Short Summary
Actively
Controlled Jet Injection in Gas Turbine Engines
Ann R. Karagozian,
Luca Cortelezzi, and Robert T. M'Closkey
99-11
EISG Project Title: Actively
Controlled Jet Injection in Gas Turbine Engines
EISG Grant Number: 99-11
PIER Area: Environmentally Preferred Advanced Generation
Principal Investigator: Ann Karagozian
Contact Information: (310) 825-5653 ark@seas.ucla.edu
Organization: University of California, Los Angeles
Grant Amount: $74,899
Grant Term: 18 Months
Project Description:
The purpose of this project is to research the feasibility of using actively-controlled dilution air jets that deliver pulsed air perpendicular to the intake air flow in the primary zone of a gas turbine’s burner to rapidly produce a lean mixture. Dilution air jets are used in gas turbines for temperature control and for NOx reduction through air-fuel mixture ratio control. This project builds upon prior work that modeled pulsed transverse jet flow and will develop control strategies based on simulations followed by experimental validation using a bench-scale combustor.
Proposed Outcomes:
· Optimal open and closed loop control strategies for pulsed dilution jets to achieve maximum reduction of NOx emissions.
·
Combustor
design specifications for incorporating pulsed air jets, actuators and sensors.
Anticipated Benefits:
· Reduce NOx emissions in gas turbines by 50% by maintaining a constant lean air-fuel mixture.