US 12,140,076 B2
Turbomachinery plant comprising a mechanical drive hybrid gas turbine and a dynamic cooling system for the mechanical drive hybrid gas turbine
Marco Santini, Florence (IT); and Fabio Baldanzini, Florence (IT)
Assigned to Nuovo Pignone Tecnologies—SRL, Florence (IT)
Appl. No. 18/557,858
Filed by NUOVO PIGNONE TECNOLOGIE - SRL, Florence (IT)
PCT Filed Apr. 22, 2022, PCT No. PCT/EP2022/025173
§ 371(c)(1), (2) Date Oct. 27, 2023,
PCT Pub. No. WO2022/228724, PCT Pub. Date Nov. 3, 2022.
Claims priority of application No. 102021000010889 (IT), filed on Apr. 29, 2021.
Prior Publication US 2024/0209781 A1, Jun. 27, 2024
Int. Cl. F02C 7/143 (2006.01); F01D 15/10 (2006.01); F02C 7/12 (2006.01)
CPC F02C 7/143 (2013.01) [F01D 15/10 (2013.01); F02C 7/12 (2013.01); F05D 2220/32 (2013.01); F05D 2220/76 (2013.01); F05D 2260/213 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A turbomachinery plant comprising: a gas turbine module comprising:
a gas turbine and an air filter chamber;
a variable frequency drive electric unit comprising an electrical reversible machine capable of supplying/absorbing power;
a cooling system comprising
at least one chiller for cooling a refrigerant fluid,
a first line connecting the chiller to the air filter chamber,
a second line connecting the chiller to the electrical reversible machine, and
at least one pumping device, connected to the chiller and configured to pump the refrigerant fluid cooled by the chiller at least in the first line and the second line; and
wherein the turbomachinery plant further comprises:
storage means for storing data,
a control central unit connected to the chiller, the pumping device and the storage means and configured to store in the storage means a first degradation curve associated to the gas turbine, wherein a predetermined first temperature value is associated to a predetermined first power value, and a second degradation curve associated to the electrical reversible machine, wherein a predetermined second temperature value is associated to a predetermined second power value;
wherein the cooling system further comprises:
a first valve to change a flow rate of an amount of refrigerant fluid flowing on the first line;
a first measurement and control device configured to measure a first temperature value associated with the air in the air filter chamber and to control the first valve;
a second valve to change a flow rate of an amount of the refrigerant fluid flowing on the second line; and
a second measurement and control device configured to measure a second temperature value associated with the refrigerant fluid cooled by the chiller and to control the second valve; and
wherein the central control unit is configured to:
set a temperature reference value for the refrigerant fluid, so that the refrigerant fluid exiting the chiller has the temperature reference value;
activate the pumping device; and
control each valve, independently from each other, through the respective first and second measurement and control devices, to increase or decrease a flow rate of the refrigerant fluid cooled by the chiller, so as to either the air in the air filter chamber reaches a predetermined first temperature value associated with the predetermined first power value of the gas turbine in the first degradation curve, or the air in the electrical reversible machine reaches a predetermined second temperature value associated with the predetermined second power value of the electrical reversible machine in the second degradation curve, depending on a power demand.