Essays about: "Iron losses"

Showing result 16 - 20 of 45 essays containing the words Iron losses.

  1. 16. Thermal Analysis of a Sea Wave Generator

    University essay from KTH/Elkraftteknik

    Author : Ezequiel Quijada; [2017]
    Keywords : sea wave power generator; magnet overheating; demagnetization; heat transfer; conjugate heat transfer; thermal resistance; Comsol Multiphysics; cooling technique;

    Abstract : Wave power has been increasing the interest of many researchers looking for alternative sustainable energy sources since the reserves have proved to be capable of satisfying a considerable percentage of the world´s energy demands. This option has not been adopted as a sustainable source since there are some challenges in the process of designing a low cost device that converts the kinetic energy of the waves into electric energy and that could still be efficient enough to be competitive against other options. READ MORE

  3. 17. Geometallurgical approach to understand how the variability in mineralogy at Zinkgruvan orebodies affects the need for copper activation in the bulk rougher-scavenger flotation

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Ivan Belo Fernandes; [2017]
    Keywords : Geometallurgy; Zinkgruvan; Zn-Pb flotation; ore variability; mineral chemistry; pyrrhotite; magnetic separation;

    Abstract : Zinkgruvan is a Pb-Zn-Ag deposit located in south-central Sweden, owned and operated by Lundin Mining. The ore is beneficiated by a collective-selective flotation circuit, recovering both galena and sphalerite in a bulk rougher-scavenger flotation stage and later on separating them into two final products. READ MORE

  4. 18. Designing and Maximizing Switch-Mode Efficiency of MODPSU, the Modular Power Supply

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Niclas Arndt; [2016]
    Keywords : DC DC; SMPS; optimization; power supply; Technology and Engineering;

    Abstract : This work is an investigation into practical design and loss minimization of DC/DC-switched power supplies, enabling cooler operation, smaller size, and additional or wider areas of use. There is an abundance of switch controller ICs on the market and a few of the manufacturers offer very sophisticated design tools that suggest operating parameters and grade components. READ MORE

  5. 19. Fe-Mo-oxide of spinel structure for methanol oxidation

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Maria Thulin; [2016]
    Keywords : iron molybdate catalyst; methanol oxidation; Fe-Mo-oxide; spinel structure; formaldehyde catalyst; chemical engineering; kemiteknik; Technology and Engineering;

    Abstract : The aim of this master thesis was to investigate a Fe-Mo-oxide catalyst of spinel structure for methanol oxidation to produce formaldehyde and determine if the spinel could be an alternative to the commercial Formox catalyst used today. This included firstly, synthesising the catalyst to get more knowledge of the formation of the structure and secondly, determine the activity, selectivity to formaldehyde and stability of the catalyst. READ MORE

  6. 20. Mechanical design of transverse flux linear generator for wave power : Mekanisk konstruktion av linjär transversalflödesgenerator för vågkraft

    University essay from KTH/Maskinkonstruktion (Inst.)

    Author : Erling Guldbrandzén; Manthan Shah; [2016]
    Keywords : ;

    Abstract : En transversalflödesgeneratortopologi skall användas för att generera elektricitet av havsvågor. Den huvudsakliga fördelen med detta koncept är dess låga förluster och att en högre kraftdensitet kan uppnås vid låga hastigheter. READ MORE