Search for dissertations about: "natural refrigerant"
Showing result 1 - 5 of 7 swedish dissertations containing the words natural refrigerant.
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1. Corresponding States Correlations for the Prediction of Thermodynamic Properties of Refrigerants
Abstract : When process equipment such as separation units, heat pumps, and refrigeration systems are simulated or designed, physico-chemical properties of the fluids involved must be known. The outcome of the simulation or design depends on the accuracy of the correlations used in the prediction of physico-chemical data, so it is of the utmost importance that the correlations used correctly describe the properties of the fluids. READ MORE
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2. The Compression/Absorption Heat Pump Cycle - System Simulations
Abstract : From the results presented in this thesis it is clear that the compression/absorption heat pump cycle offers several advantages over other types of heat pumps. In many cases it gives a higher or equally high COP compared with the single-fluid compression heat pump but also the smaller SCD (i.e. READ MORE
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3. Flow Boiling Heat Transfer and Pressure Drop. Experiments and Model Development for Complex Geometries
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
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4. HFC Mixtures as Replacement for HCFC-22 in Large-Scale Heat Pumps and Chillers
Abstract : Replacement of the conventional refrigerant HCFC-22 (R22) is one of the urgent issues to be solved within the scheduled time-frame of the international regulation of the HCFCs. Since there exists no pure fluid that can replace R22 in the same general way as HFC-134a (R134a) is a replacement for CFC-12, HFC mixtures are suggested as possible substitutes. READ MORE
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5. COMHEX - a concept for joule cycle, : theoretical analysis and design study
Abstract : .... READ MORE