Real-time combustion controller

Lindner, Jeffrey S.; Shepard, W. Steve; Etheridge, John A.; Jang, Ping-Rey; Gresham, Lawrence L.

Title: Real-time combustion controller

Full Record
Other Related Research

Abstract

A method and system of regulating the air to fuel ratio supplied to a burner to maximize the combustion efficiency. Optical means are provided in close proximity to the burner for directing a beam of radiation from hot gases produced by the burner to a plurality of detectors. Detectors are provided for sensing the concentration of, inter alia, CO, CO.sub.2, and H.sub.2 O. The differences between the ratios of CO to CO.sub.2 and H.sub.2 O to CO are compared with a known control curve based on those ratios for air to fuel ratios ranging from 0.85 to 1.30. The fuel flow is adjusted until the difference between the ratios of CO to CO.sub.2 and H.sub.2 O to CO fall on a desired set point on the control curve.

Inventors:: Lindner, Jeffrey S.; Shepard, W. Steve; Etheridge, John A.; Jang, Ping-Rey; Gresham, Lawrence L.

Issue Date:: 1997-01-01

Research Org.:: Mississippi State Univ., Mississippi State, MS (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 870809

Patent Number(s):: 5599179

Application Number:: 08/283,795

Assignee:: Mississippi State University (Mississippi State, MS)

Patent Classifications (CPCs):: F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23N - REGULATING OR CONTROLLING COMBUSTION

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

Show more

F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23N - REGULATING OR CONTROLLING COMBUSTION
F23N1/02 - conjointly with air supply
F23N5/003 - {using detectors sensitive to combustion gas properties
F23N5/082 - {using electronic means}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
Y02T50/60 - Efficient propulsion technologies

Show less

DOE Contract Number:: FG02-93CH10575

Resource Type:: Patent

Resource Relation:: Patent File Date: 1994 Aug 01

Country of Publication:: United States

Language:: English

Subject:: real-time; combustion; controller; method; regulating; air; fuel; ratio; supplied; burner; maximize; efficiency; optical; means; provided; close; proximity; directing; beam; radiation; hot; gases; produced; plurality; detectors; sensing; concentration; alia; differences; ratios; compared; control; curve; based; ranging; 85; 30; flow; adjusted; difference; fall; desired; set; combustion efficiency; close proximity; hot gas; fuel flow; hot gases; optical means; gases produced; desired set; fuel ratio; combustion control; /431/

Citation Formats


                    Lindner, Jeffrey S., Shepard, W. Steve, Etheridge, John A., Jang, Ping-Rey, and Gresham, Lawrence L.. Real-time combustion controller.  United States: N. p., 1997. 
        Web.

Copy to clipboard


                    Lindner, Jeffrey S., Shepard, W. Steve, Etheridge, John A., Jang, Ping-Rey, & Gresham, Lawrence L.. Real-time combustion controller.  United States.

Copy to clipboard


                    Lindner, Jeffrey S., Shepard, W. Steve, Etheridge, John A., Jang, Ping-Rey, and Gresham, Lawrence L.. Wed .  
        "Real-time combustion controller".  United States.  https://www.osti.gov/servlets/purl/870809.

Copy to clipboard


                    
@article{osti_870809,

  title        = {Real-time combustion controller},

  author       = {Lindner, Jeffrey S. and Shepard, W. Steve and Etheridge, John A. and Jang, Ping-Rey and Gresham, Lawrence L.},

  abstractNote = {A method and system of regulating the air to fuel ratio supplied to a burner to maximize the combustion efficiency. Optical means are provided in close proximity to the burner for directing a beam of radiation from hot gases produced by the burner to a plurality of detectors. Detectors are provided for sensing the concentration of, inter alia, CO, CO.sub.2, and H.sub.2 O. The differences between the ratios of CO to CO.sub.2 and H.sub.2 O to CO are compared with a known control curve based on those ratios for air to fuel ratios ranging from 0.85 to 1.30. The fuel flow is adjusted until the difference between the ratios of CO to CO.sub.2 and H.sub.2 O to CO fall on a desired set point on the control curve.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1997},

  month        = {1}

}

Copy to clipboard

Patent:

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE Patents and OSTI.GOV collections:

Real-time combustion control and diagnostics sensor-pressure oscillation monitor

Patent Chorpening, Benjamin T [Morgantown, WV]; Thornton, Jimmy [Morgantown, WV]; Huckaby, E David [Morgantown, WV]; ...

An apparatus and method for monitoring and controlling the combustion process in a combustion system to determine the amplitude and/or frequencies of dynamic pressure oscillations during combustion. An electrode in communication with the combustion system senses hydrocarbon ions and/or electrons produced by the combustion process and calibration apparatus calibrates the relationship between the standard deviation of the current in the electrode and the amplitudes of the dynamic pressure oscillations by applying a substantially constant voltage between the electrode and ground resulting in a current in the electrode and by varying one or more of (1) the flow rate of themore » « less
Full Text Available
Use of miniature magnetic sensors for real-time control of the induction heating process

Patent Bentley, Anthony E [Tijeras, NM]; Kelley, John Bruce [Albuquerque, NM]; Zutavern, Fred J [Albuquerque, NM]

A method of monitoring the process of induction heating a workpiece. A miniature magnetic sensor located near the outer surface of the workpiece measures changes in the surface magnetic field caused by changes in the magnetic properties of the workpiece as it heats up during induction heating (or cools down during quenching). A passive miniature magnetic sensor detects a distinct magnetic spike that appears when the saturation field, B.sub.sat, of the workpiece has been exceeded. This distinct magnetic spike disappears when the workpiece's surface temperature exceeds its Curie temperature, due to the sudden decrease in its magnetic permeability. Alternatively, anmore » « less
Full Text Available
Process for fabricating device structures for real-time process control of silicon doping

Patent Weiner, Kurt H [San Jose, CA]

Silicon device structures designed to allow measurement of important doping process parameters immediately after the doping step has occurred. The test structures are processed through contact formation using standard semiconductor fabrication techniques. After the contacts have been formed, the structures are covered by an oxide layer and an aluminum layer. The aluminum layer is then patterned to expose the contact pads and selected regions of the silicon to be doped. Doping is then performed, and the whole structure is annealed with a pulsed excimer laser. But laser annealing, unlike standard annealing techniques, does not effect the aluminum contacts because themore » « less
Full Text Available
Real-time data acquisition and telemetry based irrigation control system

Patent Slater, John M.; Svoboda, John M.

A data acquisition and telemetry based control system for use in facilitating substantially real time management of an agricultural irrigation system. The soil moisture sensor includes a reader and a plurality of probes. The probes each include an electronic circuit having a moisture sensing capacitor in operative communication with the soil whose moisture is to be measured. Each probe also includes a receive/transmit antenna and the reader includes a transmit/receive antenna, so that as the reader passes near the probe, the reader transmits a digital excitation signal to the electronic circuit of the biodegradable probe via an inductive couple formedmore » « less
Full Text Available
Acoustic sensor for real-time control for the inductive heating process

Patent Kelley, John Bruce; Lu, Wei-Yang; Zutavern, Fred J.

Disclosed is a system and method for providing closed-loop control of the heating of a workpiece by an induction heating machine, including generating an acoustic wave in the workpiece with a pulsed laser; optically measuring displacements of the surface of the workpiece in response to the acoustic wave; calculating a sub-surface material property by analyzing the measured surface displacements; creating an error signal by comparing an attribute of the calculated sub-surface material properties with a desired attribute; and reducing the error signal below an acceptable limit by adjusting, in real-time, as often as necessary, the operation of the inductive heatingmore » machine. « less
Full Text Available

Similar Records