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US 5,983,622 AGranted
Diffusion flame combustor with premixing fuel and steam method and system
AssigneeSiemens Westinghouse Power Corporation
InventorsDonald Maurice Newburry, Douglas Dean Darling
Life of this patent
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Abstract
A method and system for combusting a liquid fuel stream in a diffusion flame combustor by spraying the liquid fuel stream into a steam flow to produce a fuel/steam flow with atomized liquid fuel therein. The fuel/steam flow is further mixed before being combusted in the diffusion flame combustor to produce at least a first portion of an emission stream therefrom.
Claims16
A method of combusting a liquid fuel stream in a combustor comprising the steps of:
- a) spraying the liquid fuel stream into a steam flow with an atomizing means for atomizing the fuel stream to produce a fuel/steam flow;
- b) mixing said fuel/steam flow;
- c) combusting said fuel/steam flow in the combustor to produce at least a first portion of an emission stream;
- d) monitoring a characteristic of a component of the emission stream and providing a representative output measurement;
- e) comparing the measurement against a predetermined standard and identifying any variance;
- and
- f) adjusting the ratio of the fuel/steam flow to reduce the variance.
4 more elements
A system for combusting fuel comprising:
- a) a fuel line;
- b) a steam line with an outlet connected to a first inlet of a combustor located up-stream of a combustion zone therein, wherein said combustor further comprises an emission stream outlet;
- c) atomizer means for receiving fuel from said fuel line and spraying said fuel into said steam line;
- and
- d) control means for controlling a flow of fuel through said fuel line and controlling a flow of steam through said steam line in response to a signal characteristic of a component of an emission stream which is a product of the combustor and exists through the emission stream outlet.
2 more elements
Dependencies are inferred from the claim text.