Sökning: "gas turbine design"

Visar resultat 6 - 10 av 99 uppsatser innehållade orden gas turbine design.

1. 6. CFD validation of a new gas turbinestage design with experimental data

   Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

   Författare :Claudia Florentina Balan; [2022]
   Nyckelord :;

   Sammanfattning : Gas turbines are present in two energy-intensive sectors: aviation and energy production. Improving the efficiency of gas turbines has a huge impact on the reduction of CO2 in the atmosphere, therefore many research groups are studying innovative strategies to improve the performance of these turbines. LÄS MER

3. 7. Turbofan Engine Modeling - For The Fighter Aircraft of The Future

   Master-uppsats, Linköpings universitet/Mekanisk värmeteori och strömningslära

   Författare :Aria Tahmasebi; [2022]
   Nyckelord :Turbofan; Engine; Turbofan engine; Gas turbine; Engine model; Engine modeling; Simulink; Simulink engine; Fighter aircraft; SAAB; Engine performance; Engine optimization;

   Sammanfattning : The demand for turbofan engine performance development is high in the military industry. However, to develop the engine, it is necessary to predict its performance, and engine testing is both time-consuming and costly. Therefore, simulation is an effective approach to predicting the engine’s performance. LÄS MER

4. 8. Experimental pressure loss analysis in a mini tube for a fully developed turbulent airflow. : Mini channels of lengths 22.5 mm to 150 mm in length with a constant diameter of 1.5 mm

   Master-uppsats, Linköpings universitet/Mekanisk värmeteori och strömningslära

   Författare :Soumen Ghosh; [2022]
   Nyckelord :Experimental fluid mechanics; Pressure drop; friction factor; Internal flow; fully developed flow; turbulent flow; Fluid mechanics; Ideal gas; Moody s chart; Additive manufacturing; compressible flow; turbine blade cooling; mini channel;

   Sammanfattning : The cooling systems in a gas turbine are especially important as the turbine blades and vanes are exposed to extreme temperatures. The relatively cool air is extracted from the compressors and fed to the turbines to cool the turbine blades. LÄS MER

5. 9. Geometrical Improvement of Fuel Nozzle Locations in the SGT-750 Gas Turbine : An investigation into fuel-air mixing in main channels 1 & 2

   Master-uppsats, Linköpings universitet/Mekanisk värmeteori och strömningslära

   Författare :Aryan Delir; [2022]
   Nyckelord :gas turbine engines; turbofan; combustion; SGT-750; flashback; hydrogen; natural gas; premixing; fuel-air mixing; computational fluid dynamics; CFD; turbulence modelling; NOx emission; lean premixed mixture;

   Sammanfattning : This study was conducted on SGT-750, which utilizes can type fourth generation DLE burner, developed at Siemens Energy AB, in Finspång, Sweden. The aim of this study is to obtain a flat fuel profile at the outlet of main channel 1 and main channel 2, demonstrating a proper mixing of fuel and air in the main channels leading to reducing local high-temperature points, and thus, reducing thermal NOx emissions. LÄS MER

7. 10. Meta-Modelling Based Design Optimization of Gas Turbine Blade Cooling Channels

   Master-uppsats, Linköpings universitet/Institutionen för datavetenskap

   Författare :Namita Sharma; [2021]
   Nyckelord :Machine Learning; Meta Model; Data Science;

   Sammanfattning : The aim of this paper is to investigate the use of Machine Learning to accelerate the processof gas turbine design optimization. Traditionally, the process simulations involved inoptimization are performed using commercial Computational Fluid Dynamics (CFD) softwaretools to find the best combinations of design parameters under specific conditionsand operational constraints. LÄS MER