Search for dissertations about: "Henryk Anglart"

Showing result 1 - 5 of 15 swedish dissertations containing the words Henryk Anglart.

  1. 1. Dryout and Power Distribution Effects in Boiling Water Reactors

    Author : Carl Adamsson; Henryk Anglart; Barry Azzopardi; KTH; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Dryout; Film flow analysis; Power distribution; Measurements; Subchannel; Atomic physics; Atomfysik;

    Abstract : Film flow measurements at several axial positions in round pipes with variousaxial power distributions are presented for conditions corresponding to normaloperation of a BWR. It is confirmed that the film flow rate approaches zero atthe onset of dryout. READ MORE

  2. 2. Measurements of Film Flow Rate in Heated Tubes with Various Axial Power Distributions

    Author : Carl Adamsson; Henryk Anglart; Bengt Sundén; KTH; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; film flow; film thickness; dryout; power distribution; annular flow; Atomic physics; Atomfysik;

    Abstract : Measurements of film mass flow rate for annular, diabatic steam-water flow in tubes are presented. The measurements were carried out with four axial power distributions and at several axial positions at conditions typical for boiling water reactors, i.e. 7 MPa pressure and total mass flux in a range from 750 to 1750 kg/m2s. READ MORE

  3. 3. Experimental and theoretical study of post-dryout heat transfer in annuli with flow obstacle

    Author : Ionut Anghel; Henryk Anglart; Dariusz Mikielewicz; KTH; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; annulus; flow obstacles; critical heat flux; post-dryout; thermal margins; boiling water reactor; Physics; Fysik;

    Abstract : An experimental study on post dryout heat transfer regime in annuli with flow obstacles wasconducted in the High-pressure Water Test (HWAT) loop at the Royal Institute of Technologyin Stockholm, Sweden. An annulus with flow obstacles, consisting of two concentric heatedpipes (12.7x24. READ MORE

  4. 4. Experimental Study of Post-Dryout Heat Transferin Annuli with Flow Obstacles

    Author : Ionut Gheorghe Anghel; Henryk Anglart; Michele Andreani; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; annulus; post-dryout; temperature distribution; flow obstacles; new measurements; SRA - Energy; SRA - Energi;

    Abstract : An experimental study on post dryout heat transfer regime in annuli with flow obstacles was conducted in the High-pressure Water Test (HWAT) loop at the Royal Institute of Technology in Stockholm, Sweden. An annulus consisting of two concentric heated pipes (12.7x24.3) mm, with total heated length equal to 3650 mm was employed as a test section. READ MORE

  5. 5. Experimental analysis of thermal mixing at reactor conditions

    Author : Mattia Bergagio; Henryk Anglart; Paolo Vinai; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; mixing estimator; empirical mode decomposition; Hilbert-Huang transform; uncertainty assessment; radial heat flux; Energiteknik; Energy Technology; Physics; Fysik;

    Abstract : High-cycle thermal fatigue arising from turbulent mixing of non-isothermal flows is a key issue associated with the life management and extension of nuclear power plants. The induced thermal loads and damage are not fully understood yet. READ MORE