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Krzysztof Banasiak

Research Scientist

Krzysztof Banasiak

Research Scientist

Krzysztof Banasiak
Phone: 930 05 917
Department: Thermal Energy
Office: Trondheim

Publications and responsibilities

Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1288920

R744 ejector geometries were investigated experimentally at the multifunctional test facility designed specifically for ejector mapping. Based on the recorded primary and secondary mass flow rates, individual operation curves were determined for a typical range of operating conditions in refrigerati...

Year 2015
Type Part of a book/report
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1288872

The paper presents current developments in both experimental and numerical identification of two-phase flow phenomena in transcritical CO2 ejectors. Neither explicit identification/classification of flow patterns nor determination of velocity field for the CO2 ejector passages, based on experimental...

Year 2015
Type Part of a book/report
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1247299

A multi-ejector expansion pack, intended as a substitute for a standard high-pressure electronic expansion valve (HPV), was designed, manufactured and experimentally investigated. Four different ejector cartridges were sized to enable a discrete opening characteristic with a binary profile for a par...

Year 2015
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1238794

An ammonia / carbon dioxide (R717/R744) cascade model was designed to be able to simulate the freezing process of pelagic fish. The modelling language Modelica was applied and it was implemented in the simulation environment Dymola Control. Various simulations were performed for a typical design of ...

Year 2015
Type Part of a book/report
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1238781

A feasibility study of the COP improvement in two-stage ammonia heat pumps modified with the ejectoroperated economizer was carried out. A novel system architecture incorporating the ejector-driven flash gas removal from the economizer tank was discussed. A set of numerical simulations for the stead...

Year 2015
Type Part of a book/report
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1170955

A test facility for experimental investigation of a new multiejector R744 refrigeration system was designed and manufactured. An expansion/pre-compression block consisting of multiple ejectors was introduced into the parallel compression system, partially substituting for a classic high pressure val...

Year 2014
Type Part of a book/report
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1133472

A CFD-based numerical analysis of the flow irreversibility in R744 ejectors is presented. A validated CFD tool was used to investigate three cases that were differentiated by the mass flow rate per unit area (mass flux) that passed through the mixer, which represented three dissimilar flow patterns....

Year 2014
Type Journal publication