BITZER semi-hermetic piston and screw compressors for CO2 cascade refrigeration systems

Abstract

After many years of oblivion of carbon dioxide, the interest to it from the side of developers of refrigeration equipment has recently increased noticeably, which is caused primarily by aggravated environmental problems. In recent years, many cascade installations for commercial and industrial low-temperature cooling (t₀ = - 50 °С) have been successfully put into operation. It should be kept in mind that in comparison with other refrigerants C0₂ has better thermophysical properties in this mode. This is chemically inert, fire and explosion-proof substance.

Keywords

semi-hermetic piston compressors / screw compressors / cascade refrigeration units / CO2 / Bitzer

References

[1] Pearson F., Refrigeration Systems Using Low Pressure Receivers, loR Paper (UK), 1983.

[2] Fahl J., Lubricants for CO2 - DKV Conference (Germany), 1997.

RIGHTS & PERMISSIONS

Renz G.