Apparatus for activity controlled waste incinerator afterburner

Inactive Publication Date: 2001-01-02
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY
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  • Abstract
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  • Claims
  • Application Information

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Benefits of technology

This invention involves an improved technique for the modulation of waste in an actively controlled compact waste incinerator afterburner. This improved technique utilizes acoustic driving to affect indirect modulation of waste flow velocities. This invention involves the introduction and modulation of the waste flow velocities and is an extension to U.S. Pat. No. 5,361,710. In Pat. No. 5,361,710, acoustic drivers modulate the waste surrogate injection directly. In this invention the waste surrogate gases are modulated indirectly by periodic entrainment created by the roll-up of the main air vortex as wel

Problems solved by technology

Even if the average conditions are proper, it is common that

Method used

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  • Apparatus for activity controlled waste incinerator afterburner

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Embodiment Construction

As discussed earlier, this invention comprises an improved technique for the modulation of waste in an actively controlled compact waste incinerator. This invention utilizes acoustic driving to affect indirect modulation of waste flow velocities. Waste surrogate gases are modulated indirectly by periodic entrainment created by the roll-up of the main air vortex, as well as indirect acoustic excitation of secondary air injection (FIG. 2). In both cases, the phase angle is controlled such that the combustibles are introduced into the air vortex at the proper time during the vortex formation resulting in good mixing, a controlled yet lifted partially premixed flame, high waste destruction efficiency, and low pollutant emissions. As discussed, the advantage in this new configuration is that the acoustic drivers used to phase inject the waste into the vortex for proper combustion are not in direct contact with the hot waste.

Active control of fluid dynamics has been used to enhance mixing...

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Abstract

This invention involves an improved technique for the modulation of waste in an actively controlled compact waste incinerator afterburner. This improved technique utilizes acoustic driving to affect indirect modulation of waste flow velocities. The waste surrogate gases are modulated indirectly by periodic entrainment created by the roll-up of the main air vortex as well as indirect acoustic excitation of secondary air injection. One of the main advantages of this new configuration is the acoustic drivers used to phase inject the waste into the vortex for proper combustion are not in direct contact with the hot waste and therefore can be less expensive and more durable over the long term.

Description

MICROFICHE APPENDIXNot Applicable.BACKGROUND OF THE INVENTIONInformation contained in this section is provided in more detail in U.S. Pat. No. 5,361,710. A brief overview of this technology follows in the section below.1. Field of the InventionThe present invention relates to incinerators and to a method and apparatus for the active control of compact waste incinerators. More particularly, the invention described herein is an improved technique for the modulation of waste in an actively controlled compact waste incinerator afterburner.2. Description of the Prior ArtThe interaction between turbulent mixing processes and combustion is important in many practical applications such as air-breathing propulsion systems, energy conversion power plants, hazardous waste incinerators and other chemical reactors and industrial processes. Studies of turbulent mixing during the last two decades established the role of organized coherent large-scale vortical structures in the mass and momentum tr...

Claims

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Application Information

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IPC IPC(8): F23G7/06F23C15/00
CPCF23C15/00F23C2205/10F23G7/065
Inventor PARR, TIMOTHY P.WILSON, KENNETH J.YU, KENNETHSCHADOW, KLAUSSMITH, ROBERT A.
Owner THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY
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