Sökning: "matlab code"

Visar resultat 1 - 5 av 225 uppsatser innehållade orden matlab code.

  1. 1. Solving the incompressible Navier-Stokes equations in 3-D to model gas flow in a room

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Avdelningen för beräkningsvetenskap

    Författare :Fredrik Malmström; [2024]
    Nyckelord :;

    Sammanfattning : The thesis proposes to model the flow of gases in a room by solving the incompressible Navier-Stokes equations in three dimensions. The transportationof scalars such as temperature and concentration of CO2 is modeled by solving the advection-diffusion equation, and the effects of temperature on thevelocity is accounted for by employing the Boussinesq approximation. LÄS MER

  3. 2. Sensorless Field-Oriented Control and Position Estimation

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Industriell elektroteknik och automation

    Författare :Roberts Bitenieks; Lars Brander; [2023]
    Nyckelord :Sensorless rotor position estimation; High-frequency injection; Technology and Engineering;

    Sammanfattning : This master's thesis investigates the feasibility of implementing field-oriented control for a BLDC motor without relying on a position sensor from a standstill up to 400 rad/s. To achieve this objective, various approaches were used at standstill and high speeds. LÄS MER

  4. 3. Undersökning av stabilitet och noggrannhet hos kapacitans baserade fuktgivare i ett varierande klimat

    Kandidat-uppsats, Mittuniversitetet/Institutionen för data- och elektroteknik (2023-)

    Författare :Samuel Grufman; [2023]
    Nyckelord :NDIR; Relative Humidity Sensors; PCB; I2C; SPI; capacitance; NDIR; Relativ luftfuktighetsensor; PCB; I2C; SPI; kapacitans;

    Sammanfattning : Studien gick ut på att undersöka och ta fram relativa luftfuktighetsgivare som ger godkända mätvärden mellan [5%, 95%] relativ luftfuktighet med klimatkammare som referens. Med syftet att ersätta företagets givare i deras NDIR koldioxidsensor. LÄS MER

  5. 4. A Techno_Economic Feasibility Study of a Cryptocurrency Data Center Based on Renewable Energy : A feasibility Study of a Bitcoin Mining Farm Powered by Solar and Wind Energy.

    Master-uppsats, Uppsala universitet/Institutionen för samhällsbyggnad och industriell teknik

    Författare :Ali Wali; [2023]
    Nyckelord :Datacenter; Cryptocurrency; Mining Farm; Renewable Energy; Hybrid Energy System; Solar and Wind energy; Electricity Storage Medium; Feasibility Study; Financial Analysis; Reliability; Optimization.;

    Sammanfattning : The increasing popularity and improvements in the blockchain technology that offers decentralized communication and transactions in the form of cryptocurrencies that have now days a market value of almost 1.3 Trillion dollars and a huge potential to contribute to other fields such as health care, financial transactions, information technology, secure data exchange, data storage and many others has been pushing towards more integrating of renewable energies in this field. LÄS MER

  7. 5. Ride through Capability of medium-sized Gas Turbine Generators : Modelling and Simulation of Low Voltage Ride through Capability of Siemens Energy's medium-sized GTG and Low Voltage Ride through Grid Codes requirements at point of connection

    Master-uppsats, Umeå universitet/Institutionen för tillämpad fysik och elektronik

    Författare :Daniel Almailea; [2023]
    Nyckelord :Gas Turbines; Synchronous Machines; Generators; Turbogenerators; Fault Ride Through FRT ; Low Voltage Ride Through LVRT ; Grid Codes; Frequency; Inertia; Generator Inertia; Power System; MATLAB; Simulink; Modeling; Excitation System; Automatic Voltage Regulator AVR ; Saturation Curve; Capability Curve; Load Angle; Siemens Energy.;

    Sammanfattning : In order to reduce emissions and achieve sustainable energy systems, renewable energy is increasingly being integrated into the power grid. However, the integration of renewable energy into the grid poses several challenges, including maintaining a stable power supply under changing and unpredictable conditions. LÄS MER