Essays about: "viable systems"

Showing result 21 - 25 of 357 essays containing the words viable systems.

  1. 21. Preliminary Design of a 30 kN Methane-Oxygen-powered Electric-Pump-fed Liquid Rocket Propulsion System

    University essay from Luleå tekniska universitet/Rymdteknik

    Author : Vikramjeet Das; [2023]
    Keywords : rocket engine; liquid rocket; methalox; electropump; LRPS; LPRE; liquid methane; electric pump feed system;

    Abstract : The design of a liquid rocket propulsion system, unlike that of a standalone system, is intertwined with the overall development of a number of associated systems and is influenced by a multitude of conditions and considerations: from the requirements needed to accomplish the mission to the rationalizations involved behind the development of each rocket system and/or component. In my thesis, the preliminary design of a “new generation” 30 kN rocket engine driven by an electric pump feed system and running on liquid methane and liquid oxygen is performed. READ MORE

  3. 22. Electric Passenger Aviation in Sweden : An analysis from the perspective of the Swedish aviation industry

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Madeleine Cromnier; Erik Södergren; [2023]
    Keywords : electric aviation; Swedish aviation industry; socio-technical systems; socio- technical transitions; multi-level perspective.; elflyg; svensk flygindustri; socio-tekniska system; socio-tekniska omställningar; multi-level perspective;

    Abstract : Transitions to more sustainable technologies and processes are a largely discussed topic that concerns several, if not all, global industries. This thesis studies the novel technology of electric passenger aviation as a sustainable option in the aviation industry. READ MORE

  4. 23. Sensorless Control of Synchronous Reluctance Machines and Permanent Magnet Synchronous Machines for Pump Applications

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Erik Lindberg; [2023]
    Keywords : Variable speed drives; Sensorless control; Luenberger observer; Synchronous reluctance machine; Permanent magnet synchronous machines; Vector control; Model reference adaptive system; Variabel hastighetsreglering; Sensorlös reglering; Luenberger observatör; Synkron reluktansmaskin; Permanentmagnetmaskin; Vektorreglering; Adaptiv modelreferensreglering;

    Abstract : Energy efficiency in electric machines is both environmentally and economically important. Water pumps with an integrated Variable Frequency Drive (VFD) and a Permanent Magnet Synchronous Machine (PMSM) have challenged the status quo of the Induction Machine (IM) for water pumps. READ MORE

  5. 24. Dynamic modelling of electricity arbitrage for single-family homes : Assessing the cost-effectiveness of implementing Energy Storage and Demand-Side Load Management.

    University essay from Linnéuniversitetet/Institutionen för byggd miljö och energiteknik (BET)

    Author : Ahmed Ali; [2023]
    Keywords : Electricity arbitrage trading; intraday electricity market; energy storage system; demand-side load management; single-family homes; Nord Pool; building performance simulation IDA Indoor Climate and Energy ; financial modelling.;

    Abstract : In the context of electricity, arbitrage trading involves taking advantage of existing price variations within electricity markets. The report conducted financial modelling for energy storage systems and demand-side load management for electricity arbitrage trading in single-family homes. READ MORE

  6. 25. Sustainable Entrepreneurship Intention among Business Students of Developed and Developing Countries : A Comparative Study of Sweden and Pakistan

    University essay from Jönköping University/JIBS Entrepreneurship Centre

    Author : Ali Awais; [2023]
    Keywords : Sustainable Entrepreneurship Intentions; Business Students;

    Abstract : This study compares the sustainable entrepreneurial objectives of business students in Sweden and Pakistan. The study investigates the effect of action planning, action knowledge, cultural values, educational systems, availability of resources, and business environment on entrepreneurship intention using action regulation theory. READ MORE