An accurate evaluation of the performance of a dynamic rotary compressor is of paramount interest to the builder and user of this type of machinery because it defines the ability of a machine to perform a specific job and ...

The existence of high intensity, low frequency pulsation problems in centrifugal compressor and pump piping systems has now been well documented throughout industry. Strong pulsations have been observed at frequencies ...

An expression of the noise rating of a machine is an important part of its performance specification. Precautions should be taken, however, to make sure that the noise emission specification keeps the true objective in ...

Misalignment of machinery shafts causes reaction forces to be generated in the coupling which affect the machines and are often a major cause of machinery vibration. The reaction forces generated by the couplings are ...

In this paper, we will consider only the problem of synchronous rotor response due to unbalance. There are numerous complex nonsynchronous vibrations that can occur in rotating machinery. Quite often the nonsynchronous ...

Owing to high fuel costs, European Companies have always had to use special care in planning their process-energy requirements. Therefore, the industrial steam turbine has also played a major part in this respect. The ...

The paper discusses the fundamental relationships between turbine overspeed and the time constant of the rotor. The amount of overspeed is shown to be related not only to the time lag of the emergency tripping devices, but ...

Centrifugal compressors have been used to compress oxygen for at least 25 years. Until ten years ago, the flows were relatively small and discharge pressures were relatively low. In the mid 1960's the size of single train ...

Following a review of possible alternative solutions regarding the choice of a mechanical driver; i.e., electric motor, gas turbine or steam turbine, it is demonstrated that the steam turbine as applied in industry is ...