Author : National Research Council
Publisher : National Academies Press
Page : 229 pages
File Size : 49,59 MB
Release : 2003-02-14
Category : Nature
ISBN : 0309168708
This report provides a critical review of toxicologic, epidemiologic, and other relevant data on jet-propulsion fuel 8, a type of fuel in wide use by the U.S. Department of Defense (DOD), and an evaluation of the scientific basis of DOD's interim permissible exposure level of 350 mg/m3
Author : National Academies of Sciences, Engineering, and Medicine
Publisher : National Academies Press
Page : 123 pages
File Size : 21,22 MB
Release : 2016-08-09
Category : Technology & Engineering
ISBN : 0309440998
The primary human activities that release carbon dioxide (CO2) into the atmosphere are the combustion of fossil fuels (coal, natural gas, and oil) to generate electricity, the provision of energy for transportation, and as a consequence of some industrial processes. Although aviation CO2 emissions only make up approximately 2.0 to 2.5 percent of total global annual CO2 emissions, research to reduce CO2 emissions is urgent because (1) such reductions may be legislated even as commercial air travel grows, (2) because it takes new technology a long time to propagate into and through the aviation fleet, and (3) because of the ongoing impact of global CO2 emissions. Commercial Aircraft Propulsion and Energy Systems Research develops a national research agenda for reducing CO2 emissions from commercial aviation. This report focuses on propulsion and energy technologies for reducing carbon emissions from large, commercial aircraftâ€" single-aisle and twin-aisle aircraft that carry 100 or more passengersâ€"because such aircraft account for more than 90 percent of global emissions from commercial aircraft. Moreover, while smaller aircraft also emit CO2, they make only a minor contribution to global emissions, and many technologies that reduce CO2 emissions for large aircraft also apply to smaller aircraft. As commercial aviation continues to grow in terms of revenue-passenger miles and cargo ton miles, CO2 emissions are expected to increase. To reduce the contribution of aviation to climate change, it is essential to improve the effectiveness of ongoing efforts to reduce emissions and initiate research into new approaches.
Author : Meredith Colket
Publisher :
Page : 0 pages
File Size : 27,47 MB
Release : 2021
Category : Fuel switching
ISBN : 9781624106033
In summarizing the results obtained in the first five years of the National Jet Fuel Combustion Program (NJFCP), this book demonstrates that there is still much to be learned about the combustion of alternative jet fuels.
Author : Mohammad Hossein Keshavarz
Publisher :
Page : 0 pages
File Size : 23,72 MB
Release : 2018
Category : Jet planes
ISBN : 9781536143119
In recent years, it has been important for scientists and chemical industries to introduce and develop new liquid fuels as jet fuels and propellants for propulsion purposes. Different aspects should be considered for the selection of a good candidate such as combustion performance, desired physical properties, noncarcinogenic and less toxicity. New synthetic hydrocarbon fuels with favorable combustion performance and physical properties have been considered as desirable jet fuels. They can be used in aircrafts such as military jets because of their higher volumetric energy density. A liquid-propellant rocket uses liquid propellants for propulsion. Liquid propellants should have the desirable properties of high energy density per unit mass, high specific impulse, and short ignition delays. Hypergolic propellants as important classes of liquid propellants are characterized by spontaneous reaction upon fuel and oxidizer mixing and high energy yield. Moreover, they should be relatively ignitable and have a small ignition time delay. This book reviews some efforts that have been done to introduce new candidates to replace conventional hydrazine fuels because they are acutely toxic and suspected carcinogens, costly safety precautions and handling procedures are required. This book reviews the latest advances in liquid fuels, which may be used as jet fuels and liquid propellants. Important properties for assessment of a suitable liquid are demonstrated. This book can be used for graduate students in the field of chemistry and chemical engineering. It may also be useful for scientists and researchers who work on the development of new liquid fuels with high performance as well as those that are noncarcinogenic or have less toxicity.
Author : Saeed Farokhi
Publisher : John Wiley & Sons
Page : 444 pages
File Size : 29,23 MB
Release : 2020-01-21
Category : Technology & Engineering
ISBN : 1119414997
A comprehensive review of the science and engineering behind future propulsion systems and energy sources in sustainable aviation Future Propulsion Systems and Energy Sources in Sustainable Aviation is a comprehensive reference that offers a review of the science and engineering principles that underpin the concepts of propulsion systems and energy sources in sustainable air transportation. The author, a noted expert in the field, examines the impact of air transportation on the environment and reviews alternative jet fuels, hybrid-electric and nuclear propulsion and power. He also explores modern propulsion for transonic and supersonic-hypersonic aircraft and the impact of propulsion on aircraft design. Climate change is the main driver for the new technology development in sustainable air transportation. The book contains critical review of gas turbine propulsion and aircraft aerodynamics; followed by an insightful presentation of the aviation impact on environment. Future fuels and energy sources are introduced in a separate chapter. Promising technologies in propulsion and energy sources are identified leading to pathways to sustainable aviation. To facilitate the utility of the subject, the book is accompanied by a website that contains illustrations, and equation files. This important book: Contains a comprehensive reference to the science and engineering behind propulsion and power in sustainable air transportation Examines the impact of air transportation on the environment Covers alternative jet fuels and hybrid-electric propulsion and power Discusses modern propulsion for transonic, supersonic and hypersonic aircraft Examines the impact of propulsion system integration on aircraft design Written for engineers, graduate and senior undergraduate students in mechanical and aerospace engineering, Future Propulsion Systems and Energy Sources in Sustainable Aviation explores the future of aviation with a guide to sustainable air transportation that includes alternative jet fuels, hybrid-electric propulsion, all-electric and nuclear propulsion.
Author : N. A. Cumpsty
Publisher : Cambridge University Press
Page : 326 pages
File Size : 22,43 MB
Release : 2003-08-14
Category : Technology & Engineering
ISBN : 9780521541442
This is the second edition of Cumpsty's excellent self-contained introduction to the aerodynamic and thermodynamic design of modern civil and military jet engines. Through two engine design projects, first for a new large passenger aircraft, and second for a new fighter aircraft, the text introduces, illustrates and explains the important facets of modern engine design. Individual sections cover aircraft requirements and aerodynamics, principles of gas turbines and jet engines, elementary compressible fluid mechanics, bypass ratio selection, scaling and dimensional analysis, turbine and compressor design and characteristics, design optimization, and off-design performance. The book emphasises principles and ideas, with simplification and approximation used where this helps understanding. This edition has been thoroughly updated and revised, and includes a new appendix on noise control and an expanded treatment of combustion emissions. Suitable for student courses in aircraft propulsion, but also an invaluable reference for engineers in the engine and airframe industry.
Author : Mark L. Witten
Publisher : CRC Press
Page : 341 pages
File Size : 40,9 MB
Release : 2010-07-30
Category : Medical
ISBN : 1420080210
Currently serving as a resource for the National Center for Toxological Research in their work with the Gulf Coast oil spill, this book presents current research conducted primarily by the airforce on the toxic effects of JP-8 jet fuel on the pulmonary, immune, dermal, and nervous systems. In all, the book considers 13 toxicology studies
Author : National Research Council
Publisher : National Academies Press
Page : 158 pages
File Size : 40,53 MB
Release : 1997-09-18
Category : Technology & Engineering
ISBN : 0309058333
The reduction of the fire hazard of fuel is critical to improving survivability in impact-survivable aircraft accidents. Despite current fire prevention and mitigation approaches, fuel flammability can overwhelm post-crash fire scenarios. The Workshop on Aviation Fuels with Improved Fire Safety was held November 19-20, 1996 to review the current state of development, technological needs, and promising technology for the future development of aviation fuels that are most resistant to ignition during a crash. This book contains a summary of workshop discussions and 11 presented papers in the areas of fuel and additive technologies, aircraft fuel system requirements, and the characterization of fuel fires.
Author : Saeed Farokhi
Publisher : John Wiley & Sons
Page : 1040 pages
File Size : 31,94 MB
Release : 2021-09-02
Category : Technology & Engineering
ISBN : 1119718678
AIRCRAFT PROPULSION
Author : Ahmed F. El-Sayed
Publisher : CRC Press
Page : 1524 pages
File Size : 27,29 MB
Release : 2017-07-06
Category : Science
ISBN : 1466595183
Aircraft Propulsion and Gas Turbine Engines, Second Edition builds upon the success of the book’s first edition, with the addition of three major topic areas: Piston Engines with integrated propeller coverage; Pump Technologies; and Rocket Propulsion. The rocket propulsion section extends the text’s coverage so that both Aerospace and Aeronautical topics can be studied and compared. Numerous updates have been made to reflect the latest advances in turbine engines, fuels, and combustion. The text is now divided into three parts, the first two devoted to air breathing engines, and the third covering non-air breathing or rocket engines.
