Compressor response investigation in nearly unstable operating conditions, like rotating
stall and incipient surge, is a challenging topic nowadays in the turbomachinery research …

Centrifugal compressor machinery is subject to a potentially damaging phenomenon called
surge at low mass flow rates. This effect may be preceded by a phenomena known as inlet …

This paper shows experimental results obtained from a T100 microturbine connected with
different volume sizes. The activity was carried out with the test rig developed at the …

Detection of aerodynamic instabilities in compressors is of great importance for machine
safety and efficiency. It is a challenge due to their highly non-stationary and non-linear …

Aerodynamic instabilities in centrifugal compressors are dangerous phenomena affecting
machine efficiency and in severe cases leading to failure of the compressing system. Quick …

The aim of this work is the demonstration of a surge prevention technique for advanced gas
turbine cycles. There is significant surge risk in dynamic operation for turbines connected …

Unstable flow structures cause inevitable energy losses in all power energy systems,
including turbomachines. In this study, a set of analyses was conducted with the use of …

Centrifugal compressor efficiency is the key to increasing incomes from its operation. There
are several flow instabilities which can negatively affect a compressor, one of them being the …

The article is devoted to the experimental investigation of the interactions between the
amplitudes and frequencies of surge in a single-stage centrifugal blower and the …

The aim of this article is to present the application of empirical mode decomposition (EMD)
for centrifugal blower flow instabilities detection. The analysis of pressure signal features …