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Show Presented at 2012 AFRC Annual Meeting, September 5-‐7, Salt Lake City, UT © 2012 ClearSign Combustion Corp. all rights reserved Computer Controller ±10v ±40,000v Power Amplifier Combustion system Electrode(s) Combustion Enhancement: Introducing Electrodynamic Combustion Control (ECC™) Technology Joseph Colannino, CTO ClearSign Combustion Corporation Seattle, Washington Abstract ClearSign's Electrodynamic Combustion Control™ (ECC™) technology uses a computer-‐ controlled high-‐voltage electric fields to manipulate the movement of electrically charged molecules (ions) that are a natural product of combustion processes. The pulsed field creates very powerful electrostatic forces (Coulombic body forces) that may be used to create a number of beneficial effects, among them • increased fuel-‐air mixing with attendant reduction of excess air, CO, soot, and PM • increased stability, flame speed, attachment, and turndown • reduced emissions of NOx • enhanced heat transfer to a surface or rejection therefrom • flame shaping, and • enhanced flame luminosity. Introduction The ClearSign system comprises a proprietary low-‐voltage computer-‐generated signal boosted by a power amplifier to the kV range (Figure 1). Figure 1. The ClearSign System. A proprietary low-‐voltage computer-‐generated waveform is boosted by an amplifier to the kV range. The kV signal is run a short distance to the vicinity of the flame, providing an electric field that influences the flame in a variety of beneficial ways. Total required electrical power is less than 0.1% of the total thermal output. |