Search for dissertations about: "high-temperature corrosion"

Showing result 1 - 5 of 97 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. Sense, Actuate and Survive Ceramic Microsystems for High-Temperature Aerospace Applications

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Peter Sturesson; Uppsala universitet.; Försvarshögskolan.; [2018]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Teknisk fysik med inriktning mot mikrosystemteknik; Engineering Science with specialization in Microsystems Technology; High temperature; ceramics; microsystems; aerospace; sensors; thrusters; Försvarssystem; Military Technology; high temperature;

    Abstract : In aerospace applications, but also in manufacturing, mining, energy industry and natural hazards, high temperature, corrosion, erosion and radiation, challenge the performance and being of hardware.In this work, high-temperature co-fired ceramic (HTCC) alumina and platinum have been used for a range of devices intended for aerospace applications at up to 1000°C. READ MORE

  3. 3. High temperature galling influencing parameters and mechanisms

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Leonardo Pelcastre; Luleå tekniska universitet.; [2013]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Machine Elements; Maskinelement; Centre - Centre for High Performance Steel CHS ; Centrumbildning - Centrum för högpresterande stål CHS ;

    Abstract : Damage of forming tools at elevated temperatures is a major problem in metal forming processes such as hot stamping. Of special importance is the occurrence of adhesion and gross material transfer from the work-piece to the tool surface, a phenomenon known as galling. READ MORE

  4. 4. 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

  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