The leading companies own the advantages on better performance, more abundant product’s types, better technical and impeccable after-sales service. Consequently, they take the majority of the market share of high-end market. Looking to the future years, the slow upward price trend in recent years will maintain. As competition intensifies, prices gap between different brands will go narrowing. Similarly, there will be fluctuation in gross margin.
The industry is expected to remain innovation-led, with frequent acquisitions and strategic alliances adopted as the key strategies by the players to increase their industry presence. Market stays in mature period with a clear concentration. Meanwhile, optimize product mix and further develop value-added capabilities to maximize margins.
Global Centrifugal Compressors Market: Market Driver and Restraint
Centrifugal compressors are highly engineered products. The reach of these machines spans many different applications including aerospace engines, automobile turbochargers, chemical processes, air conditioning, supercritical CO2, micro gas turbines, military equipment cooling, blowers, vacuum cleaners, and many others. Typically, a compressor is created for one operating or design point. However, operation of these machines is not limited to only this regime. In fact, some machines rarely operate at this point, making off-design performance more important in these cases.
Centrifugal compressors operate on a similar principal to centrifugal pumps. The compressor imparts a force (resulting in a velocity and temperature) to a gas, via its spinning impellers.
Similar to a centrifugal pump (only in this case it is a gas) the working fluid is enters the compressor at the center of the impeller. It then changes direction and is discharged radially to the outside of the impeller at an increased velocity, and kinetic energy.
In contrast to a centrifugal pump (which has completed it’s function when the fluid departs radially from the impeller) the gas exiting a centrifugal compressor impeller then passes through a stationary diffuser which reduced the gas velocity. At the diffuser the kinetic energy is converted into static pressure.
The gas then passes through a stationary diffuser where its velocity is reduced, and its kinetic energy is converted to static pressure. Part of the static pressure rise occurs in the impeller and part in the diffuser. The overall static pressure rise is achieved both at the impeller and at the diffuser.
Same as with a centrifugal pump – in many cases one impeller stage is not sufficient to reach the required discharge pressure. In such cases more than one impeller stages are used.
In accordance with the universal gas law’s, as the gas is compressed it’s temperature will increase proportionally.
As with all rotating equipment – seal systems are very important. Centrifugal compressors make use of seals to both contain the process gas and prevent contamination of the process gas.
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