Premixed duct burner

a duct burner and premix technology, applied in the direction of incinerator equipment, combustion types, lighting and heating equipment, etc., can solve the problems of high nox emissions, low pressure loss, and limit the amount of turbine exhaust that can interact with supplemental fuel
US20070190473A1Inactive Publication Date: 2007-08-16ALZETA
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
ALZETA
Publication Date
2007-08-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

A fully premixed duct burner is provided that receives exhaust gas from a power generating device, such as a gas turbine or reciprocating engine. The burner may include a burner surface adapted to combust the mixture on or above the surface in blue-flame mode. Substantially all exhaust gas passes through the burner with the exception of some small fraction of exhaust gas that passes through cooling holes or slots. The burner assembly can also include an array of burner modules that receive substantially all of the exhaust gas and fully premixes the exhaust gas with burner fuel prior to combusting the mixture on or above an array of burner surfaces.
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Description

FIELD OF THE INVENTION

[0001] This invention generally relates to a premixed duct burner and more particularly, to a premixed duct burner for use with gas turbines or reciprocating engines, which has high thermal efficiency and low NOx emissions. BACKGROUND OF THE INVENTION

[0002] Power generating devices, such as gas turbines and reciprocating engines, can be implemented to meet the power requirements of industrial and commercial users. In these types of applications, heat recovery is a desirable goal. Heat recovery is commonly achieved through steam generation and may accomplished by passing hot exhaust gasses generated by a device, such as turbine exhaust gas (TEG), through a waste heat boiler or heat recovery steam generator (HRSG). In the simplest systems, there is no supplemental fuel added to the exhaust. These combined power generation and heat recovery systems are known as “combined heat and power” (CHP) systems.

[0003] Improved operating flexibility, higher thermal efficie...

Claims

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