Sökning: "Energimetoden"
Hittade 5 uppsatser innehållade ordet Energimetoden.
1. Computation of Acoustic Wave Propagation Under Water
Master-uppsats, KTH/Matematik (Avd.)Sammanfattning : In this thesis we look at acoustic wave propagation under water. We look in particular at waves generated by a point source and what happens with the propagation when we model the bottom as flat or as curvilinear. We assume the source to be working at a certain frequency and therefore we model this problem by solving the Helmholtz equation. LÄS MER
2. Numerical analysis of aerodynamic damping in a transonic compressor
Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)Sammanfattning : 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. LÄS MER
3. Primärenergifaktorer för fjärrvärme : Analys och beräkning av primärenergifaktorer för svensk fjärrvärme
Master-uppsats, Linköpings universitet/EnergisystemSammanfattning : I januari 2017 kom Boverket ut med nya förslag om regleringar gällande Sveriges realisering av primärenergifaktorer för uppvärmning i byggnader. Det innebär att de tidigare kraven om specifik energianvändning ersätts med en energiprestandaindikator som uttrycker en byggnads primärenergianvändning. LÄS MER
4. AERODYNAMIC FORCING & DAMPING COMPUTATIONS IN A TRANSONIC AXIAL TURBINE OF A TURBOCHANRGER USING TIME & FREQUENCY DOMAIN FLOW TRANSFORMATION TECHNIQUES
Master-uppsats, KTH/EnergiteknikSammanfattning : The current report discusses efficient and accurate numerical techniques to evaluate aerodynamic disturbance and damping forces based on investigations carried out at ABB Turbo System AG. The test turbomachine comprises a single-stage transonic axial turbine analysed with the fluid dynamic software ANSYS CFX 17.0 and post-processing tool Matlab. LÄS MER
5. En analys av foderkostnader i mjölkproduktion
Magister-uppsats, SLU/Dept. of EconomicsSammanfattning : .... LÄS MER