Essays about: "axial lines"

Showing result 1 - 5 of 10 essays containing the words axial lines.

  1. 1. Jet fragmentation in shaped charges

    University essay from KTH/Matematik (Avd.)

    Author : Joakim Ericson; [2022]
    Keywords : Shaped charges; numerical simulation; jet fragmentation; Riktad sprängverkan; numerisk simulering; strål-fragmentering;

    Abstract : This master thesis treats the numerical simulation of shaped charge jets and its fragmentation process. Shaped charges is a method to concentrate the effect of an explosive charge and penetrate deeply into a target due to a the formation of a jet with great penetration capabilities. READ MORE

  3. 2. Undocumented oil leakages : A study about stern tube seals and leakages

    University essay from Linnéuniversitetet/Sjöfartshögskolan (SJÖ)

    Author : Johan Lundberg; [2021]
    Keywords : Oil lubricated stern tube; Water lubricated stern tube; Oil; Oil leakage; Oil spill; stern tube seal; vessel; Oljesmord propellerhylsa; Vattensmord propellerhylsa; Olja; oljeutsläpp; Oljeläckage; propellerhylstätning; Fartyg;

    Abstract : The majority of the vessels in the commercial fleet utilize oil lubricated stern tubes. Unfortunately, this brings about a risk of oil leaking from the stern tube into the marine environment if the stern tube seal would become worn or damaged by foreign materials. Previous studies concluded that, on average, 2. READ MORE

  4. 3. Throughflow Study on Bleeding for Part Load Compressor Operation

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

    Author : Simon Hedkvist; [2019]
    Keywords : Compressor; Minimum environmental load; Aerodynamic; Throughflow; Stability; Bleeding;

    Abstract : The transition of the European energy grid to renewable energy sources is increasing the demand for back-up capacity with high flexibility. Current fossil fuel plants are continuously being forced into part load operation, where they are limited by pollution regulations that dictate their minimum environmental load, MEL. READ MORE

  5. 4. Analytical calculation model used when dimensioning timber poles used as overhead power line supports

    University essay from Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Author : Christopher Ekängen; [2018]
    Keywords : Calculation model; timber poles; overhead power line;

    Abstract : Overhead power lines are more reliable and cost effective than underground cables when it comes to power transmission. The overhead power lines are often suspended above ground using timber pole supports. READ MORE

  6. 5. Dual Band Circular Polarization Selective Structures for Space Applications

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

    Author : Johan Lundgren; [2016]
    Keywords : circular polarization selective structure; polarization selectivity; circular polarization; dual band; CPSS; satellite; space application; meander lines; Technology and Engineering;

    Abstract : Satellites are key components in today's modern world, but they are expensive to launch and the orbits are crowded. With use of a dual band circular polarization selective structure (CPSS) the satellites can be improved and the number of reflectors needed to carry out a certain task can be reduced. READ MORE