Essays about: "Ångturbiner"

Showing result 1 - 5 of 10 essays containing the word Ångturbiner.

1. 1. Numerical analysis of aerodynamic damping in a transonic compressor

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : Vincenzo Stasolla; [2019]
   Keywords : transonic compressor; flutter; vibration; CFD; transonic kompressor; fladder; vibration; CFD;

   Abstract : Aeromechanics is one of the main limitations for more efficient, lighter, cheaper and reliable turbomachines, such as steam or gas turbines, as well as compressors and fans. In fact, aircraft engines designed in the last few years feature more slender, thinner and more highly loaded blades, but this trend gives rise to increased sensitivity for vibrations induced by the fluid and result in increasing challenges regarding structural integrity of the engine. READ MORE

3. 2. Crack propagation calculations in non-elastic metals

   University essay from Luleå tekniska universitet/Material- och solidmekanik

   Author : Máren Ingá Baer; [2018]
   Keywords : crack propagation; fracture mechanics;

   Abstract : It is important to know the lifespan of a component, thus services can be planed. At Siemens Industrial Turbomachinery AB (SIT AB) develop and produce gas and steam turbines, the turbines are heavily strained by thermal and centrifugal forces during their life span which lead to cracking. READ MORE

4. 3. Perspectives for Power Generation fromIndustrial Waste Heat Recovery

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : Fanny Blanquart; [2017]
   Keywords : ;

   Abstract : This thesis work was carried out at Siemens in Germany in the department of Steam Turbines, and aims to raise awareness of the potential for broader deployment of waste heat recovery (WHR) from industrial processes for power generation. Technologies available to recover heat are presented and sorted out according to the features of the heat source. READ MORE

5. 4. SENSITIVITY STUDIES ON THE THERMAL MODEL OF A SOLAR STEAM TURBINE

   University essay from KTH/Energiteknik

   Author : LUCA CALIANNO; [2016]
   Keywords : Steam turbine; start-up; transient; differential expansion; Nusselt correlation; heat transfer.; Ångturbiner; uppstart; transienter; differentiell expansion; Nusselt korrelation; värmeöverföring.;

   Abstract : Förr i tiden, ångturbiner har främst använts för baskraft operation. Numera med den ökade utvecklingen av varierande förnyelsbara är samma ångturbiner motstå högre cykliska operativa system med mer frekvent uppstarter och snabbt föränderliga laster. READ MORE

6. 5. Validation of one-dimensional loss models for axial gas turbines

   University essay from Lunds universitet/Institutionen för energivetenskaper

   Author : Kim Hirsch; Ramin Moghadam; [2016]
   Keywords : gas turbine; loss model; turbine; Technology and Engineering;

   Abstract : Denna masteruppsats är ett sammarbete mellan Siemens Industrial Turbomachi- nery (SIT) och Lunds Tekniska Högskola (LTH). Uppsatsen berör validering av ett nytt in-house verktyg på SIT som heter ”Mean Line Tool” (MLT), framför allt sekundärförlustmodellerna som verktyget använder. READ MORE