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Showing result 1 - 5 of 70 essays matching the above criteria.

  1. 1. Evaluating the Performance of Propulsion System Elements in an Aerospace Company

    University essay from KTH/Kraft- och värmeteknologi

    Author : David Fredouelle; [2023]
    Keywords : Turbomachinery; injector; test campaign; cryogenic; rocket engine; test bench; cold flow; Turbomaskin; injektor; testkampanj; kryogen; raketmotor; testbänk; kallt flöde;

    Abstract : This paper examines two examples of testing activities of sub-components of a 300kN methalox first-stage rocket engine developed by Pangea Aerospace, namely, theinjectors and the cryogenic pumps. One of the difficulties of these test campaignsis to evaluate the performances of these sub-components without using cryogenicpropellants and in conditions differing from flight conditions. READ MORE

  3. 2. Recovery of Dialcohol Cellulose using Micro- and Ultrafiltration Processes

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Lina Näslund; Gabriella Petersson; [2023]
    Keywords : Membrane filtration; Ultrafiltration; Microfiltration; Dialcohol cellulose; DAC; Bioplastics; Chemical engineering; Process design; Technology and Engineering;

    Abstract : The waste management and production of plastic play a concerning part in global warming and continues to have a negative effect on the environment. A promising strategy to address this challenge is to develop new sustainable materials, to replace current fossil-based plastics. READ MORE

  4. 3. Dimensionering av krisberedskap för elbilsladdning : en simuleringsstudie om krisberedskap för samhällsviktiga funktioner

    University essay from SLU/Dept. of Energy and Technology

    Author : Linus Christiansen; [2023]
    Keywords : krisberedskap; samhällsviktig verksamhet; personbilstransport; elfordon; elektrifiering;

    Abstract : With the rising number of electric vehicles in the Swedish vehicle fleet in combination with the rising electricity demand in the country, it begs the question. How should the electricity demand from charging of electric vehicles for vital societal functions be managed in a time of crisis without the support from the electric grid? This study focuses on the task of dimensioning reserve power systems for electric vehicle (EV) charging of parking spaces with 10, 20 and 30 cars. READ MORE

  5. 4. Discharge and Flame Chemistry in Lithium-Ion Battery Vent Gases : Investigations using Breakdown Experiments with Laser-Based Diagnostics

    University essay from Lunds universitet/Förbränningsfysik; Lunds universitet/Fysiska institutionen

    Author : Julia Lövgren; [2023]
    Keywords : PLIF; Laser-induced fluorescence; Laser-based diagnostics; Combustion; Lithium-ion battery; Physics and Astronomy;

    Abstract : Due to the environmental impact of fossil fuels, there has been a growing interest in lithium-ion batteries for electric vehicles. However, safety concerns have arisen regarding potential fire hazards associated with the vent gases of these batteries. READ MORE

  6. 5. Techno-economic analysis of large-scale production of e-methanol, via CO2- hydrogenation, in Power-to-X

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Jonathan Ahlbäck Ikonen; [2023]
    Keywords : Power-to-X; E-methanol; Hydrogen Production; CO2-hydrogenation; Methanol Synthesis; Decarbonisation; Chemical Engineering; Technology and Engineering;

    Abstract : Global levels of carbon emissions are constantly rising causing irreversible damages to ecosystems. The heavy transport sector and the industrial sector are responsible for large amounts of the emissions on a yearly basis. READ MORE