Search for dissertations about: "High Temperature Corrosion"

Showing result 1 - 5 of 170 swedish dissertations containing the words High Temperature Corrosion.

  1. 1. High temperature corrosion in a biomass-fired power boiler Reducing furnace wall corrosion in a waste wood-fired power plant with advanced steam data

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Yousef Alipour; KTH.; [2013]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; High temperature corrosion; Waterwalls; Power plant corrosion; NOx reducing enviroments; Biomass; Waste wood; Thermodynamic calculation modelling; corrosion-resistance alloy; Furnace wall corrosion; Högtemperaturekorrosion; Eldstadsväggar; kraftverks korrosion; låg Nox mijöer; biomassa; returträ; Termodynamisk modellering; korrosionsbeständighet legering; eldstadskorrosion;

    Abstract : The use of waste (or recycled) wood as a fuel in heat and power stations is becoming more widespread in Sweden (and Europe), because it is CO2 neutral with a lower cost than forest fuel. However, it is a heterogeneous fuel with a high amount of chlorine, alkali and heavy metals which causes more corrosion than fossil fuels or forest fuel. READ MORE

  2. 2. High temperature corrosion during waste incineration characterisation, causes and prevention of chlorine-induced corrosion

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Peter Viklund; [2011]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; high temperature corrosion; waste incineration; superheater tubing; steel; alkali; chlorine; suphur; NATURAL SCIENCES Chemistry; NATURVETENSKAP Kemi;

    Abstract : Waste-fired boilers suffer severely from corrosion of critical components such as superheater tubes. In this work the high temperature corrosion of candidate superheater alloys have been investigated by detailed laboratory studies and controlled field exposures in full-scale boilers. READ MORE

  3. 3. The effect of microstructure and temperature on the atmospheric corrosion of Mg-Al alloys

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Mohsen Esmaily; [2013]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Atmospheric corrosion; microstructure; temperature; corrosion product; magnesium;

    Abstract : The NaCl-induced atmospheric corrosion behavior of the Mg-Al alloy AM50 produced by rheo-casting (RC) and high pressure die casting (HPDC) techniques was studied in the laboratory. The exposures were performed at 95% RH in the absence and presence of 400 ppm CO2 at 22, 4 and -4ºC. In parallel, 99.97%Mg was investigated as reference. READ MORE

  4. 4. High temperature corrosion of low-alloyed and stainless steels: mechanistic study of chlorine-induced corrosion

    University dissertation from ; Chalmers tekniska högskola; Gothenburg

    Author : Mercedes Andrea Olivas Ogaz; [2019]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; stainless steels; low-alloyed steels; pre-oxidation; High temperature corrosion; chlorine-induced corrosion;

    Abstract : The global demand on power generation is constantly increasing and so far, also its environmental impact. The environmental impact could primarily be directed to the power generation being based on fossil fuels, giving a net increase of CO2 to the atmosphere when combusted. READ MORE

  5. 5. High-Temperature Corrosion-Fatigue of Cast Alloys for Exhaust Manifolds

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Shengmei Xiang; KTH.; [2018]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; High temperature; corrosion fatigue; low-cycle fatigue; cast alloys; high-temperature oxidation; intermetallic phase; Materials Science and Engineering; Teknisk materialvetenskap;

    Abstract : The introduction of gas-driven Otto engine and the corresponding usage of bio-fuels in heavy-duty engines will render the exhaust atmosphere more corrosive and bring a higher working temperature to exhaust manifolds. The current service material, a ferritic ductile cast iron called SiMo51, will soon meet its upper temperature limit set by the ferrite-austenite transformation at 860ºC. READ MORE