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Jet propulsion

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Jet propulsion.

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Jet propulsion.

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This introductory 2005 text on air-breathing jet propulsion focuses on the basic operating principles of jet engines and gas turbines. Previous coursework in fluid mechanics and thermodynamics is elucidated and applied to help the student understand and predict the characteristics of engine components and various types of engines and power gas turbines. Numerous examples help the reader appreciate the methods and differing, representative physical parameters. A capstone chapter integrates the text material into a portion of the book devoted to system matching and analysis so that engine performance can be predicted for both on- and off-design conditions. The book is designed for advanced undergraduate and first-year graduate students in aerospace and mechanical engineering. A basic understanding of fluid dynamics and thermodynamics is presumed. Although aircraft propulsion is the focus, the material can also be used to study ground- and marine-based gas turbines and turbomachinery and some advanced topics in compressors and turbines.

Jet propulsion. --- Jet engines.

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The air transport sector is an integral part of economic growth and development. As the only available means of transporting passengers and goods across the globe within a single day, air transport provides critical connectivity between regions and better access to global markets. The creation of these benefits, however, leads to detrimental impacts on the environment and public health, including the emissions of climate-warming greenhouse gases (GHGs). This report emphasizes SAF as the main mitigation option that can most readily realize substantial GHG emission savings for air transport in the medium term (for example, the next 5 to 10 years). Sustainable aviation fuels (SAFs) is the term used by the aviation industry to describe a set of fuels that can be sustainably produced and generate lower CO2 emissions than conventional kerosene on a life-cycle basis. In the context of international regulation developed under the International Civil Aviation Organization (ICAO), SAF is defined more precisely as a renewable or waste-derived aviation fuel that meets a set of Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA) Sustainability Criteria, including a GHG emission reduction criterion. Finally, continued support for sustainable aviation-fuel research and development is needed. This should include the development of feedstock supply chains, new and innovative production technologies, and the development of innovative business models that increase the value of all products and by-products of SAF production operations. As the SAF production and distribution network becomes global, a deeper analysis is also needed to design the structure of biomass feedstock and refined fuel products transportation, whether distributed or centralized, in streamlined supply chains.

Airplanes --- Jet propulsion.