Siemens LMV52.440B1 - Control Parameters of the Load Controller

LMVSeriesTechnicalInstructions 
DocumentNo.LV5‐1000
SCCInc. Page13 Section6




Figure6‐5:ExampleofTypicalLambdaFactorsforO
2
ControlCurvesinFigure6‐4(above)

TheLambdaFactorcurvesserveasatooltoevaluatehowaccurateandrepeatablethefundamental
mechanicalsystemsoftheburnerareandhowwellallthecurveswerecommissioned.Ingeneral,the
LambdaFactorcurveshouldbeasconstantor"flat"aspossible.Theactualnumericalvalueisnot
important,buttheconsistencybetweenpointsis.Anapproximateguidefor
evaluationoftheLambda
Factor:

 DifferenceinLambdaFactorbetweenadjacentpoints‐>lowernumbersarebetter.Max=0.35
(HighernumbersmayleadtoO
2
trimdeactivationsonsomeburnersduringmodulation).
 StandardDeviationofallpointsonthecurve‐>lowernumbersarebetter.Max=0.30(Higher
numbersmayleadtoO
2
trimdeactivationsonsomeburnersduringmodulation). 

HOME