Patent ID: 8489241

Claim:
A method of controlling a waste combustion process, comprising: a) providing a plurality of data sets each including operational values of a number of operational parameters (u 2 , u 3 , x GC , x LL , w 0 ) of the combustion process and of a corresponding value of a steam flow ({dot over (m)} steam ) generated by the combustion process wherein: u 2 =primary air (mass, temperature) X GC =flame (Gas Cloud) temperature u 3 =secondary air (mass, temperature) X LL =waste (Lower Layer Combustion Zone) temperature; W 0 =waste feed rate; b) evaluating said plurality of data sets and deriving a relation between the steam flow ({dot over (m)} steam ) and the operational parameters (u 2 , u 3 , x GC , x LL , w 0 ); c) using a microprocessor coupled to a memory for solving, given a desired steam flow set point ({dot over (M)} steam ), said relation for a control value of the waste feed rate (w 0 ); and d) applying said control value to a waste feed actuator of the combustion process, wherein the evaluating includes: deriving values of a number of regression coefficients (θ i ) for multiplication in a polynomial relation of a form m . steam = ∑ i N ′ ⁢ φ i ⁡ ( u 2 , u 3 , x LL , x GC , w 0 ) · θ i , with a number of steam contributions (φ i ) depending on the operational parameters (u 2 , u 3 , x LL , x GC , w 0 ).