compressor surge

compressor surge

compressor surge
A motion of the airflow forward and backward through the compressor, which is accompanied by available indications ranging from muffled rumblings to explosion(s) and vibrations. A rapid rise in JPT/EGT (jet pipe temperature/exhaust gases temperature), or falling RPM, is the main indication of these conditions. It may result in a flameout and even physical damage to the engine.
References in periodicals archive ?
Centrifugal Compressor Surge Control Using Nonlinear Model Predictive Control Based on LS-SVM", IEEE Transaction on Control Systems.
Application Guideline for Centrifugal Compressor Surge Control Systems", Gas Machinery Research Counsel Southwest Research Institute, Release Version 4.
Compressor surge can occur when compressors are subjected to rapid transients, such as the one following emergency shutdown (ESD) or power failure.
Ingestion of this ash ablates jet engine blades and vanes and the ash can melt to a molten glassy state, causing blockages which can lead to compressor surge and possible flameout.
Eliminating compressor surge results in tremendous compressor energy savings and operational benefits such as:
I can guess, though: violent compressor surge, catastrophic blade failure, severe vibration, primary structure failure, impact into terrain.
Compressor surge is defined and discussed in detail, along with the types of instrumentation (controllers, valves, pressure and temperature transmitters) available, and which of these are most suitable for controlling surge.
Centrifugal compressor surge and its prevention have drawn significant attention in compressor literature and editorial content.
Compressor surge is sometimes viewed as a common occurrence but design of a proper surge control system should be regarded as both a necessary design practice and an effective risk-mitigation measure.
The retrofit included improving the reliability of the gas turbine fuel control systems, upgrading the compressor surge control systems, and adding instrumentation to the stations and the turbines to allow for more precise monitoring.
In order to improve the efficiency of the compressor stations, over half of the compressor units are being retrofitted with integrated, turbine-and-compressor control systems allowing them to operate closer to pipe pressure, turbine temperature pressure limits and compressor surge.
Other applications include compressor surge control and compressor suction pressure control.