Sökning: "Dysa"

Visar resultat 1 - 5 av 8 uppsatser innehållade ordet Dysa.

  1. 1. Optimering Överhettarångsotning : Förstudie på Mälarenergi Block 6 för Heat managements systemlösning

    Uppsats för yrkesexamina på grundnivå, Mälardalens universitet/Akademin för ekonomi, samhälle och teknik

    Författare :Alexander Luukas; [2022]
    Nyckelord :Optimized steam sootblowing; superheaters; fouling; boiler efficiency; Waste fueled boiler; Overlapping sooting sequence; sotoptimering; ångsotning; överhettare; slaggning; överlappande sotblåsning; avfallspanna; pannverkningsgrad;

    Sammanfattning : The EU waste hierarchy includes energy recovery facilities where waste is used as fuel in combined heat- and powerplants. When waste is incinerated can the thermal energy be used in for example, district heating networks and or electricity generation. LÄS MER

  3. 2. Termisk utmattning : Hur termiska belastningar avgör livslängden på en Pressure seal-dysa och en bultad dysa

    Kandidat-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Josef Storm; [2021]
    Nyckelord :;

    Sammanfattning : Thermal fatigue is a major problem in various mechanical constructions. Details with strict boundary conditions subjected to cyclic thermal loadings experience significant internal stresses. Due to the capability of materials to expand or contract differently, components in separate materials, assembled, behave in their own ways. LÄS MER

  4. 3. Magnetic nozzle plume plasma simulation through a Particle-In-Cell approach in a 3-D domain for a Helicon Plasma Thruster. : A collaboration with REGULUS project T4i Technology for Propulsion and Innovation s.p.a.

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Cesare Vesco; [2021]
    Nyckelord :Particle-In-Cell PIC ; Monte Carlo; Helicon Plasma Thruster; SPIS; Magnetic Nozzle; collisions; cross sections.; Particle-In-Cell PIC ; Monte Carlo; Helicon Plasma Thruster; SPIS; Magnetiska Dysan; kollisions; cross sections.;

    Sammanfattning : Recent advances in plasma-based propulsion systems have led to the development of electromagnetic Radio-Frequency (RF) plasma generation and acceleration systems, called Helicon Plasma Thrusters (HPT). One of the pioneer companies developing this new type of space propulsion is T4i Technology for Propulsion and Innovation s.p.a. LÄS MER

  5. 4. Modelling coaxial jets relevat to turbofan jet engines

    Master-uppsats, KTH/Mekanik

    Författare :Asuka Gabrielle Pietroniro; [2016]
    Nyckelord :;

    Sammanfattning : Simulations of subsonic turbulent coaxial hot jets were conducted on two types ofunstructured grids within the framework of STAR-CCM+. The study case is based on atypical airliner turbofan engine model with a core nozzle and a fan nozzle, having a bypassratio of five. LÄS MER

  7. 5. Konstruktion av infästning till dysa

    Kandidat-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Victor Lie Gustavsson; [2014]
    Nyckelord :duct; pod; rolls royce; design; Dysa; konstruktion; pod; rolls royce; fartyg;

    Sammanfattning : The goal of this thesis is to design an attachment between a duct and a pod. A pod is what could be compared to an outboard engine for larger vessels. The pod is placed on the outside of the ship’s hull and can rotate 360 ̊. LÄS MER