Search for dissertations about: "Gas path analysis"
Showing result 1 - 5 of 37 swedish dissertations containing the words Gas path analysis.
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1. Transport in Oxides Studied by Gas Phase Analysis
Abstract : The transport in oxides is studied by the use of gas phase analysis (GPA). An experimental method to identify transported species of gases and their contribution to the overall transport of gases in oxides and an experimental method to evaluate the parameters diffusivity, concentration, permeability of gases in oxides and effective pore size in oxides are developed, respectively. READ MORE
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2. Estimation of Thrust and Health Parameters for Jet Engines
Abstract : An advanced turbofan engine control system would benefit from an accurate thrust and engine performance estimate. Unfortunately, there is to date no reliable in-flight thrust measurement sensors available. READ MORE
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3. On model based aero engine diagnostics
Abstract : Maintenance and diagnostics play a vital role in the aviation sector. This is especially true for the engines, being one of the most vital components. Lack of maintenance, or poor knowledge of the current health status of the engines, may lead to unforeseen disruptions and possibly catastrophic effects. READ MORE
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4. Analysis of Temporal and Spatial Variations in Atmospheric Water Vapor Using Microwave Radiometry
Abstract : The amount of atmospheric water vapor is highly variable in both time and space. In this thesis some aspects of the variations in the atmospheric water vapor are treated. READ MORE
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5. Analysis and Evaluation of Innovative Aero Engine Core Concepts
Abstract : Turbofan engines, which power the majority of the modern aircraft today, have achieved such a high maturity that small improvements of the engine performance requires a large investment. More innovative technologies, including those related to the engine cores, become increasinglyattractive due to the high fuel price in recent years as well as the strict regulations on emissions. READ MORE