Nuovo Pignone Tecnologie Srl

Fabio Baldanzini

Marco Pelella

Leonardo Baldassarre

Lorenzo Gallinelli

Marco Santini

Antonio Pelagotti

Giuliano Milani

Gaspare Maragioglio

Fabrizio Malvaldi

Joseph Watson

Nicola Marcucci

A hybrid train system comprising at least one gas turbine to drive a load, and an electric machine unit, also connected to the load. A clutch is installed between the gas turbine and the load. Also, an integrated reduction gear unit is interposed between the load and the electric machine unit, to adapt to different operating speeds.

Dual purpose integrated gear for hybrid train application

A turbomachinery plant comprises a mechanical hybrid gas turbine and a cooling system for the mechanical hybrid gas turbine conceived to increase/decrease a flow rate of a refrigerant fluid cooled by a chiller so as to an amount of air in an air filter chamber of a gas turbine module reaches a temperature corresponding to a predetermined temperature value associated to a predetermined power value of a gas turbine in a first degradation curve or an amount of air in an electrical reversible machine of a variable frequency drive electric unit reaches a temperature value corresponding to a predetermined temperature value associated to a predetermined power value of the electrical reversible machine in a second degradation curve, depending on a power demand. Also disclosed is a method for cooling an amount of air in a gas turbine module and in a variable frequency drive electric unit.

Turbomachinery plant comprising a mechanical drive hybrid gas turbine and a dynamic cooling system for the mechanical drive hybrid gas turbine

A thermodynamic system containing a working fluid is disclosed. The thermodynamic system comprises at least a working fluid collection vessel () adapted to contain a liquid phase and a gaseous phase of the working fluid in thermodynamic equilibrium. A chilling arrangement () is functionally coupled to the fluid collection vessel () and adapted to remove heat from the working fluid collected in the working fluid collection vessel () and thereby reduce pressure in said thermodynamic system. Also disclosed are methods for depressurizing a thermodynamic system containing a working fluid in liquid/gas equilibrium.

Thermodynamic system containing a fluid, and method for reducing pressure therein

A method for operating start-up of a compressor train is disclosed. The train includes a driver machine and at least a centrifugal compressor drivingly coupled to the driver machine. The centrifugal compressor in turn includes a plurality of compressor stages and at least a first set of variable inlet guide vanes at an inlet of one of the compressor stages. The method includes at least partly closing the first set of variable inlet guide vanes; when the first set of variable inlet guide vanes is at least partly closed, starting rotation of the centrifugal compressor and accelerating the centrifugal compressor up to a minimum operating speed; opening the at least one set of variable inlet guide vanes to increase the gas flow through the centrifugal compressor once the minimum operating speed has been achieved.

Compressor train start-up using variable inlet guide vanes

A method of pressurizing a downstream compressor system operatively connected to an upstream compressor system by using a bleeding line connected at a first end to the downstream compressor system and at a second end at least to one bleeding region or tie-out region of the upstream compressor system.

Growing community of inventors

Florence, Italy

Fabio Baldanzini