Sökning: "drilling hydraulic"

Visar resultat 21 - 25 av 36 uppsatser innehållade orden drilling hydraulic.

  1. 21. Uncovering Hidden Needs in Ground Engineering: Case Study of LKAB Wassara

    Master-uppsats, KTH/Maskinkonstruktion (Inst.)

    Författare :Igor Kordas; [2016]
    Nyckelord :Hidden needs; customer satisfaction; ground engineering; Outtalade behov; kundnöjdhet; grundläggnning;

    Sammanfattning : This thesis stemmed from the need for better understanding of the ground engineering market by LKAB Wassara - an innovative company that developed a novel technology of hydraulic DTH-drilling; and from the insight that achieving customer satisfaction through fulfilment of hidden needs in the construction industry is a promising yet challenging endeavour.  The challenge addressed in this thesis is twofold: firstly, the conventional market studies often lead to the hidden customer needs being lost, while these needs are important for product innovation; and secondly, there is a lack of case studies exploring the explicit or hidden needs in the construction business that might be partially explained by complexity of interrelations of products, services and stakeholders inherited to the construction market. LÄS MER

  3. 22. CFD analysis of nozzle effect on jet formation

    Master-uppsats, KTH/Mekanik

    Författare :Mustafa GÜDÜCÜ; [2015]
    Nyckelord :;

    Sammanfattning : This project is concerned with CFD simulations of jets issued from elliptical nozzles. The investigated jet flow in this project is turbulent flow emanating from microscopic nozzles into a combustion chamber. LÄS MER

  4. 23. Development of new rotation concept for rock drills

    Master-uppsats, KTH/Maskinkonstruktion (Inst.)

    Författare :Akepati Bhaskar Reddy; [2015]
    Nyckelord :hydraulic motor; rock drill; rotation; hydraulisk motor; borrmaskin; vridning;

    Sammanfattning : In blast hole drilling, it is desirable to be able to drill as close as possible to the edge of the tunnel. The minimum distance from the edge is defined by the radial size of the rockdrill. Most of the rock drills used today have a rotation motor that rotates an axel parallel to the shank, which further rotates the shank through a gear set. LÄS MER

  5. 24. Geotermisk fjärrvärme i Gunsta

    Kandidat-uppsats, SLU/Dept. of Energy and Technology

    Författare :Caroline Krouthén; Andreas Lundgren; Per Mandfloen; Karl-Oskar Sandberg; Johanna Sjöberg-Högerås; Johan Thorell; Svante Wärnsberg Monie; [2014]
    Nyckelord :geotermi; geotermisk energi; fjärrvärme; Gunsta; förnybar; värmekälla; värmeproduktion;

    Sammanfattning : Gunsta is situated about 10 km east of Uppsala. Today there are plans to establish 1000 new households in Gunsta before year 2030. The required energy for heating houses and water would be distributed via a district heating system, which also includes 200 existing residences. The annual required energy, according to this study, would be 16. LÄS MER

  7. 25. Reglering av fracking i EU - en aktörsanalys

    Master-uppsats, KTH/Historiska studier av teknik, vetenskap och miljö

    Författare :Oscar Stenström; [2014]
    Nyckelord :fracking; shale gas; fracking; hydraulisk spräckning; skiffergas;

    Sammanfattning : Hydraulisk spräckning – i debatten omnämnd som fracking – är en kontroversiell energiteknik som väckt starka känslor. Genom att borra horisontella cementrör i skifferformationer och sedan påföra en kemikaliespetsad vattenblandning under tryck har bunden gas kunnat utvinnas. LÄS MER