Essays about: "hydraulic diameter."

Showing result 1 - 5 of 26 essays containing the words hydraulic diameter..

  1. 1. The design of a hydraulic equalizer bar for the feeding mechanism on forest harvester heads

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Arvid Söderlund; [2023]
    Keywords : Harvester; Harvester head; Komatsu Forest; Hydraulics; Equalizer bar; Parallellstag; Stag; Skogsmaskin; Skördare; Aggregat; Skog;

    Abstract : Due to the importance of a correct tree placement and the wear that occurs to equalizer bars inharvester heads, Komatsu Forest AB in Umeå was interested if the bar could be replaced with ahydraulic system. According to Komatsu, the problems were that the equalizer bars that are responsible forsynchronizing the delimbing knives and feeding mechanism add weight, take up space and have atendency to break before their life expectancy. READ MORE

  3. 2. Jet Grout Bottom Plug in Deep Excavations : Numerical Analysis of a Tunnel Project

    University essay from KTH/Jord- och bergmekanik

    Author : Ida Schjelderup; [2022]
    Keywords : Jet grouting; jet grout bottom plug; cut-and-cover tunnel; tunnel design;

    Abstract : This master thesis has investigated the performance of a deep excavation with a jet grout bottom plug used to prevent bottom heave and hydraulic uplift failure. The concept of a jet grout plug as a structural and sealing component in a specific case was studied, namely one of the tunnel sections of The West Link tunnel project in Gothenburg. READ MORE

  4. 3. Co-Simulation Development for Improved Cavitation Predictions in Oil-Hydraulics Systems : An investigation into the cavitating flow behavior of repetitive water hammers.

    University essay from Linköpings universitet/Mekanisk värmeteori och strömningslära

    Author : Thisal Mandula Sugathapala; Twan Bakker; Rahul Gudur Suresh; Aryan Delir; [2022]
    Keywords : co-simulation; water hammer; cavitation;

    Abstract : Numerical modeling of cavitation using computational software is a highly pursued topic of research due to its impact in different industrial sectors. While some industrial applications such as wastewater treatment and mineral processing are known to advantageously use this phenomena, it remains an unwanted process in others where it is known to induce vibration, reduce performance and cause structural damage. READ MORE

  5. 4. Efficiency Analysis of a Wave Energy Converter Penstock

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

    Author : Péter László Bondár; Felix Myrsten; [2021]
    Keywords : Efficiency Analysis; Machine Design; Optimisation; Penstock; Wave Energy Converter; Effektivitetsanalys; Maskinkonstruktion; Optimering; Tilloppstub; Vågkraftverk;

    Abstract : Novige develops a wave energy converter (WEC) concept that utilizes wind-generated wave to create electricity. The system uses a float and a hydraulic cylinder to pump water up to a turbine, similar to an inverted hydro power plant. READ MORE

  6. 5. INFLUENCE OF CARBON CONTENT AND COOLING CONDITIONS ON THE THERMAL CONDUCTIVITY AND TENSILE STRENGTH OF HIGH SILICON LAMELLAR GRAPHITE IRON

    University essay from Jönköping University/JTH, Material och tillverkning

    Author : Gokul Ram; Vishnu Harikrishnan; [2020]
    Keywords : Lamellar cast iron; hypereutectic; eutectic; hypoeutectic; carbon; silicon; carbon equivalent; cooling rate; dendrites; graphite flakes; specific heat capacity; thermal expansion coefficient; thermal diffusivity; thermal conductivity; tensile strength; hydraulic diameter.;

    Abstract : Much study has been carried out to determine the properties of Lamellar Graphite Iron (LGI) or grey iron and their relations to factors such as the cooling rate, the dendrite morphology, the pouring temperature, and so on. However, there hasn’t been much comprehensive study on the properties of LGI outside the generally used and accepted composition, with 1 to 3% Silicon. READ MORE