Search for dissertations about: "Aircraft engine"
Showing result 11 - 15 of 62 swedish dissertations containing the words Aircraft engine.
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11. Towards Environmentally Friendly Aero Engines
Abstract : Since the introduction of subsonic jet driven commercial aircraft, incremental improvements in overall efficiency has been a driving requirement as well as a selling argument for the engine industry. The historical overall efficiency improvement is the result of continuous advances in aerodynamic design, increase of overall pressure ratios, turbine inlet temperatures and propulsive efficiencies in parallel with the development of stronger and lighter materials. READ MORE
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12. Analysis of concepts to reduce the environmental impact of aviation
Abstract : The average yearly increase in passenger kilometres travelled by air has been 5.8 % over the last 40 years. Fortunately the fuel consumption has not increased at the same rate. Over the same time period the average increase in fuel sold has been 2. READ MORE
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13. Laser Spectroscopic Techniques for Combustion Diagnostics Directed Towards Industrial Applications
Abstract : In the work presented in the thesis, different laser spectroscopic techniques were utilized for measurement of species concentrations, as well as for surface thermometry. Experiments were conducted in various combustion environments, ranging from laboratory burners to truck-sized internal combustion (IC) engines, gas turbine combustors and a full-size aircraft turbofan engine. READ MORE
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14. Thermometry Using Laser-Induced Emission from Thermographic Phosphors: Development and Applications in Combustion
Abstract : Temperature is a fundamental thermodynamic parameter used to describe physical, chemical and biological processes. Much effort is made to measure temperature accurately in a wide variety of applications, making temperature one of the most extensively measured parameters. READ MORE
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15. Aviation and the Environment- Evaluation of High Propulsive Efficiency Engines
Abstract : There has been more than a tenfold increase in passenger kilometers traveled over the last 40 years. The highest rate of growth today is in developing countries such as China and India. These countries also have the two largest populations in the world. READ MORE