Sökning: "working fluids"

Visar resultat 1 - 5 av 32 uppsatser innehållade orden working fluids.

  1. 1. Design and investigation of a pulsating heat pipe for electronic cooling

    Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :Sulafa Hammad; [2023]
    Nyckelord :Pulsating heat pipes PHP ; Electronic cooling; two phase flow heat transfer; Technology and Engineering;

    Sammanfattning : The purpose of this study is to design and investigate a pulsating heat pipe device (PHP). A PHP is a two-phase flow heat transfer device which can handle high heat fluxes with passive internal flow. It is made of a continuous loop serpentine, partially filled with a working fluid that can cool systems, such as electronic devices. LÄS MER

  3. 2. Mötet med Ebola : Sjuksköterskans upplevelser av att vårda i en ebolaepidemi

    Kandidat-uppsats, Högskolan i Halmstad/Akademin för hälsa och välfärd

    Författare :Julia Emanuelsson; Denise Gustavsson; [2021]
    Nyckelord :Ebola; Experience; Nurse; Nursing; Ebola; Sjuksköterska; Upplevelse; Vårda;

    Sammanfattning : Bakgrund: Ebolaviruset är en smitta med hög dödlighet som sprids via kroppsvätskor vilket ger influensaliknande symtom och blödningar. Sjuksköterskan ansvarar för att kontinuerligt utveckla vården och vårda patienter utifrån ett helhetsperspektiv. Flertalet brister i vården utgjorde hinder för omvårdnaden. LÄS MER

  4. 3. Study of high flash point ethyl alcohol-based secondary fluids applied in Ground Source Heat Pumps systems

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Luis Enrique Carrion Domenech; [2019]
    Nyckelord :indirect refrigeration system; secondary fluid; flammability; alcohols; geothermal heat pump systems; properties.;

    Sammanfattning : Ethyl alcohol (ethanol) as secondary fluids is very popular as heat transfer fluid for indirect refrigeration system with ground source heat pump systems (GSHP) in several countries such as Sweden, Norway, Switzerland, Finland and other European countries. There have been several researches about the future ofthe refrigeration sector, refrigerants and refrigeration systems. LÄS MER

  5. 4. Techno-Economic Analysis of Organic Rankine Cycles for a Boiler Station : Energy system modeling and simulation optimization

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för fysik och astronomi

    Författare :Jamel Hudson; [2019]
    Nyckelord :Organic Rankine cycle; ORC; Working fluids; Boiler station; District heating system; Simulation model;

    Sammanfattning : The Organic Rankine Cycle (ORC) may be the superior cycle for power generation using low temperature and low power heat sources due to the utilization of high molecular mass fluids with low boiling points. They are flexible, simple, easy to operate and maintain, and offer many possible areas of applications including waste heat recovery and power generation from biomass, geothermal and even solar energy. LÄS MER

  7. 5. Towards Sustainability Using Minimum Quantity Lubrication Technique and Nano-Cutting Fluids in Metal-Machining Processes

    Master-uppsats, KTH/Industriell produktion

    Författare :Marta García Tierno; [2018]
    Nyckelord :Manufacturing; Machining; Turning; Minimum Quantity Lubrication; Nanoparticles.;

    Sammanfattning : Sustainable manufacturing is making products from processes which have minimal environmental impact, energy and resource efficient, economically viable and safe for consumers and society as whole. Achieving sustainability in manufacturing would mean infusing sustainability methods on product process and system level. LÄS MER