Links:

EPRI Page on Low Swirl Combustion Webcast
Presentation with audio (wmv file, 11 Mb)
Presentation without audio (JPG file, 2 Mb)
Final report



e-mail invitation sent out on Oct. 25, 2006

Lawrence Berkeley National Laboratory (LBL)

in conjunction with the
Department of Energy (DOE) Office of Clean Power Systems

and

Electric Power Research Institute (EPRI)

invite your participation in a

Web-Based Discussion of Low Swirl Combustion *

on

Wednesday, November 8, 2006

at

10:00 AM to Noon, PST

* "This webcast and the audio will be recorded, and your participation provides consent to that recording."  Webcast seating is limited to 65 participants, available on a first-come, first-serve basis.  The webcast with audio will be posted after the meeting on the Live Meeting website.

Webcast Topic

This web-based discussion will feature a presentation by Dr. Robert Cheng, Lawrence Berkeley National Laboratory, that describes his work on the development of Low Swirl Combustion (LSC) technology.  The objective of this web-based discussion is to provide researchers, vendors, and users of gas turbine equipment with an opportunity to learn about these R&D efforts and discuss them in an open forum with other interested parties.

Background Information on LSC Technology

LSC is a dry-low NO_x technology conceived at LBL.  It is currently being developed for application to 5-7 MW industrial gas turbines fueled with natural gas to achieve ultra-low emission targets of <5 ppm NO_x and <10 ppm CO without the use of post-combustion control systems such as SCR.  A logical extension of the current program is the adaptation for hydrogen-rich gaseous fuels including coal-derived syngas and 90+% pure hydrogen and scale-up to the sizes of large utility gas turbines, ultimately meeting the long-range DOE goal of 2 ppm NO_x emissions from hydrogen-fired turbines at 2500-2600F turbine firing temperatures.

The LSC principle is fundamentally different than the high-swirl DLN concept where toroidal vortices with strong recirculation and intense shear turbulence are generated to hold and continuously ignite the turbulent premixed flames.  LSC exploits the characteristic wave-like properties of premixed combustion and enables premixed turbulent flames to freely propagate in a divergent flow at swirl intensities well below the critical vortex breakdown threshold.  With LSC, turbines will have greater flexibility in their operations than is achievable by current technology.

Laboratory experiments are being conducted currently on hydrogen fuel-specific issues, and discussions are underway with gas turbine manufacturers to define the specifications and operating conditions of the hydrogen low-swirl injector.  Further background information on LSC is available at http://energy.lbl.gov/aet/combustion/LSC-Info/

Webcast Participation Information

Live Meeting First Time Users

If this is your first Live Meeting, you should install the Windows-based Meeting console before the meeting starts and check your system to see if it is compatible with Live Meeting.  Click here to install the Live Meeting 2005 Windows-based Meeting Console before your meeting. 

Audio Call in Number

Toll free: (888) 564-3287; Participant code: 8224

Live Meeting Webcast Site Address

https://www.livemeeting.com/cc/epripremier/join?id=NWRSZ8&role=attend&pw=m%2F6Np2q%7Ep

Webcast Agenda

The Webcast presentation material and a list of Frequently Asked Questions and Answers on LSC will be posted at http://energy.lbl.gov/aet/combustion/LSC-Info/ on or before November 1, 2006.

Back to top