Search for dissertations about: "tubing"

Showing result 1 - 5 of 25 swedish dissertations containing the word tubing.

  2. 1. Corrosion testing of heat exchanger tubing

    Author : Ulf Kivisäkk; KTH; []
    Keywords : corrosion testing; heat exchanger; stainless steels; general corrosion; immersion testing; activation; stress corrosion cracking; constant load; u-bends; relaxation; dewpoint corrosion;

    Abstract : Heat exchanger tubes are commonly made from stainless steel.In a heat exchanger both the process fluid and the cooling orheating media can be corrosive. It is therefore important to beable to select materials that do not suffer from corrosion.Current methods in this area, however, suffer from limitationsand shortcomings. READ MORE

  4. 2. Well Testing, Methods and Applicability

    Author : Jan-Erik Rosberg; Teknisk geologi; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; slug tests; well completion; re-injection; Well testing; pumping tests; injection tests; well development; pneumatic initiation; hydro-jetting; coiled tubing; tunnel lining; deep wells;

    Abstract : Well testing is widely used today in water wells, oil and gas wells, for geothermal applications, within civil engineering projects, thermal storage and CO2 storage. The overall testing goal is to verify the productivity from a well and/or for characterization of hydraulic and thermal properties, as well as the spatial limitations of an aquifer. READ MORE

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

    Author : Peter Viklund; Christofer Leygraf; Jan Froitzheim; Staffan Hertzman; Sweden Stockholm Swerea KIMAB AB; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; high temperature corrosion; waste incineration; superheater tubing; steel; alkali; chlorine; suphur; Chemistry; 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

  6. 4. Inflammatory responses in minor and major surgical procedures

    Author : Annette Schmidt; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; inflammatory response; surgery; cytokines; complement split products;

    Abstract : Surgical procedures promote an inflammatory response, correlating to the extent of the procedure performed and influencing outcome after surgery. The aims of the thesis were to investigate factors modulating the inflammatory response perioperatively and to evaluate cell salvage for indications so far not accepted in clinical practice. READ MORE

  7. 5. Organosiloxanes containing cyano groups for capillary chromatography

    Author : Karin Markides; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Methods have been developed for the preparation of capillary columns coated with organosiloxanes containing cyano groups. A procedure was developed for surface modification of the capillary tubing, by means of high temperature silylation. Such a modification gives deactivation and creates a surface suitable for coating with cyanosilicones. READ MORE