Purge system, system including a purge system, and purge method

摘要

A purge system and liquid fuel atomizing system, a system including a purge system and liquid fuel atomizing system, and a method of purging and atomizing are disclosed. The purging involves a first nozzle, a second nozzle, a third nozzle, and a staged compression system having a first stage and a second stage. The first stage is configured to selectively direct a first pressurized fluid stream to the first nozzle and the second nozzle. The second stage is configured to selectively direct a second pressurized fluid stream to the third nozzle.

主权项

1. A system, comprising:
a gas turbine engine comprising: a first set of nozzles; a second set of nozzles; a third set of nozzles; a combustor; wherein one of the first, second and third sets of nozzles include at least one liquid fuel nozzle, and one of the first, second and third sets of nozzles include at least one gaseous fuel nozzle; a carbon capture system comprising a staged compression system having at least a first stage of compression and a second stage of compression; wherein the first stage of compression is configured to selectively direct a first pressurized fluid stream to purge the first and second sets of nozzles in response to a first operating mode; and wherein the second stage of compression is configured to selectively direct a second pressurized fluid stream to purge the third set of nozzles in response to a second operating mode; wherein the first and second pressurized fluid streams are non-combustible and include CO2 at a concentration greater than the concentration of CO2 in air; wherein the second pressurized fluid stream is greater in pressure than the first pressurized fluid stream.