Furnaces – With control means responsive to a sensed condition
Patent
1985-04-23
1986-11-04
Favors, Edward G.
Furnaces
With control means responsive to a sensed condition
110186, 110347, 236 15BA, 431 79, F23M 500
Patent
active
046204911
ABSTRACT:
This invention relates to the supervision of a combustion state of a combustion furnace. A flame formed concentrically with the direction of a fuel jetted from a burner being the center is measured from its side, and two oxidizing flame zones as high luminance zones are extracted. Using the shape parameters of the flame, an index for reducing NOx and unburnt components in ash are calculated and estimated so as to supervise the combustion state. The positions or centroids of the flames and the distance between the centroids are used as the shape parameters, and the flame shape is divided into two zones for easy display of each zone.
REFERENCES:
patent: 3894834 (1975-07-01), Estes
patent: 4039844 (1977-08-01), MacDonald
patent: 4233596 (1980-11-01), Okamoto et al.
patent: 4368031 (1983-01-01), Chadshay
patent: 4435149 (1984-03-01), Astheimer
Higashi Toshihiko
Kurihara Nobuo
Miyagaki Hisanori
Nishikawa Mitsuyo
Sato Yoshio
Favors Edward G.
Hitachi , Ltd.
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