Furnace inside state estimation control apparatus of pulverized

Details Furnace inside state estimation control apparatus of pulverized Furnace inside state estimation control apparatus of pulverized

1996-11-06

1998-06-09

Trammell, James P.

Boots, shoes, and leggings

364500, 364578, F23N 500

Patent

active

057645353

ABSTRACT:
When at least one of a distribution of gas composition and distribution of temperature inside a furnace is estimated by dividing the region inside the furnace into two-dimensional or three-dimensional cells, and calculating a gas flow rate, a gas reaction amount, a coal combustion rate, a radiant heat transfer rate in each of the cells, based on design data including furnace dimentions and operational data including a coal supply rate and an air supply rate, an air ratio of gas phase--gas composion table is referred to, thereby to simplify the gas reaction amount calculation and reduce drastically time required for the calculation.

REFERENCES:
patent: 4622922 (1986-11-01), Miyagaki et al.
patent: 4976780 (1990-12-01), Amano et al.
patent: 5623425 (1997-04-01), Yoda
Sidlauska et al., "Mathematical Modeling of the Thermal Process in Industrial Combustion Chambers" Heat Transfer-Soviet Research v.23 n.7 pp. 897-914, 1991.
Boyd et al., "Three dimensional Furnace Computer Modeling" Proceedings of the 21st Symposium on Combustion, pp. 265-274, 1986.

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