Active Combustion Control Valve Project

Metadata Updated: July 8, 2015

Over the past decade, research into active combustion control has yielded impressive results in suppressing thermoacoustic instabilities and widening the operational range of gas-turbine combustors. Active Combustion Instability Control (ACIC) controls the combustion process such that the heat release profile is modulated to dampen the naturally occurring thermoacoustic instabilities. A major challenge to effective implementation of active combustion control is the availability of valves and actuators that provide adequate flow modulation control authority. The majority of the published work revolves around valves designed to modulate the main combustor flow. At present these valves are not designed to operate in a harsh environment and as such are required to be located outside the main flow path, reducing their control authority. To effectively meet the challenge, valves and sensors that are smaller, more responsive and robust must be developed. Ultimately the control valves are co-located with the fuel injection manifold. The trade-off for the harsh environment operation is the ability to maximize the flow modulation control authority. The objective of this research is to integrate the required control authority into an operational environment. This research continues the development of a light weight fast-acting fuel control valve for harsh environment operation. In the Phase 1 effort, the valve demonstrated the ability to modulate fluid flow at 1,000 Hz. This demonstrated the valve will allow the precise time dependent fuel control required for lean-burn combustor operability. In this Phase II research a Prototype valve is designed, fabricated and flow tested using commercially-available driver circuitry to demonstrate valve operation in harsh thermal environments.

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Public: This dataset is intended for public access and use. License: U.S. Government Work

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Metadata Created Date April 9, 2015
Metadata Updated Date July 8, 2015

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date April 9, 2015
Metadata Updated Date July 8, 2015
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_17994
Gary Jahns
Maintainer Email
Id {$oid: 55942a8cc63a7fe59b49859c}
Public Access Level public
Bureau Code 026:00
Metadata Context
Schema Version
Catalog Describedby
Harvest Object Id e77a51bd-52cc-4123-ae62-55ada7228929
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2014-04-01T00:00:00Z
Homepage URL
Language en-US
Data Last Modified 2015-03-12
Program Code 026:027
Publisher Hierarchy National Aeronautics and Space Administration > Space Technology Mission Directorate
Related Documents,,,,,,,
Source Datajson Identifier True
Source Hash 946454c49a4281bd147499f61a920ec50606ca12
Source Schema Version 1.1
Temporal 2014-04-01T00:00:00Z/2016-04-01T00:00:00Z

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