Global Patent Index - EP 1091175 A2

EP 1091175 A2 2001-04-11 - Method and device for determining and for controlling of the excess of air in a combustion process

Title (en)

Method and device for determining and for controlling of the excess of air in a combustion process

Title (de)

Verfahren und Vorrichtung zur Bestimmung sowie zur Regelung des Luftüberschusses bei einem Verbrennungsprozess

Title (fr)

Procédé et dispositif pour déterminer et commander l'excès d'air dans un processus de combustion

Publication

EP 1091175 A2 (DE)

Application

EP 00120859 A

Priority

DE 19948377 A

Abstract (en)

Process for determining and regulating excess air during a combustion process comprises determining the formation rates of cyanide (K(CN)) and carbon monoxide (K(CO)) produced during the combustion and calculating the ratio K(CN)/K(CO) from the formation rates as a parameter representing the excess air. An Independent claim is also included for an apparatus for determining and regulating excess air during a combustion process comprising sensors (2, 3) and data processors (6) for determining the formation rates K(CN) and K(CO) during the combustion, and a device (13) for determining the ratio K(CN)/K(CO) from the formation rates as a parameter representing the excess air. Preferred Features: The formation rates K(CN) and K(CO) are determined using emission spectroscopy form the radiation from the combustion flame.

Abstract (de)

Zur Bestimmung des Luftüberschusses bei einem Verbrennungsprozeß werden Bildungsraten K(CN) und K(CO) der bei der Verbrennung gebildeten Reaktionsprodukte CN und CO ermittelt; anschließend wird das Verhältnis K(CN)/K(CO) als eine den Luftüberschuß repräsentierende Größe ermittelt, die als Regelgröße zur Regelung des Luftüberschusses herangezogen werden kann. <IMAGE>

IPC 1-7 (main, further and additional classification)

F23N 5/00; F23N 5/08

IPC 8 full level (invention and additional information)

F23N 5/00 (2006.01); F23N 5/08 (2006.01); F23N 1/02 (2006.01)

CPC (invention and additional information)

F23N 5/082 (2013.01); F23N 5/003 (2013.01); F23N 1/02 (2013.01); F23N 2029/16 (2013.01)

Citation (applicant)

EP 0612961 A2 19940831 - RWE ENTSORGUNG AG [DE]

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 1091175 A2 20010411; EP 1091175 A3 20030813; EP 1091175 B1 20061102; AT 344423 T 20061115; DE 19948377 C1 20010523; DE 50013683 D1 20061214; DK 1091175 T3 20070122; ES 2272229 T3 20070501; PT 1091175 E 20070228

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