Sökning: "högtemperatur"

Visar resultat 1 - 5 av 11 uppsatser innehållade ordet högtemperatur.

1. 1. Additives in a steam engine to decrease friction : Friction testing of solid lubricants in powder form

   Master-uppsats, Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik (from 2013)

   Författare :Viktor Lange; [2023]
   Nyckelord :Tribology; friction; wear; steam; steam engine; ranotor; invencon; invencon AB; steel; contact mechanics; hexagonal boron nitride; molybdenum disulfide; tungsten disulfide; lubricants; solid lubricants; Tribologi; friktion; nötning; ånga; ångmotor; stål; kontaktmekanik; smörjning; smörjmedel; fasta smörjmedel;

   Sammanfattning : This thesis aims to investigate the coefficient of friction between steel on steel contacts with the addition of solid lubricants such as h-BN, WS2, MoS2 in powder form, in dry conditions and wet conditions. More specifically, the purpose is to enhance the sliding between the piston rings and cylinder block in a modern high temperature steam engine developed by RANOTOR. LÄS MER

3. 2. EBSD Investigation of High-Temperature Magnetite from Apatite-Iron-Oxide Deposits: Implications for the Formation of Giant Kiruna-Type Deposits

   Master-uppsats, Uppsala universitet/Mineralogi, petrologi och tektonik

   Författare :Jens Henriksson; [2022]
   Nyckelord :Kiruna-type deposit; electron backscattered diffraction; crystal settling; Fe-O systematics; crystal alignment;

   Sammanfattning : European iron production is to a large extent dependant on massive Kiruna type apatite-iron ore deposits. In this contribution, high-temperature magnetite samples from apatite-iron-oxide deposits are investigated by means of Electron Backscattered Diffraction. However, the origin of Kiruna-type deposits is still unresolved. LÄS MER

4. 3. Design a Three-Stage Pipelined RISC-V Processor Using SystemVerilog

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

   Författare :Ziyan He; [2022]
   Nyckelord :RISC; RISC-V; ISA; SystemVerilog; RTL simulation; RV32IM; CPI; RISC; RISC-V; ISA; SystemVerilog; RTL simulering; RV32IM; CPI;

   Sammanfattning : RISC-V is growing in popularity as a free and open RISC Instruction Set Architecture (ISA) in academia and research. Also, the openness, simplicity, extensibility, and modularity, among its advantages, make it more and more used by designers in industry. The aim of this thesis is to design an open-source RISC-V processor. LÄS MER

5. 4. A Pre-Assessment related to Refractory Waste Management in Sweden : Pre-study of the performance of MgO-C bricks made from recycled MgO-C refractory materials for use in steel production

   Master-uppsats, KTH/Materialvetenskap

   Författare :Pranav Jagtap; [2021]
   Nyckelord :MgO-C brick; Refractory; Recycling; Reusing; Swedish Steel industries; MgO-C tegel; Eldfast; Återvinning; Återanvändning; Svensk stålindustri;

   Sammanfattning : Steel industries consume refractory materials on a large scale. High temperature resistant refractory materials are essential for linings of the steelmaking vessels, to protect them from corrosive environments, high temperatures, molten steels and slags during transportation and steelmaking operations. LÄS MER

7. 5. Design of a Carbon Fiber Thermocouple for Elevated Temperature Measurements

   Master-uppsats, KTH/Materialvetenskap

   Författare :Marcus Holmström; [2020]
   Nyckelord :Thermocouple; Carbon Fiber; Thermoelectrical; Electromotive Force; Polyacrylonitrile; Rayon; Termoelement; Kolfiber; Termoelektrisk; Elektromotorisk spänning; Polyacrylonitrile; Viskos;

   Sammanfattning : Thermocouples are one of the most commonly used instruments for thermometry at elevated  temperatures. As of today, there are only a few types of thermocouples that are built to withstand a temperature beyond 1600 °C,however they usually have a temperature measurement uncertainty of around 1% at these high temperatures. LÄS MER