Essays about: "Single-phase"
Showing result 1 - 5 of 60 essays containing the word Single-phase.
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1. Development and Analysis of Small Signal DQ-Frame Model for Low Frequency Stability of Train Converters
University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)Abstract : In order to meet the increasing demand for sustainable transportation, trains need to run with tighter schedules, more departures and more trains in depot. Multiple trains in depot has been linked to low frequency instability at many locations around the world. READ MORE
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2. Investigation of coarse-grid CFD approach for nuclear engineering application
University essay from KTH/FysikAbstract : In this thesis, an innovative coarse grid CFD approach is developed that aims toexploit the capabilities of sub-channel codes and CFD methods while overcoming theirlimitations. In the approach, a very coarse mesh is implemented in the CFD softwareOpenFOAM and a new wall treatment, based on the traditional concept of the wallfunction, is applied to the wall boundary conditions of the domain to take into accountthe low resolution of the grid which does not allow to effectively capture the effect of thesolid walls on the thermo-hydraulics of the flow. READ MORE
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3. Early Stage Design of a Prefilmer at Siemens Energy : Numerical and Experimental Methodology
University essay from Linköpings universitet/Mekanisk värmeteori och strömningsläraAbstract : Design of atomizers for gas-turbine purposes are an important ordeal. The per-formance of the atomizer directly impacts the efficiency of the gas-turbine, andconsequently, the energy extracted from the turbine. Furthermore, the design ofthe atomizer can have an impact on reducing toxic emissions. READ MORE
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4. Design and Simulation of a 10kW High-Efficiency Dual Active Bridge Converter
University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)Abstract : The EU has proposed an ambitious goal to achieve widespread E-mobility in both the electrical and commercial sectors. To accomplish this, a substantial number of DC fast-charging stations must be built. READ MORE
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5. Design and processing of metal-organic frameworks for greenhouse gas capture
University essay from Uppsala universitet/Nanoteknologi och funktionella materialAbstract : Anthropogenic emission of greenhouse gases has long been suspected to contribute to global warming and climate change. Most greenhouse gases are emitted in a mixture, so efficient methods and materials to separate and capture the gases are in demand in order to reduce emissions. READ MORE