Variable-speed centrifugal compressors are used in a wide variety of industries and applications, including natural gas pipelines and processing plants, oil refineries and chemical plants, air-separation units, refrigeration and air conditioning equipment refrigerant cycles, gas turbines and auxiliary power generators, and many more. Some natural gas plants, for example, employ a propane-precoo...

This thesis presents a simple, meanline analysis of the impact of blade roughness on the mass flow, work coefficient, and efficiency of a three-stage axial compressor as a function of the location of fouling. First, an extensive review is presented on the state-ofthe-art of measuring compressor degradation and on the impact of roughness on loss and deviation in a compressor cascade. The perform...

An air compressor is the core component of supply system a hydrogen fuel cell, which demands high efficiency and reliable stability in wide operation region. In this work, centrifugal for cell first designed then measured experimentally. Furthermore, test rig assessing aerodynamic performance established, includes pipeline, gas flowmeter, flow regulating valve, pressure transmitter, compressor,...

Aim. The paper examined the matter of assessment functional dependability compressor stations (CS) underground gas storage (UGS) facilities. A definition CS and guidelines for its were proposed. Methods. Design calculation stations, scenario analysis. Results. presents: a) a definition, indicators assessment; b) an example application UGS CS; c) comparative analysis in number various versions: ...