Search for dissertations about: "zeotropic"

Found 3 swedish dissertations containing the word zeotropic.

  1. 1. Mixture Effects in Shell-and-Tube Condensers. Theory and Calculations

    Author : Tord Karlsson; [2004]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; shell-and-tube; heat transfer; zeotropic; condensation; mass transfer; mixture;

    Abstract : Zeotropic mixtures have come into more frequent use as working fluids (refrigerants) in heat pumps and air conditioning equipment due to the phase-out of ozone-depleting substances. Substantial drop in performance for shell-side condensation in shell-and-tube condensers when replacing a pure fluid with a mixture has been reported in the literature. READ MORE

  2. 2. Flow Boiling Heat Transfer and Pressure Drop. Experiments and Model Development for Complex Geometries

    Author : Sven Wellsandt; [2004]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; pressure drop; zeotropic mixtures; heat transfer; herringbone microfin; dimple plate; modelling; evaporation; flow boiling; experiments;

    Abstract : Two very different evaporator geometries, a dimple plate and a herringbone microfin tube, have been studied. Heat transfer and pressure drop for both pure refrigerants and refrigerant mixtures have been determined experimentally. READ MORE

  3. 3. Phase-out of refrigerant R22

    University dissertation from Stockholm : Energiteknik

    Author : Anders Johansson; KTH.; [2003]
    Keywords : Retrofit; Phase-out; CFC; HCFC; HFC; R22; R407C; R417A; R404A; R134a; Ozone depletion; Zeotropic refrigerant mixture; Circulated composition; Measurement; Energy; Energy efficiency; System; Systems analysis; Modelling; Simulation; Prediction;

    Abstract : .... READ MORE