Sökning: "centrifugal pump"

Visar resultat 11 - 15 av 23 uppsatser innehållade orden centrifugal pump.

  1. 11. De-polymerization and Purification of Kraft Lignin Utilizing the Liquid-Lignin Phase

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Martin Sundin; [2017]
    Nyckelord :ALPHA; SLRP; Liquid-Lignin; Lignin; Technology and Engineering;

    Sammanfattning : The effects of global warming are apparent and the work towards a sustainable future is underway. In order to reduce the environmental impact caused by the transportation sector, a transition from fossil fuels to those based on renewable resources are important. Using agricultural land to produce raw materials, e.g. LÄS MER

  3. 12. Energikartläggning av blekeriet på Domsjö Fabriker AB

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för tillämpad fysik och elektronik

    Författare :Anna Lindgren; [2016]
    Nyckelord :;

    Sammanfattning : The aim of this Master Thesis was to investigate the energy flows in the bleachery at Domsjö Fabriker AB and to create a calculation model that could be used in the future for energy audits. The main goal with this energy audit was to identify energy savings suggestions. LÄS MER

  4. 13. Maintenance optimisation of centrifugal pumps in a European refinery: : A case study

    Master-uppsats, KTH/Industriell produktion

    Författare :Andrei Laquet; [2015]
    Nyckelord :;

    Sammanfattning : Maintenance has gained credit over the past decades. The oil and gas industry requires efficient maintenance programs due to the hazardousness surrounding the industry. Crude oil margins are also dropping and maintenance yields high controllable costs. Therefore, safety and economy are the driving forces of maintenance optimisation. LÄS MER

  5. 14. Development of pump geometry for engine cooling system

    Master-uppsats, KTH/Kraft- och värmeteknologi

    Författare :Joel Björkman; [2015]
    Nyckelord :pump engine cooling pump curve impeller;

    Sammanfattning : The engine cooling system is an important part of the engine’s performance to achieve optimum temperatures in cylinders and provide cooling to subsystems. With increasing emission demands from legislation, further development of the cooling system is necessary. LÄS MER

  7. 15. Experimental Transient Behaviour Characterisation of Induction Motor fed by Variable Frequency Drives for Pump Applications

    Uppsats för yrkesexamina på avancerad nivå, KTH/Elektrisk energiomvandling

    Författare :Amer Halilovic; [2014]
    Nyckelord :Variable Frequency Drive; Centrifugal Pump; Induction Motor; Volts-per-Hertz Control; Speed Control; Overdimensioning; Frekvensomriktare; centrifugalpump; asynkronmotor; skalärkontroll; hastighetskontroll; överdimensionering;

    Sammanfattning : The use of variable frequency drives in centrifugal pump applications has raised the question of how to select a drive. Clogging obstacles in waste water applications create unknown transient loads for the pump system. A sudden load increase occurrence can clog the pump if the drive cannot supply enough current to reach the motor’s torque demand. LÄS MER