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Author: Tero Tuovinen
Publisher: Springer Nature
ISBN: 3031611098
Category :
Languages : en
Pages : 289
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Book Description
Author: Tero Tuovinen
Publisher: Springer Nature
ISBN: 3031611098
Category :
Languages : en
Pages : 289
Get Book Here
Book Description
Author: Emily S. Nelson
Publisher: CRC Press
ISBN: 1136318194
Category : Nature
Languages : en
Pages : 493
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Book Description
Aircraft emissions currently account for ~3.5% of all greenhouse gas emissions. The number of passenger miles has increased by 5% annually despite 9/11, two wars and gloomy economic conditions. Since aircraft have no viable alternative to the internal combustion engine, improvements in aircraft efficiency and alternative fuel development become essential. This book comprehensively covers the relevant issues in green aviation. Environmental impacts, technology advances, public policy and economics are intricately linked to the pace of development that will be realized in the coming decades. Experts from NASA, industry and academia review current technology development in green aviation that will carry the industry through 2025 and beyond. This includes increased efficiency through better propulsion systems, reduced drag airframes, advanced materials and operational changes. Clean combustion and emission control of noise, exhaust gases and particulates are also addressed through combustor design and the use of alternative fuels. Economic imperatives from aircraft lifetime and maintenance logistics dictate the drive for "drop-in" fuels, blending jet-grade and biofuel. New certification standards for alternative fuels are outlined. Life Cycle Assessments are used to evaluate worldwide biofuel approaches, highlighting that there is no single rational approach for sustainable buildup. In fact, unless local conditions are considered, the use of biofuels can create a net increase in environmental impact as a result of biofuel manufacturing processes. Governmental experts evaluate current and future regulations and their impact on green aviation. Sustainable approaches to biofuel development are discussed for locations around the globe, including the US, EU, Brazil, China and India.
Author: Egbert Torenbeek
Publisher: John Wiley & Sons
ISBN: 1118568095
Category : Technology & Engineering
Languages : en
Pages : 412
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Book Description
Although the overall appearance of modern airliners has not changed a lot since the introduction of jetliners in the 1950s, their safety, efficiency and environmental friendliness have improved considerably. Main contributors to this have been gas turbine engine technology, advanced materials, computational aerodynamics, advanced structural analysis and on-board systems. Since aircraft design became a highly multidisciplinary activity, the development of multidisciplinary optimization (MDO) has become a popular new discipline. Despite this, the application of MDO during the conceptual design phase is not yet widespread. Advanced Aircraft Design: Conceptual Design, Analysis and Optimization of Subsonic Civil Airplanes presents a quasi-analytical optimization approach based on a concise set of sizing equations. Objectives are aerodynamic efficiency, mission fuel, empty weight and maximum takeoff weight. Independent design variables studied include design cruise altitude, wing area and span and thrust or power loading. Principal features of integrated concepts such as the blended wing and body and highly non-planar wings are also covered. The quasi-analytical approach enables designers to compare the results of high-fidelity MDO optimization with lower-fidelity methods which need far less computational effort. Another advantage to this approach is that it can provide answers to “what if” questions rapidly and with little computational cost. Key features: Presents a new fundamental vision on conceptual airplane design optimization Provides an overview of advanced technologies for propulsion and reducing aerodynamic drag Offers insight into the derivation of design sensitivity information Emphasizes design based on first principles Considers pros and cons of innovative configurations Reconsiders optimum cruise performance at transonic Mach numbers Advanced Aircraft Design: Conceptual Design, Analysis and Optimization of Subsonic Civil Airplanes advances understanding of the initial optimization of civil airplanes and is a must-have reference for aerospace engineering students, applied researchers, aircraft design engineers and analysts.
Author: Ramesh Agarwal
Publisher: John Wiley & Sons
ISBN: 1118866355
Category : Technology & Engineering
Languages : en
Pages : 528
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Book Description
Green Aviation is the first authoritative overview of both engineering and operational measures to mitigate the environmental impact of aviation. It addresses the current status of measures to reduce the environmental impact of air travel. The chapters cover such items as: Engineering and technology-related subjects (aerodynamics, engines, fuels, structures, etc.), Operations (air traffic management and infrastructure) Policy and regulatory aspects regarding atmospheric and noise pollution. With contributions from leading experts, this volume is intended to be a valuable addition, and useful resource, for aerospace manufacturers and suppliers, governmental and industrial aerospace research establishments, airline and aviation industries, university engineering and science departments, and industry analysts, consultants, and researchers.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 456
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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: United States. Congress. Senate. Select Committee on Small Business
Publisher:
ISBN:
Category : Legislative hearings
Languages : en
Pages : 1442
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Book Description
Author:
Publisher:
ISBN:
Category : Fossil fuels
Languages : en
Pages : 878
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Book Description
Author: United States. Congress. Senate. Select Committee on Small Business
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 572
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Book Description
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 538
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Book Description
Author: Technology Partnerships Canada
Publisher:
ISBN:
Category : Business & Economics
Languages : en
Pages : 60
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Book Description
The objective of this technology framework is to provide guidance to Technology Partnerships Canada (TPC) stakeholders on the factors to be considered in the development, submission, and evaluation of TPC cases. Necessary to this process is the definition of technology phases & technologies that are considered key to the continuing contribution of the aerospace & defence sector to the achievement of Canada's national strategic objectives. The document identifies the sector's technology development cycle and defines terminology for each of its phases in order to clarify those phases where TPC emphasis is to be placed. It then identifies & summarizes technologies considered to be of strategic importance in 11 separate areas such as design & analysis, avionics, aerodynamics, propulsion, structural materials, aircraft systems, modelling, advanced manufacturing, and space systems.
