Evaluation Of All Electric Secondary Power For Transport Aircraft

Evaluation of All Electric Secondary Power for Transport Aircraft PDF
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
Format: PDF, ePub
Category :
Languages : en
Pages : 334
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Book Description: This report covers a study by Douglas Aircraft Company (DAC) of electrical power systems for advanced transport aircraft based upon an all-electric design concept. The concept would eliminate distributed hydraulic and pneumatic secondary power systems, and feature an expanded secondary electrical power system redesigned to supply power to the loads customarily supplied by hydraulic or pneumatic power. The initial study was based on an advanced 20-kHz electrical power transmission and distribution system, using a system architecture supplied by NASA-Lewis Research Center for twin-engine aircraft with many advanced power conversion concepts. NASA-LeRC later requested DAC to refocus the study on 400-Hz secondary power distribution. Subsequent work was based on a three-engine MD-11 aircraft, selected by DAC as a baseline system design that would provide data for the comparative cost/benefit analysis. The study concluded that the 20-kHz concept produced many expected benefits, and that the all-electric trijet weight savings on hardware redesign would be 2,304 pounds plus a 2.1-percent fuel reduction and resized for a total weight reduction of 11,000 pounds. Cost reductions for a fleet of 800 aircraft in a 15-year production program were estimated at $76.71 million for RDT&E; $2.74 million per aircrat for production; $9.84 million for nonrecurring expenses; $120,000 per aircraft for product support; and $300,000 per aircraft per year for operating and maintenance costs, giving a present value of $1.914 billion saved or a future value of $10.496 billion saved. Murray, W. E. and Feiner, L. J. and Flores, R. R. Unspecified Center NASA-CR-189077, NAS 1.26:189077, MDC-91K0418 NAS3-25965...


Advanced Secondary Power System For Transport Aircraft

Advanced Secondary Power System for Transport Aircraft PDF
Author:
Publisher:
Format: PDF, ePub
Category : Airplanes
Languages : en
Pages : 44
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Nasa Technical Paper

NASA Technical Paper PDF
Author:
Publisher:
Format: PDF, Mobi
Category : Science
Languages : en
Pages : 52
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Technology 2000

Technology 2000 PDF
Author:
Publisher:
Format: PDF, ePub, Mobi
Category : Technology
Languages : en
Pages : 436
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Nasa Technical Paper

NASA Technical Paper PDF
Author:
Publisher:
Format: PDF, ePub
Category : Astronautics
Languages : en
Pages : 76
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Nasa Technical Memorandum

NASA Technical Memorandum PDF
Author:
Publisher:
Format: PDF, Kindle
Category : Aeronautics
Languages : en
Pages : 492
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Annual Report

Annual Report PDF
Author: Lewis Research Center
Publisher:
Format: PDF, ePub, Docs
Category : Space sciences
Languages : en
Pages : 264
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Annual Report 1989

Annual Report  1989 PDF
Author: Lewis Research Center
Publisher:
Format: PDF, ePub
Category : Space sciences
Languages : en
Pages : 256
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Variational Analysis And Aerospace Engineering Mathematical Challenges For Aerospace Design

Variational Analysis and Aerospace Engineering  Mathematical Challenges for Aerospace Design PDF
Author: Giuseppe Buttazzo
Publisher: Springer Science & Business Media
Format: PDF, ePub, Docs
Category : Mathematics
Languages : en
Pages : 462
View: 4700
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Book Description: This volume consists of papers presented at the Variational Analysis and Aerospace Engineering Workshop II held in Erice, Italy in September 2010 at the International School of Mathematics "Guido Stampacchia". The workshop provided a platform for aerospace engineers and mathematicians (from universities, research centers and industry) to discuss the advanced problems requiring an extensive application of mathematics. The presentations were dedicated to the most advanced subjects in engineering and, in particular to computational fluid dynamics methods, introduction of new materials, optimization in aerodynamics, structural optimization, space missions, flight mechanics, control theory and optimization, variational methods and applications, etc. This book will capture the interest of researchers from both academia and industry.


The Proceedings Of The 16th Annual Conference Of China Electrotechnical Society

The proceedings of the 16th Annual Conference of China Electrotechnical Society PDF
Author: Xidong Liang
Publisher: Springer Nature
Format: PDF, Mobi
Category : Technology & Engineering
Languages : en
Pages : 1396
View: 4621
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Book Description: This book gathers outstanding papers presented at the 16th Annual Conference of China Electrotechnical Society, organized by China Electrotechnical Society (CES), held in Beijing, China, from September 24 to 26, 2021. It covers topics such as electrical technology, power systems, electromagnetic emission technology, and electrical equipment. It introduces the innovative solutions that combine ideas from multiple disciplines. The book is very much helpful and useful for the researchers, engineers, practitioners, research students, and interested readers.


Monthly Catalog Of United States Government Publications

Monthly Catalog of United States Government Publications PDF
Author:
Publisher:
Format: PDF, Kindle
Category : Government publications
Languages : en
Pages : 1224
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Monthly Catalogue United States Public Documents

Monthly Catalogue  United States Public Documents PDF
Author:
Publisher:
Format: PDF
Category : Government publications
Languages : en
Pages : 1300
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Small Business Innovation Research

Small Business Innovation Research PDF
Author:
Publisher:
Format: PDF, ePub, Docs
Category : Small business
Languages : en
Pages : 170
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Book Description:


Scientific And Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF
Author:
Publisher:
Format: PDF, Docs
Category : Aeronautics
Languages : en
Pages : 602
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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.


Nasa Scientific And Technical Publications

NASA Scientific and Technical Publications PDF
Author:
Publisher:
Format: PDF, ePub
Category : Aeronautics
Languages : en
Pages : 410
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Book Description:


An Advanced Concept Secondary Power Systems Study For An Advanced Transport Technology Aircraft

An Advanced Concept Secondary Power Systems Study for an Advanced Transport Technology Aircraft PDF
Author:
Publisher:
Format: PDF, ePub, Mobi
Category :
Languages : en
Pages : 166
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Energy A Continuing Bibliography With Indexes

Energy  a Continuing Bibliography with Indexes PDF
Author:
Publisher:
Format: PDF, Docs
Category : Fuel
Languages : en
Pages : 610
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Energy

Energy PDF
Author:
Publisher:
Format: PDF, Kindle
Category : Fuel
Languages : en
Pages : 116
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Nasa Sp

NASA SP  PDF
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Format: PDF, Kindle
Category : Aeronautics
Languages : en
Pages : 654
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Departments Of Veterans Affairs And Housing And Urban Development And Independent Agencies Appropriations For 1997

Departments of Veterans Affairs and Housing and Urban Development  and Independent Agencies Appropriations for 1997 PDF
Author: United States. Congress. House. Committee on Appropriations. Subcommittee on VA, HUD, and Independent Agencies
Publisher:
Format: PDF, Docs
Category : United States
Languages : en
Pages : 1052
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