Sökning: "body cooling"

Visar resultat 1 - 5 av 33 uppsatser innehållade orden body cooling.

  1. 1. 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

  3. 2. Prestanda hos värmeväxlande system : Undersökning och utvärdering av värmeväxlare för medicinskt bruk

    M1-uppsats, KTH/Medicinteknik och hälsosystem

    Författare :Sara Weman; [2022]
    Nyckelord :Sepsis; Bacteraemia; Heat exchange; Heat transfer; Blood; Milk; Sepsis; Bakteriemi; Värmeväxling; Värmeöverföring; Blod; Mjölk;

    Sammanfattning : Detta examensarbete har genomförts på uppdrag av företaget Sangair i syfte att bidra med kunskap i deras utveckling av en produkt ämnad att behandla sepsis med hjälp av ozon. Sepsis är en av de ledande dödsorsakerna i världen och behandlas idag primärt med antibiotika. LÄS MER

  4. 3. Mitigating the Urban Heat Island Effect in a Local Context : how wind and vegetation regulate temperatures during summer, with an example from the grounds of Karlstad Central Hospital, Sweden

    Master-uppsats, SLU/Dept. of Landscape Architecture, Planning and Management (from 130101)

    Författare :Patricia Kirkhorn; [2022]
    Nyckelord :GIS; Envi-met; microclimate; climate change; vegetation; wind; city planning; urban heat island; thermal comfort;

    Sammanfattning : Climate change is the cause of more weather extremes. Cities' dense configuration, heat absorbing surfaces and low amount of vegetation leads to higher temperatures within cities known as the urban heat island effect (UHI). LÄS MER

  5. 4. Single Sided Bonding of Cylindrical Battery Cells

    Master-uppsats, KTH/Industriell produktion

    Författare :Xu He; [2021]
    Nyckelord :cylindrical battery cell; single side bonding; ultrasonic wire bonding; cylindrisk battericell; enkelsidig bindning; ultraljudstrådsbindning;

    Sammanfattning : Over the last ten years the Li-ion battery cells plays a significant role in the world’s decarbonization and reduction of CO2 emission. They are widely applied in many industries, such as consumer electronics, transportation and energy storage industries. LÄS MER

  7. 5. Reversing the flow of heat in system of initially correlated qubits

    Kandidat-uppsats, Lunds universitet/Matematisk fysik; Lunds universitet/Fysiska institutionen

    Författare :Giovanni Francesco Diotallevi; Peter Samuelsson; Faraj Bakhshinezhad; [2021]
    Nyckelord :Qubits; Cooling; Heat Flow; Physics and Astronomy;

    Sammanfattning : The Second Law of Thermodynamics is considered to be one of the most fundamental and important laws of Physics. Both Clausius and Kelvin reformulated the Second Law as statements concerning the behaviour of two communicating systems, set to interact at different temperatures. LÄS MER