Sökning: "pressure ratio"

Visar resultat 1 - 5 av 209 uppsatser innehållade orden pressure ratio.

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. Morphological study of PS/PMMA-matrix on glass, related to vapour pressure, mass-fraction, and size

   Kandidat-uppsats, Karlstads universitet/Institutionen för ingenjörs- och kemivetenskaper (from 2013)

   Författare :Gustav Larsson; [2023]
   Nyckelord :organic solar cells; polymer; morphology; film; AFM;

   Sammanfattning : The objective of this study is to observe how changing amount or ratio between dried mixes of poly-methyl-methacrylate and poly-styrene change the surface appearance, and how the results might inform future design of Organic photovoltaic cells, whom are based on polymer mixtures and heavenly dependent on the arrangement of polymers. An atomic force microscope was used on glass surfaces coated in a poly-methyl-methacrylate/poly-styrene matrix and dried from either dichloromethane or ethyl-acetate to determine surface appearance. LÄS MER

4. 3. 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

5. 4. Financial Strategies of Real Estate Companies in Sweden : Navigating Economic Cycles

   Master-uppsats, KTH/Fastighetsföretagande och finansiella system

   Författare :Olivia Nygren; Malin Lagerholm; [2023]
   Nyckelord :Real Estate; Economic Downturn; Financial Strategy; Fastigheter; Konjunkturnedgång; Finansiell strategi;

   Sammanfattning : The real estate sector has been heavily impacted by rising inflation and subsequent interest rate increases. This is placing pressure on all real estate companies with higher levels of debt. The rising interest rates are leading to increased costs and making it more challenging for these companies to refinance their loans. LÄS MER

7. 5. Hydrogen storage systems : Methodology and model development for hydrogen storage systems performance evaluation based on a transient thermodynamic approach

   Master-uppsats, Mälardalens universitet/Akademin för ekonomi, samhälle och teknik

   Författare :Kreshnik Margaritari; [2023]
   Nyckelord :Hydrogen; Hydrogen storage system; Hydrogen filling process; Hydrogen storage system operation; Hydrogen storage system design; Hydrogen fast filling; Hydrogen tank modelling;

   Sammanfattning : The overall performance of a hydrogen storage system can be affected by various parameters, such as operation and design parameters, but also by the state of the hydrogen contained inside the storage tanks. In this work, a methodology is developed to evaluate the state of the hydrogen during the filling process and its impact on the overall system performance under variable operation conditions and design parameters. LÄS MER