Sökning: "Pressure difference"

Visar resultat 1 - 5 av 562 uppsatser innehållade orden Pressure difference.

  1. 1. Increasing the diodicity of ceramic Tesla valves by exploiting the design freedom of additive manufacturing : A study in design optimizations of Tesla valves for ceramic 3D printing

    Master-uppsats, Uppsala universitet/Institutionen för materialvetenskap

    Författare :Udit Sharma; [2024]
    Nyckelord :additive; manufacturing; Tesla; valve; ceramic; 3D; printing;

    Sammanfattning : The work presented in this thesis was conducted at Uppsala University and at Fraunhofer IKTS, Dresden. The thesis aims to study design optimizations for increasing the diodicity and thereby performance of a Tesla valve, a type of “no moving parts” (NMP) valve, through design freedoms offered by ceramic additive manufacturing. LÄS MER

  3. 2. Techno-economic analysis and simulation of low temperature district heating networks

    Master-uppsats, Lunds universitet/Avdelningen för Energi och byggnadsdesign; Lunds universitet/Institutionen för arkitektur och byggd miljö

    Författare :Ilia Iarkov; [2023]
    Nyckelord :Low-temperature district heating; Modelica; BTES; LCA; LCC; Technology and Engineering;

    Sammanfattning : The continuous increase in global energy consumption has led to a greater focus on the energy required for heating buildings. This thesis presents a techno-economic model for analysing low-temperature district heating networks coupled with a geothermal heat source. LÄS MER

  4. 3. Outdoor Education and Teachers’ Subjective Well-Being : A correlational study on the well-being of Dutch primary school teachers and the use of outdoor education

    Magister-uppsats, Linköpings universitet/Institutionen för beteendevetenskap och lärande

    Författare :Anouk Meijer; [2023]
    Nyckelord :Outdoor education; subjective well-being; Dutch teachers; primary school;

    Sammanfattning : The present study among Dutch primary school teachers investigated the difference in teachers' subjective well-being (SWB) between teachers that used outdoor education (OE) and their peers. The influence of the duration and frequency of outdoor lessons has also been explored. A similar study showed that outdoor educators had a higher SWB. LÄS MER

  5. 4. An Evaluation Study of Leak Testing Technologies for Watertight Plate Heat Exchangers : Fast and sustainable leak testing technology for high energy efficiency products

    Uppsats för yrkesexamina på avancerad nivå, Blekinge Tekniska Högskola/Institutionen för matematik och naturvetenskap

    Författare :Fritjof Nilsson; Yanjun Peng; [2023]
    Nyckelord :Leak rate; Optimization; Pressure Decay; Vacuum Technology; Volume; Läckhastighet; Optimering; Tryckfall; Vakuum Teknologi; Volym;

    Sammanfattning : Background: One part of manufacturing a Plate Heat Exchanger (PHE) is to leak test them before delivery. Today, helium is used extensively in leak testing. How-ever, it is unsustainable to use helium in leak testing, because of its non-renewability and therefore becoming more and more expensive. Also, this technology is relatively complex. LÄS MER

  7. 5. Parametric investigation of a theoretical organic rankine cycle

    Uppsats för yrkesexamina på grundnivå, Mälardalens universitet/Akademin för ekonomi, samhälle och teknik

    Författare :Jim Wernersson; [2023]
    Nyckelord :;

    Sammanfattning : The energy resource waste heat or low-grade thermal energy is available in vast quantities. Tapping into this resource and converting it to electrical energy would not only reduce energy waste but also has the potential to eliminate greenhouse gas emissions. LÄS MER