Sökning: "low-current"

Visar resultat 1 - 5 av 22 uppsatser innehållade ordet low-current.

  1. 1. Extraction and optimization for modeling ofdesalination by capacitive deionization

    Kandidat-uppsats, KTH/Skolan för teknikvetenskap (SCI)

    Författare :Max Rehman Linder; Zeshen Bao; [2023]
    Nyckelord :Desalination; Capacitive Deionization; ELC model; Adsorption; Simulation;

    Sammanfattning : Water scarcity is set to become a big challenge in the 21st century and more efficient desalinationtechnologies will be needed in the future. In this project, one desalination method called capacitivedeionization (CDI) is explored and we used a model called the ELC model to simulate CDI withComsol. LÄS MER

  3. 2. Analysis of high-voltage low-current DC/DC converters for electrohydrodynamic pumps

    Kandidat-uppsats, Uppsala universitet/Institutionen för elektroteknik

    Författare :Sigge Axelsson; Jonas Gartner; Axel Stafström; [2023]
    Nyckelord :high-voltage; low-current; low-power; DC DC; DC-DC; high-gain; converter; electrohydrodynamic pump; EHD; transformerless converter; Royer-based converter; resonant Royer oscillator; Cockroft-Walton voltage multiplier; CWVM; voltage multiplier; series-connected positive-negative voltage multiplier; SPNVM; planar air-core transformer; planar transformer; high-freqency Royer-based converter; overcurrent protection; LT8331; gallium nitride; GaN; planar PCB-integrated transformers;

    Sammanfattning : Moving parts cause vibrations and tend to wear out. In applications where maintenance is complicated, solutions without moving parts are therefore advantageous. Electrohydrodynamic pumps are such a solution. Instead of mechanical propulsion, they use strong electric fields to induce movement in a dielectric cooling liquid. LÄS MER

  4. 3. Tests of Series Arcing and Arc Fault Detection Devices in Low Voltage Systems

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Ghazal Al Qabbani; [2021]
    Nyckelord :;

    Sammanfattning : Unwanted electrical arcs are a concern in fire and electrical equipment safety. Arcs in electrical systems can be categorized into two main groups, traditionally called: Series and parallel arc faults, or more recently called low current and high current arc faults. LÄS MER

  5. 4. The Afterlife of Clothes

    Master-uppsats, KTH/Skolan för arkitektur och samhällsbyggnad (ABE)

    Författare :Hanna Wahlberg; [2020]
    Nyckelord :consumption production waste textile recycling urban industrial;

    Sammanfattning : The clothes and textiles sold in Sweden is mostly manufactured in countries outside of the EU. The production requires large areas of land and vast amount of water. The environmental impact is big during the production phase in terms of water usage, chemicals and transports. LÄS MER

  7. 5. Isolated Single-Stage Interleave Resonant PFC Rectifier with Active and Novel Passive Output Ripple Cancellation Circuit

    Master-uppsats, Uppsala universitet/Institutionen för elektroteknik

    Författare :Abidemi Oluremilekun Eleyele; [2020]
    Nyckelord :single-stage AC DC converter; bridgeless power factor correction PFC rectifier; active passive ripple cancellation; zero current switching ZCS ; zero voltage switching ZVS ; Electric vehicle EV charger; LLC;

    Sammanfattning : With the increasing demand for fast, cheaper, and efficient power converters come the need for a single-stage power factor correction (PFC) converter. Various single-stage PFC converter proposed in the literature has the drawback of high DC bus voltage at the input side and together with the shift to wide bandgap switches like GaN drives the converter cost higher. LÄS MER