Integrated CO2 system with pumping unit and direct expansion

The latest innovations and continuous research into energy saving and the use of natural refrigerants have led to the development of a cascade installation that uses only carbon dioxide (R744, CO2) as the refrigerant for the utilities.
CREA S.p.A. has developed the installation both as regards the concept and the design, construction and installation of the main units: chiller, compressor rack, piping and system control.
CREA represents a leading company in the design and development of centralised refrigeration units and compressor racks for large retail centres.
The complete range of services it currently provides its customers are the result of extensive experience: from design to installation and maintenance.
Partners in the project were ALFAPROJEKT and CAREL S.p.A.
The main objectives of the installation were to: verify the effective energy savings of the solution, demonstrate the feasibility of systems using CO2 as the only refrigerant fluid, use a solution with a low environmental impact: minimising the refrigerant charge (HFC used only for cooling the CO2).

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