Sökning: "increment of efficiency"

Visar resultat 1 - 5 av 21 uppsatser innehållade orden increment of efficiency.

  1. 1. Assessing impacts of climate change on the energy and hygrothermal performance of detached houses in Sweden

    Master-uppsats, Lunds universitet/Institutionen för bygg- och miljöteknologi; Lunds universitet/Avdelningen för Energi och byggnadsdesign

    Författare :Najma Habibullah; Busra Duran; [2023]
    Nyckelord :Detached houses; Hygrothermal performance; Energy performance; Extreme weather conditions; Climate change; Technology and Engineering;

    Sammanfattning : Climate change is one of the most significant challenges that building sector is confronting. For example, Climate change and associated extreme events are posing a significant challenge for the building sector. Buildings should be prepared to withstand the climate changes and extreme weather that will happen in the future. LÄS MER

  3. 2. Saturated planar laser-induced fluorescence using sinusoidal intensity modulation

    Kandidat-uppsats, Lunds universitet/Förbränningsfysik; Lunds universitet/Fysiska institutionen

    Författare :Klara Lozani Gerdhem; [2023]
    Nyckelord :fluorescence; fluorophore; LIF; PLIF; saturated LIF; saturated PLIF; structured light; Physics and Astronomy;

    Sammanfattning : Saturated laser-induced fluorescence (saturated LIF) has been the topic of some research, however mainly regarding laser diagnostic methods conducted on flames. A few papers have discussed saturated LIF with the purpose of producing saturation curves of different fluorescent elements. LÄS MER

  4. 3. Simulation based optimizing of fog mesh structures for enhanced fog collection

    Master-uppsats, KTH/Teknisk mekanik

    Författare :Jiawei Miao; [2022]
    Nyckelord :;

    Sammanfattning : Water scarcity has been an increasing problem in many places around the world. According to the World Resources Institute, in 2019 nearly 2.6 billion people which takes a third of the world's population live in the area with 'high water scarcity', with 1.7 billion people in 17 countries living under 'extreme water scarcity'. LÄS MER

  5. 4. Investigation of switching power losses of SiC MOSFET : used in a DC/DC Buck converter

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

    Författare :André Xavier Svensson; [2022]
    Nyckelord :Switching power losses; Metal Oxide Semiconductor Field Effect Transistor; Silicon carbide; Synchronous Buck converter; Wide Band Gap; Double Pulse Test; Efficiency; Temperature; Växlande effektförluster; Fälteffekttransistor; Kiselkarbid; Synchronous Buck omvandlare; Wide Band Gap; Double Pulse Test; Verkningsgrad; Temperatur;

    Sammanfattning : All DC/DC converter products include power electronic circuits for power conversion.It is important to find an efficient way for power conversion to reduce power losses and reduce the need for cooling and achieve environmentally friendly solutions.The use of semiconductor switches of wide band gap type is a solution to the problem. LÄS MER

  7. 5. Modelling the growth of Pinus sylvestris L. monocultures in Sweden depending on the absorbed light

    Master-uppsats, SLU/Southern Swedish Forest Research Centre

    Författare :Mateusz Grzeszkiewicz; [2022]
    Nyckelord :climate change; forest modelling; light use efficiency; photosynthetically active radiation; Scots pine;

    Sammanfattning : Stand growth models are an important aid in contemporary sustainable forest management as a major planning and decision-making tool. However, climate change influencing growth conditions worldwide is a challenge to commonly used empirical models as they do not provide enough flexibility, which can result in inaccurate predictions and thus wrong decisions and sub-optimal results. LÄS MER