Sökning: "corrosion inhibitors"

Visar resultat 1 - 5 av 9 uppsatser innehållade orden corrosion inhibitors.

  1. 1. Experimental Study of Metallic Surfaces Exposed to Cavitation

    Master-uppsats, KTH/Materialvetenskap

    Författare :Marcio Freitas De Abreu; [2018]
    Nyckelord :cavitation; cylinder liner; lamellar gray cast iron; erosion pitting; graphite class; cavitation;

    Sammanfattning : Cylinder liners in heavy-duty truck engines are subjected to intense vibrations and may sustain damage from the cavitation of bubbles in the coolant liquid, with some risks of leakage and engine breakdown. An ultrasonic oscillating probe was used to simulate the pitting rates and behavior of samples extracted from cylinder liners, which are made of grey cast iron, with differences in surface roughness, glycol and inhibitor content in coolant, coolant temperature and graphite flake class; bainitic microstructures were also tested. LÄS MER

  3. 2. Kvantitativ analys av organiska syror i kylvätska

    Uppsats för yrkesexamina på grundnivå, Högskolan i Borås/Akademin för textil, teknik och ekonomi

    Författare :Emma Henriksson; Martin Holm; [2017]
    Nyckelord :engine coolant; antifreeze; heat exchange fluid; HPLC; method development; organic acids; reversed phase and; UV-detector; kylvätska; HPLC; metodutveckling; organiska syror; UV-detektor; reversed phase;

    Sammanfattning : Volvo Cars är ett välkänt företag som säljer bilar över hela världen. Idag skickar Volvo Cars sin kylvätska till leverantörer för analys. Processen är komplicerad och tar mycket tid. Det finns ett intresse hos Volvo Cars att själva kunna analysera kylvätskan. LÄS MER

  4. 3. Corrosion in the coolant circuit of Pansarterrängbil 203

    Kandidat-uppsats, KTH/Materialvetenskap

    Författare :Olivia Danielsson; Sonja Jonsson; Ida Mildenberger; [2016]
    Nyckelord :corrosion; galvanic corrosion; coolant circuit; water heater; aluminum; automotive; SEM; LOM; military;

    Sammanfattning : The military vehicle, Pansarterrängbil 203 (PATGB 203) demonstrates a fault. There are some components in a coolant circuit that fail due to corrosion while others are unaffected. One of the affected components that will be investigated in this report is the water heater. LÄS MER

  5. 4. Alternativa etanolbaserade köldbärare med korrosionsinhibitorer i bergvärmesystem

    Kandidat-uppsats, KTH/Energiteknik

    Författare :Marcus Ohlin; [2015]
    Nyckelord :;

    Sammanfattning : Ground source heat pumps are very popular in the Nordic countries. The method of exchanging heat with the ground is based on the principle that a secondary fluid is circulating through a U-pipe borehole heat exchanger inserted into energy wells. LÄS MER

  7. 5. Alternativa etanolbaserade köldbärare med korrosionsinhibitorer i bergvärmesystem

    Kandidat-uppsats, KTH/Energiteknik

    Författare :Isac Gustafsson; [2015]
    Nyckelord :;

    Sammanfattning : Ground source heat pumps are very popular in the Nordic countries. The method of exchanging heat with the ground is based on the principle that a secondary fluid is circulating through a U-pipe borehole heat exchanger inserted into energy wells. LÄS MER