Back to results
US 9,091,206 B2Granted
Systems and methods for inlet fogging control
AssigneeGeneral Electric Company
InventorsRahul J. Chillar, Chayan Mitra, Julio Enrique Mestroni, Sandip Maity, Rachit Sharma
Life of this patent
Estimating the term…
Abstract
The present application provides an inlet air fogging system for a gas turbine engine. The inlet air fogging system may include a fogging nozzle array and a fogging control system in communication with the fogging nozzle array. The fogging control system may include a droplet size measurement system and a humidity level measurement system.
Claims14
An inlet air fogging system for a gas turbine engine, comprising:
- an inlet plenum extending from a fogging nozzle array to a bellmouth;
- the fogging nozzle array positioned at the inlet plenum, and configured to inject fluid droplets into the inlet plenum;
- and
- a fogging control system in communication with the fogging nozzle array;
- the fogging control system comprising a droplet size measurement system and a humidity level measurement system, the fogging control system configured to adjust a droplet size distribution of fluid droplets injected by the fogging nozzle array;
- wherein the droplet size measurement system is positioned about the bellmouth and configured to measure a droplet size distribution of the fluid droplets entering the bellmouth;
- the humidity level measurement system is positioned about the bellmouth and configured to measure a humidity level and determine a moisture fraction level of fluid entering the bellmouth;
- and
- wherein the fogging control system is configured to adjust a droplet size of the fluid droplets injected by the fogging nozzle array when the moisture fraction is greater than a desired moisture fraction and when the droplet size distribution is greater than a desired droplet size distribution, based on feedback from the droplet size measurement system and the humidity level measurement system.
6 more elements
An inlet air fogging system for a gas turbine engine, comprising:
- a fogging nozzle array configured to inject fluid droplets;
- a silencer positioned downstream of the fogging nozzle array;
- and
- a fogging control system in communication with the fogging nozzle array, the fogging control system configured to adjust a droplet size distribution of fluid droplets injected by the fogging nozzle array;
- the fogging control system comprising a particle imaging velocimetry system or a phase doppler anemometry system positioned downstream of the silencer to measure droplet size distribution and a tunable diode laser absorption spectroscopy system to measure humidity level and moisture fraction, wherein the fogging control system is configured to adjust an injection pressure of the fluid injected by the fogging nozzle, and the fogging control system is configured to adjust a droplet size distribution of fluid droplets injected by the fogging nozzle array when the moisture fraction is greater than a desired moisture fraction based on feedback from either the particle imaging velocimetry system or the phase doppler anemometry system and when the droplet size distribution is greater than a desired droplet size distribution based on feedback from the tunable diode laser absorption spectroscopy system.
2 more elements
Dependencies are inferred from the claim text.