Sökning: "optimum pressure"

Visar resultat 1 - 5 av 44 uppsatser innehållade orden optimum pressure.

1. 1. 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

3. 2. Influence of supercritical carbon dioxide (scco2) dyeing parameters on color fastness of polyester fabric dyed with disperse dye : A study towards minimizing the energy consumption of polyester (pet) fabric dyeing with azo disperse dye

   Master-uppsats, Högskolan i Borås/Akademin för textil, teknik och ekonomi

   Författare :Tapas Das; [2023]
   Nyckelord :Supercritical fluid dyeing; polyester PET fabric; coranger orange PE3330; color fastness; ideal dyeing conditions; eco-friendly;

   Sammanfattning : Amid growing environmental concern and continuous depletion of natural resources (such as water), the textile industry is constantly searching for sustainable production process. Traditional dyeing processes, notorious for their enormous water consumption, have led society to search alternative dyeing method. LÄS MER

4. 3. The perfect wing, The perfect trade-off? : What implements the main selection pressure on wing morphology?

   Master-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildning

   Författare :Emme MacDonald; [2023]
   Nyckelord :Bird; wing morphology; migration; habitat; aspect ratio; wing loading;

   Sammanfattning : Selection pressure is a constant force in evolution, pushing birds and their wings towards an optimal shape and structure, were increasing performance, and minimizing the costs is central. But even though the science of aerodynamics can provide calculations of the optimal construction for the wing in different situations this rarely directly correspond to what is observed in nature. LÄS MER

5. 4. Implementation of Reaction Kinetics into Reactor Model Followed by Validation of the Reactor Model

   M1-uppsats, Lunds universitet/Kemiteknik (CI)

   Författare :Rebecka Svensson; [2021]
   Nyckelord :Modeling; Reaction kinetics; Chemical Engineering; Technology and Engineering;

   Sammanfattning : This master thesis project was performed in collaboration with Johnson Matthey. Johnson Matthey is a worldwide company working with sustainable technologies. The site in Perstorp, where this work was performed, focus on formaldehyde production. In order to continuously improve chemical processes, simulation and modeling are advantageous tools. LÄS MER

7. 5. Undertray Design and Development Procedure with CFD : An Optimization Study of Different UndertrayDesigns with CFD Computations

   Master-uppsats, KTH/Strömningsmekanik och Teknisk Akustik

   Författare :Aaron Poutiainen; [2021]
   Nyckelord :;

   Sammanfattning : Race car aerodynamics has played a vital part to improve lap times over the years of motor racing. Having good road adhesion with slick tires and aerodynamic downforce will increase the vehicles maximum lateral force and thus higher cornering speeds can be achieved. LÄS MER