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Visar resultat 1 - 5 av 27 uppsatser som matchar ovanstående sökkriterier.

  1. 1. Process Evaluation & Improvement

    Magister-uppsats, Högskolan i Halmstad/Akademin för företagande, innovation och hållbarhet

    Författare :Abdelrahman Alsallout; Khaja Kallungal Khalid; [2022]
    Nyckelord :Steam sterilizer; Sterilizers; Getinge; Heat recovery; Optimization; Improvement; Testing process.;

    Sammanfattning :  This thesis was conducted to analyze and investigate improvement methods for the testing process of steam sterilizers at Getinge AB.Getinge is a leading MedTech multinational company based in Sweden. Steam sterilizer is one of their prominent products. LÄS MER

  3. 2. Frost prediction in heat exchangers : The influence of relative humidity and outdoor temperature on frost formation in plate heat exchangers

    Master-uppsats, KTH/Betongbyggnad

    Författare :Emin Osmic; [2022]
    Nyckelord :;

    Sammanfattning : Frost in Mechanical Ventilation with Heat Recovery (MVHR) often occurs when indoor air is humid and outdoor air is cold. Warm and humid air from the rooms condensates or sublimates when it becomes cold enough, causing frost to grow in the heat exchanger channels. LÄS MER

  4. 3. Analys av kombinationen frånluftsvärmepump och fjärrvärme : En fallstudie i två flerbostadshus med olika tekniklösningar

    Kandidat-uppsats, Högskolan i Gävle/Energisystem och byggnadsteknik

    Författare :Shahzman Husso; [2022]
    Nyckelord :;

    Sammanfattning : In Sweden, district heating is the most common way to heat apartment buildings and premises. It is most common for properties to use district heating as the only heating source, but there are now trends in which more and more properties combine district heating with another energy source such as an exhaust air heat pump or geothermal heating. LÄS MER

  5. 4. Ventilation systems in Low Energy Houses: augmentation of mixing in a small-scale water model by generating resonance

    Magister-uppsats, Högskolan i Gävle/Energisystem och byggnadsteknik

    Författare :Borja Chocarro de Erauso; [2022]
    Nyckelord :Stratification; buoyancy frequency; resonance; mixing; passive house; water model;

    Sammanfattning : Some passive houses are provided a warm supply flow inlet coming from a mechanical ventilation system, creating issues of shortcut ventilation as a result of an originated density layer stratification, since the supplied warm air is confined to the ceiling level. In this way, there exist several complaints of thermal discomfort and poor indoor environmental quality in passive houses. LÄS MER

  7. 5. Material analysis for a rotating inlet valve : Sliding contact in an oil-free super-critical steam environment

    Uppsats för yrkesexamina på avancerad nivå, Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik (from 2013)

    Författare :Johan Samuelsson; [2022]
    Nyckelord :Mechanical carbon; graphite; carbon graphite; zirconia; steam engine; steam; tribology; friction; wear; stellite; nitronic 60; antimony; carbon; Ni-resist cast iron; waste heat recovery; rotating inlet valve; valve; Mekaniskt kol; gafit; ångmotor; ånga; tribologi; friktion; nötning; gjutjärn; roterande inloppsventil; ventil;

    Sammanfattning : In this thesis, the aim is to study possible tribo-materials for a rotating inlet valve and to find a suitable material combination for the contact. The valve is part of a modern oil-free and high temperature steam engine. Systematic material selection together with tribological tests and wear analyses are performed. LÄS MER