younger
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Category : Electric automobiles
Languages : en
Pages : 236
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Book Description
Advanced electric propulsion system concepts with flywheels for electric vehicles are evaluated and it is predicted that advanced systems can provide considerable performance improvement over existing electric propulsion systems with little or no cost penalty. Using components specifically designed for an integrated electric propulsion system avoids the compromises that frequently lead to a loss of efficiency and to inefficient utilization of space and weight. A propulsion system using a flywheel power energy storage device can provide excellent acceleration under adverse conditions of battery degradation due either to very low temperatures or high degrees of discharge. Both electrical and mechanical means of transfer of energy to and from the flywheel appear attractive; however, development work is required to establish the safe limits of speed and energy storage for advanced flywheel designs and to achieve the optimum efficiency of energy transfer. Brushless traction motor designs using either electronic commutation schemes or dc-to-ac inverters appear to provide a practical approach to a mass producible motor, with excellent efficiency and light weight. No comparisons were made with advanced system concepts which do not incorporate a flywheel.
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Category : Fuel
Languages : en
Pages : 838
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Category : Science
Languages : en
Pages : 734
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Category :
Languages : en
Pages : 724
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Book Description
Author: Ernest Henry Wakefield
Publisher: SAE International
ISBN: 0768037492
Category : Technology & Engineering
Languages : en
Pages : 366
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Book Description
For more than a century, people have attempted to harness electricity, the clean and versatile fuel, for personal transportation. With impressive technical clarity and historical insight, author Ernest Wakefield reviews these attempts in History of the Electric Automobile: Hybrid Electric Vehicles. He focuses exclusively on electric vehicles that harness the potential of electricity when combined with another energy source - hybrid electric vehicles (HEV). The book details the historical development of capacitors, engines, flywheels, fuel cells, inductive charging, and solar cells - and the application of each to hybrid electric vehicles.
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Category : Highway engineering
Languages : en
Pages : 504
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Author: United States. Energy Research and Development Administration
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Category : Medicine
Languages : en
Pages : 1030
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Author:
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Category : Fuel
Languages : en
Pages : 990
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