Furnace inside state estimation control apparatus of pulverized coal combustion furnace
US5764535A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Nov 6, 1996 |
| Grant date | Jun 9, 1998 |
| Priority date | — |
| Expiry date | Nov 6, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23N2239/02
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.