Search for dissertations about: "Björn Palm"

Showing result 16 - 20 of 37 swedish dissertations containing the words Björn Palm.

  2. 16. Integrating Heat Pumps into Smart Grids

    Author : David Fischer; Björn Palm; Georges Laurent; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Energy Technology; Energiteknik;

    Abstract : Transforming our energy system towards 100% renewable energy sources requires radical changes across all energy sectors. Heat pumps as efficient heat generation technology link the electricity and heat sector. From 2010 to 2015 between 750,000 and 800,000 heat pumps have been sold every year across Europe. READ MORE

  4. 17. Enhanced boiling heat transfer from a novel nanodendritic micro-porous copper structure

    Author : Richard Furberg; Björn Palm; Mats Strömblad; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Thermal energy engineering; Termisk energiteknik;

    Abstract : Following licentiate thesis is a summary of the advances made within the research project - Micro- and nano structured surfaces for enhanced boiling heat transfer – which is a collaboration effort between the Divi-sion of Applied Thermodynamics and Refrigeration and the Division of Materials Chemistry at the Royal Institute of Technology (KTH). The main objectives with this research project has been to: develop methods for producing highly efficient boiling surfaces with well defined micro- and nano-structured porous surfaces by the use of micro- and nano-manufacturing techniques. READ MORE

  5. 18. Enhanced Boiling Heat Transfer on a Dendritic and Micro-Porous Copper Structure

    Author : Richard Furberg; Björn Palm; Vishwas Wadekar; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; enhanced boiling; R134a; FC-72; flow boiling; heat transfer; high speed visualization; instability; micro-channels; micro-structured; nano- and micro-technology; nano- and micro-porous structured surfaces; plate heat exchanger; pool boiling; porous media; thermosyphon; two-phase heat transfer; SRA - Energy; SRA - Energi;

    Abstract : A novel surface structure comprising dendritically ordered nano-particles of copper was developed during the duration of this thesis research project. A high current density electrodeposition process, where hydrogen bubbles functioned as a dynamic mask for the materials deposition, was used as a basic fabrication method. READ MORE

  6. 19. Investigation of Thermal Performance of Cylindrical Heatpipes Operated with Nanofluids

    Author : Morteza Ghanbarpourgeravi; Rahmatollah Khodabandeh; Björn Palm; Oronzio Manca; KTH; []
    Keywords : Nanofluid; heat pipe; thermal resistance; heat transfer coefficient; evaporator; condenser; wick; porous layer; heat flux; inclination angle; thermal conductivity; viscosity; Energiteknik; Energy Technology;

    Abstract : Nanofluids as an innovative class of heat transfer fluids created by dispersing nanometre-sizedmetallic or non-metallic particles in conventional heat transfer fluids displayed the potential toimprove the thermophysical properties of the heat transfer fluids. The main purpose of this study is toinvestigate the influence of the use of nanofluids on two-phase heat transfer, particularly on thethermal performance of the heat pipes. READ MORE

  7. 20. An experimental study on the dynamics of thin liquid films on heater surfaces

    Author : Shengjie Gong; Tomas Lefvert; Björn Palm; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; liquid film; liquid film instability; film thickness measurement; confocal optical sensor; micro conductive probe; Physics; Fysik;

    Abstract : .... READ MORE