Sökning: "Johan Kullheim"

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  1. 1. Field Measurements and Evaluation of CO2 Refrigeration Systems for Supermarkets

    Master-uppsats, KTH/Energiteknik

    Författare :Johan Kullheim; [2011]
    Nyckelord :CO2; Measurements; Refrigeration; Supermarkets;

    Sammanfattning : In this thesis, three supermarket refrigeration systems are evaluated; two trans-critical DX CO2 systems and one R404A/CO2 cascade system. Field measurements of energy consumption, temperatures, pressures, and compressor motor frequency are made using the computer programs IWMAC and LDS. LÄS MER