Abstract: A sensor arrangement used for measuring fouling and/or erosion in a machine. A first piezoelectric transducer, a first plate and eventually a first support member form a first vibrating mass. After electrically stimulating the first piezoelectric transducer, the first vibrating mass starts vibrating mechanically and consequently the first piezoelectric transducer generates an electric resonance vibration; the electric resonance vibration is at a resonance frequency depending on the mass of the first vibrating mass. If the mass of the first vibrating mass changes due to fouling and/or erosion by a flow of working fluid in the machine, also the electric resonance vibration frequency changes; such vibration frequency change may be measured and the corresponding mass change may be determined by comparison with a vibration frequency of a second vibrating mass not exposed to the flow of working fluid in the machine.

Abstract: An apparatus for handling a turbomachine part, particularly during disassembling and reassembling operations. More specifically, an apparatus for handling the stator cone of a gas turbine suitable to completely manipulate the stator cone during disassembling and reassembling operations. The apparatus allows to disassemble and reassemble the stator cone of a gas turbine without the need to dismount the turbomachine enclosure and without the necessity to have personnel inside the turbomachine package during the operations.

Abstract: A device for balancing a turbomachine rotor having a driver rotor and a driven rotor is provided. The device comprises a base that is coaxially fixable to the turbomachine rotor and configured to transfer torque from the driver rotor to the driven rotor. The device also comprises at least three balancing tools arranged on the base, each balancing tool (i) defining a respective balancing direction along a radial direction of the base and (ii) comprising: a weight moveable along the respective balancing direction, and a motor configured to move the weight along the respective balancing direction to balance the rotor.

Abstract: In a machine, for example a centrifugal compressor, erosion and/or corrosion of a part of the machine exposed to a working fluid to be processed by the machine is/are monitored; a corrosion probe and/or an erosion probe is/are suitably positioned inside the machine; the corrosion probe and/or the erosion probe is provided with a measurement element that is exposed to the working fluid when the machine operates; the measurement element is made of the same material of the part to be monitored so that the measurement element and the part are eroded and/or corroded in the same or similar way and/or at the same or similar rate. Corrosion and/or erosion data detected by the probe are transmitted from the probe to an electronic unit.

Abstract: An apparatus for handling a turbomachine part, particularly during disassembling and reassembling operations. More specifically, an apparatus for handling the stator cone of a gas turbine suitable to completely manipulate the stator cone during disassembling and reassembling operations. The apparatus allows to disassemble and reassemble the stator cone of a gas turbine without the need to dismount the turbomachine enclosure and without the necessity to have personnel inside the turbomachine package during the operations.

Abstract: A device for balancing a rotor of a turbomachine comprises a base coaxially fixable to the rotor; at least three balancing tools arranged on the base, each balancing tool defines a respective balancing direction along a radial direction of the base, each balancing tool comprises a weight moveable along the balancing direction; the balancing directions are uniformly angularly spaced.

Abstract: Method, system and computer software for diagnosing a compressor. The method includes generating a feature vector of the compressor, the feature vector of the compressor including components describing states of various parts of the compressor; determining, based on fuzzy constraints, an aggregated anomaly vector corresponding to the feature vector; defining rules for a preset list of possible faults/failure modes of the compressor; calculating a corroborating measure between the aggregated anomaly vector and the rules; and identifying a fault/failure mode of the compressor based on a result of the corroborating measure.

Abstract: The system allows to monitor the operation of a flexible coupling device that connects a first rotary machine to a second rotary machine of a plant and transmits rotation and torque from the first machine to the second machine; at a first side a first hub of the device is connected to a first stub of a first shaft of the first machine and at a second side a second hub of the device is connected to a second stub of a second shaft of the second machine; the system comprises one or more detectors arranged to detect the relative rotation angle between at least two components selected between the first hub, the second hub, the first stub, the second stub, and an electronic processing unit connected to the one or more detectors for receiving signals generated by the detectors.

Abstract: A system for monitoring machinery and systems in a process plant using a local monitoring and diagnostic system, the system including a plant database configured to store rule sets including at least one rule expressed as at least one of a physics-based model, a data-driven model, and a empirical model of a plant component and a relational expression of a real-time data output relative to a real-time data input, and a server grade computer configured to receive plant component data from a plant unit control panel, generate virtual sensor outputs using the at least one model associated with the plant component, transmit the plant component data and generated virtual sensor outputs to the plant database for storing and to a data visualization system for generating analytical graphics, determine using the at least one model rule set, an operating or performance condition of the plant component in near real-time.

Abstract: A system for monitoring machinery and systems in a process plant using a local monitoring and diagnostic system, the system including a plant database configured to store rule sets including at least one rule expressed as at least one of a physics-based model, a data-driven model, and a empirical model of a plant component and a relational expression of a real-time data output relative to a real-time data input, and a server grade computer configured to receive plant component data from a plant unit control panel, generate virtual sensor outputs using the at least one model associated with the plant component, transmit the plant component data and generated virtual sensor outputs to the plant database for storing and to a data visualization system for generating analytical graphics, determine using the at least one model rule set, an operating or performance condition of the plant component in near real-time.

Abstract: A Controller, a gas turbine, and a method for auto-tuning a combustion system of a gas turbine are provided. The method includes selecting a first tuning curve from a set of tuning curves for the gas turbine; unbalancing a stable operating point of the gas turbine by modifying one or more operational parameters based on a predefined recipe; determining tuning parameters and storing them while a current operating point of the gas turbine is brought back on the first tuning curve; and generating a backup of tuning parameters to recover the stable operating point.

Abstract: Method, system and computer software for diagnosing a compressor. The method includes generating a feature vector of the compressor, the feature vector of the compressor including components describing states of various parts of the compressor; determining, based on fuzzy constraints, an aggregated anomaly vector corresponding to the feature vector; defining rules for a preset list of possible faults/failure modes of the compressor; calculating a corroborating measure between the aggregated anomaly vector and the rules; and identifying a fault/failure mode of the compressor based on a result of the corroborating measure.

Abstract: A monitoring system of components of a gas turbine (1) comprising: a acquisition device (3) of signals proportional to functioning parameters characteristic of the functioning state of a gas turbine (1), a first electronic processing unit (4) comprising a first data base, a second electronic processing unit (6), a data transfer device, capable of electronically conveying the contents of said first data base to a second electronic processing unit (6), a monitoring program associated with said second electronic processing unit (6) comprising a library of algorithms, which allow the performances of the gas turbine (1) and its components to be determined by comparing data coming from subsequent recordings of said functioning parameters, a display device associated with said second electronic processing unit (6) whereby it is possible to gain access to the functionality of said monitoring program by means of a graphic interface.

Abstract: System for estimation and control of the concentrations of pollutant gases at the discharge of a gas turbine comprising a unit (3) for acquisition of the data relating to the operating state of the turbine, the said data being detected by a control panel (2) of the turbine. The system also comprises a local processing unit (4), which processes the said data in association with the said acquisition unit and makes the data available for consultation by the latter.

Abstract: A monitoring system of components of a gas turbine (1) comprising: a acquisition device (3) of signals proportional to functioning parameters characteristic of the functioning state of a gas turbine (1), a first electronic processing unit (4) comprising a first data base, a second electronic processing unit (6), a data transfer device, capable of electronically conveying the contents of said first data base to a second electronic processing unit (6), a monitoring program associated with said second electronic processing unit (6) comprising a library of algorithms, which allow the performances of the gas turbine (1) and its components to be determined by comparing data coming from subsequent recordings of said functioning parameters, a display device associated with said second electronic processing unit (6) whereby it is possible to gain access to the functionality of said monitoring program by means of a graphic interface.