Sökning: "Per Fahlén"

Hittade 4 avhandlingar innehållade orden Per Fahlén.

  1. 1. Performance tests of air source heat pumps under frosting conditions : quality of results Per Fahlén

    Författare :Per Fahlén; Chalmers University of Technology; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : .... LÄS MER

  2. 2. Frosting and Defrosting of Air-Coils

    Författare :Per Fahlén; Chalmers University of Technology; []
    Nyckelord :heat pump; defrost; air-coil; air-source; control; frost; optimized;

    Sammanfattning : Experience indicates that air-source heat pumps have more operating problems than ground-source heat pumps. One major factor pertains to the effects of frosting and the subsequent need for defrosting. This thesis reviews previous research and practical experience and presents novel experimental facilities to investigate the process of frosting. LÄS MER

  3. 3. Structures beyond the frameworks of the rink : On organization in Swedish ice hockey

    Författare :Josef Fahlén; Martin Johansson; Per-Göran Fahlström; Ingemar Wedman; Umeå universitet; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Sport organizations; sport management; organizational structure; institutional theory; ice hockey clubs; professionalization; volunteers; amateurism; non-profit; Education; Pedagogik;

    Sammanfattning : This is a dissertation on organization in Swedish ice hockey based on four articles. The purpose of the thesis is to contribute knowledge on the direction, management and practice of sport using Swedish elite ice hockey as an example. Knowledge is created by examining four separate but mutually contingent aspects of organizations. LÄS MER

  4. 4. Energy Efficiency in Shopping Malls : Some Aspects Based on a Case Study

    Författare :Sofia Stensson; Jan-Olof Dalenbäck; Per Fahlén; Monica Axell; Jeffrey Spitler; Sweden Chalmers University of Technology; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Shopping mall; energy use; energy efficiency; HVAC system; load patterns; case study; regulatory requirements; building code; and energy declarations;

    Sammanfattning : The building sector accounts for approximately 40 percent of our energy use. To reach existing environmental targets energy use will have to be reduced in all building types. At the European level, the main legislative instrument for improving the energy efficiency of the building stock is the Energy Performance of Buildings Directive (EPBD). LÄS MER