Essays about: "Turbomachinery"

Showing result 21 - 25 of 79 essays containing the word Turbomachinery.

  1. 21. Component State Prediction Based on Field Data : Master Thesis in Energy System Engineering

    University essay from

    Author : Linnea Johansson; [2017]
    Keywords : Gas Turbine; Prediction Model; Failure model; Field data; Environmental attributes; Weibull Distribution; Bayesian Statistics;

    Abstract : This master thesis is part of a big project at Siemens Industrial Turbomachinery (SIT) in Finspång aimed to use the operation experience available at SIT to predict the state of the gas turbines in general and some mechanical components in particular. The objective of the thesis is to continue the development of a prediction model based on experience data for estimations of a components lifetime. READ MORE

  3. 22. Pressure loss characterization for cooling and secondary air system components in gas turbines

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Frida Isaksson; [2017]
    Keywords : Gas turbines; cooling and secondary air system; pressure losses; discharge coefficient; minor loss; one-dimensional modelling;

    Abstract : There is a constant struggle to increase the efficiency in gas turbines, where one method is to have a higher inlet temperature to the turbine. Often, this results in temperatures higher than the critical temperature of the materials, which makes cooling of the components an important part of the turbine. READ MORE

  4. 23. Evolution of Cavity Tip Vortices in High-Pressure Turbines

    University essay from Uppsala universitet/Elektricitetslära

    Author : Albin Berglund; [2017]
    Keywords : CFD; turbomachinery; tip gap; fluid dynamics; cavity; rotor blade;

    Abstract : This degree project in applied physics studies the tip gap flows over the rotor blades of a high-pressure turbine. The rotor blade used in the study has an improved design that utilizes both a cavity tip and an uneven profiling to reduce turbine loss. READ MORE

  5. 24. Semantic and Physical Modeling and Simulation of Multi-Domain Energy Systems: Gas Turbines and Electrical Power Networks

    University essay from KTH/Elkraftteknik

    Author : Miguel Aguilera; [2017]
    Keywords : ;

    Abstract : The ITEA3 OpenCPS (Open Cyber-Physical System Model-Driven CertifiedDevelopment) project focuses on interoperability between the Modelica/UnifiedModeling Language (UML)/Functional Mock-up Interface (FMI) standards, improved(co-)simulation execution speed, and verified code generation. The project aims to developa modeling and simulation framework for cyber-physical and multi-domain systems. READ MORE

  6. 25. Investigation and Validation of Cooling Loss Models for Axial Gas Turbines

    University essay from KTH/Energiteknik

    Author : Jacob Händestam; Eric Jacobson; [2017]
    Keywords : axial gas turbines; one-dimensional; aerodynamics; cooling; losses; loss models; validation; axiella gas turbiner; endimensionell; aerodynamik; kylning; förluster; förlust modellering; validering;

    Abstract : Detta arbete behandlar undersökningen och valideringen av kylförlustmodellen i det nyligen framtagna programmet för endimensionell turbindesign, Mean Line Tool (MLT), skapat av Siemens Industrial Turbomachinery AB (SIT). Huvudsyftet är att undersöka med vilken noggrannhet MLT kan prediktera de extra aerodynamiska förluster som uppstår vid injektion av kylluft i en turbinpassage. READ MORE