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Title: Real-time combustion controller

A method and system are disclosed for 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. 20 figs.
Inventors:
; ; ; ;
Issue Date:
OSTI Identifier:
434839
Assignee:
Mississippi State Univ., Mississippi State, MS (United States) CHO; SCA: 421000; PA: EDB-97:036005; SN: 97001726607
Patent Number(s):
US 5,599,179/A/
Application Number:
PAN: 8-283,795
Contract Number:
FG02-93CH10575
Resource Relation:
Other Information: PBD: 4 Feb 1997
Research Org:
Mississippi State University
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; FUEL-AIR RATIO; COMBUSTION CONTROL; CARBON MONOXIDE; CARBON DIOXIDE; WATER VAPOR; MONITORING; FUEL INJECTION SYSTEMS; ON-LINE MEASUREMENT SYSTEMS