New compact screw compressors "Bitzer" series CSH

Abstract

Performance and environmental safety

Already during the development of the compressor concept, great importance was attached to achieving high efficiency combined with environmental friendliness. Ensuring a high resulting efficiency starts with the use of a highly efficient electric motor (its efficiency reaches 0.95). When calculating the isentropic efficiency of a compressor, both the engine efficiency and the volumetric efficiency are taken into account, which is significantly dependent on internal leakage in the compressor. The value of the latter depends on the quality of the profile and the gaps between the rotors and the housing walls. The rigidity of the body and rotors determines their deformation under the influence of gas pressure and temperatures and, consequently, the size of the gaps between them.

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