Sökning: "turbine efficiency"
Visar resultat 1 - 5 av 204 avhandlingar innehållade orden turbine efficiency.
1. Engine Optimized Turbine Design
Sammanfattning : The focus on our environment has never been as great as it is today. The impact of global warming and emissions from combustion processes become increasingly more evident with growing concerns among the world’s inhabitants. The consequences of extreme weather events, rising sea levels, urban air quality, etc. LÄS MER
2. Synchronous generator and frequency converter in wind turbine applications : system design and efficiency
Sammanfattning : This report deals with an electrical system for variable-speed wind powerplants. It consists of a synchronous generator, a diode rectifier and athyristor inverter. LÄS MER
3. Flow Control and Shape Optimization of Intermediate Turbine Ducts for Turbofan Engines
Sammanfattning : Demands on improved efficiency, reduced emissions and lowered noise levels cause a strive towards high by-pass ratios of commercial turbofan engines. This results in an increased radial offset between the high- and low-pressure turbines. Thus the design of the intermediate turbine duct connecting the two turbines becomes more challenging. LÄS MER
4. Evaluation, Experience and Potential of Gas Turbine Based Cycles with Humidification
Sammanfattning : Gas turbines, in simple and combined cycle, are common and economically profitable on the power generating market today. Several new cycles have been proposed as future competing technologies, but all studies about these cycles have, so far, been paperwork. LÄS MER
5. Humidification Processes in Gas Turbine Cycles
Sammanfattning : The global climate change caused by emissions of greenhouse gases from combustion processes has been recognized as a continuously growing problem and much research focuses on improving the environmental performance of gas turbines. The potential of improving gas turbine component efficiencies has become smaller each decade and therefore, thermodynamic cycles have become more interesting for power producing units. LÄS MER