Search for dissertations about: "refrigerant"

Showing result 1 - 5 of 30 swedish dissertations containing the word refrigerant.

  2. 1. Phase-out of refrigerant R22

    Author : Anders Johansson; KTH; []
    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

  4. 2. New refrigerants for vapour compression refrigeration and heat pump systems : evaluation in a context of the requirements set by the F-gas Regulation and the Paris Agreement goals

    Author : Pavel Makhnatch; Rahmatollah Khodabandeh; Angelo Maiorino; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; refrigerant; retrofit; drop-in; HFC; HFO; F-gas Regulation; Kigali Amendment; Montreal protocol; Life cycle climate performance; LCCP; climate change; Energy Technology; Energiteknik;

    Abstract : Given the global commitment to reduce the impact of fluorinated gases on climate and the regulations controlling their use in the European Union (EU), this thesis investigates new refrigerants that have been recently proposed to meet the demands of the refrigeration industry in the EU, which must satisfy the legislative requirements of the F-gas Regulation and facilitate meeting the goals of the Paris Agreement.The legislative requirements of the EU have intensified refrigerant development with reduced GWP. READ MORE

  5. 3. CFC and HCFC refrigerant retrofit : a theoretical, practical and environmental evaluation of alternatives

    Author : Lars Herbe; KTH; []
    Keywords : Refrigerants;

    Abstract : .... READ MORE

  6. 4. Properties of oil and refrigerant mixtures : lubrication of ball bearings in refrigeration compressors

    Author : Roger Tuomas; Luleå tekniska universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Machine Elements; Maskinelement;

    Abstract : A refrigeration compressor contains highly loaded mechanical contacts that have to be lubricated. The lubricant used in refrigeration compressors consists of an oil and refrigerant mixture, and the refrigerant concentration can be up to 40 wt%. READ MORE

  7. 5. Propane as refrigerant in residential heat pumps

    Author : Olivier Pelletier; KTH; []
    Keywords : Propane; Refrigerants; Heat pumps;

    Abstract : .... READ MORE