Sökning: "Sp – Sveriges Tekniska Forskningsinstitut"

Visar resultat 1 - 5 av 10 avhandlingar innehållade orden Sp – Sveriges Tekniska Forskningsinstitut.

  1. 1. Theoretical aspects and experimental data on the deterioration of polyolefin hot-water pipes

    Författare :Jens Viebke; RISE; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  3. 2. Power Measurement Techniques for Nonsinusoidal Conditions. The Significance of Harmonics for the Measurement of Power and other AC quantities

    Författare :Stefan Svensson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; non-sinusoidal; reactive; harmonics; power; sampling wattmeter;

    Sammanfattning : The increased application of power electronics and other non-linear loads makes it necessary to re-evaluate the measuring techniques used in the power system, and the measuring problems these loads cause. An instrument utilising digital sampling techniques has been built and evaluated at the Swedish National Testing and Research Institute (SP). LÄS MER

  4. 3. Vertical Display Cabinets in Supermarkets - Energy Efficiency and the Influence of Air Flows

    Författare :Monica Axell; RISE; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; display cabinet; model; simulation; supermarket; CFD; air curtain; energy; performance; air distribution; display case; infiltration;

    Sammanfattning : This thesis concerns investigations of the performance of vertical refrigerated display cabinets. Such cabinets are in widespread use and account for a considerable proportion of the energy used in shops. The open front is important for the shop-owner, who wants the chilled items in the cabinet to be well exposed and easily accessible. LÄS MER

  5. 4. Particles from biomass combustion : characteristics and influence on additives

    Författare :Linda S. Bäfver; RISE; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  7. 5. Capacity Control of Residential Heat Pump Heating Systems

    Författare :Fredrik Karlsson; RISE; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; energy efficiency; variable-speed; air-source; performance; hydronic heating system; ground-source; heat pump; defrost; optimisation; circulator; capacity control;

    Sammanfattning : Heat pumps used for space and sanitary hot water heating of residential buildings are increasingly popular in northern Europe. As they compete with other heating equipment and in order to limit the environmental impact of their use, it is very important that heat pumps are energy efficient. LÄS MER