Combustion Analysis in Coal-Fired Power Plants
Optimize fuel usage to maximize production & minimize costs in power plants
Maintain Safe Operation with Efficient Controls
Efficient steam generation is essential for maximum energy output in any power plant. Combustion efficiency is often measured by monitoring the percentage of oxygen in flue gas. Optimizing the air to fuel ratio in a power plant’s combustion process ensures that the process heater is operating at safe conditions (not fuel-rich) to prevent potentially explosive environments. An ideal air to fuel ratio also ensures optimized combustion to maximize heat output from the process heater and minimal fuel usage to save money. It also provides the best oxygen levels to minimize nitrogen oxide (NOx) emissions.
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Product Solutions
The Rosemount 6888C In Situ Oxygen Analyzer helps optimize boilers and fired heaters located in hazardous areas. The calibration equipment is simplified in hazardous areas with the approved integrated automatic calibration housing option. Maintenance costs are reduced with the redesigned modular diffuser and process flame arrestor assembly.
- Features industry-leading accuracy of ±0.75% of reading or ±0.05% O2, whichever is greater
- Digital communication HART® 5 and FOUNDATION™ Fieldbus protocols available to suit a wide range of applications
- Optional Xi Electronics include a local operator interface (LOI), a large, backlit LCD display and advanced software features
Response Time
Up to 8 sec T90
Process Temperature Range
Up to 1300 °F (705 °C) or 1922 °F (1050 °C) with optional bypass and jacket
Ambient Temperature
-40 to 158 °F (-40 to 70 °C)
The Rosemount 6888A In Situ Oxygen Analyzer helps optimize any industrial or large commercial boiler, fired heater or kiln by analyzing the oxygen within the flue gas. As part of an oxygen trim system, the Rosemount 6888A analyzer helps improve plant efficiency and lower energy costs. It's simple to install, commission and operate. The sensor, diffusers, and accessories were developed to provide the greatest performance and longevity even in the harshest of process conditions.
- Features industry-leading accuracy of ±0.75% of reading or ±0.05% O2, whichever is greater
- Digital communication HART® 5 and FOUNDATION™ Fieldbus protocols available to suit a wide range of applications
- Optional Xi Electronics include a local operator interface (LOI), a large, backlit LCD display and advanced software features
Response Time
Up to 8 sec T90
Process Temperature Range
Up to 1300 °F (705 °C) or 1922 °F (1050 °C) with optional bypass and jacket
Ambient Temperature
-40 to 158 °F (-40 to 70 °C)
The Rosemount OCX8800 Oxygen & Combustibles Analyzer provides a continuous, accurate measurement of the oxygen and combustibles remaining in flue gases from a combustion process. The time-tested and world renowned zirconium oxide sensor is the basis for the oxygen measurement. This, coupled with the combustibles sensor can detect oxygen and combustibles concentrations in flue gases with temperatures up to 2600°F (1427°C).
- Oxygen and combustibles measurements in a single, easy-to-install transmitter design
- Field-replacable sensors
- HART®, FOUNDATION® fieldbus and AMS/PlantWeb® compatible
Response Time
Oxygen: Up to 10 sec T90
Combustibles: Up to 25 sec T90
Combustibles: Up to 25 sec T90
Process Temperature Range
Up to 2600 °F (1427 °C)
Ambient Temperature
-40 to 212 °F (-40 to 100 °C)
The Rosemount OCX8800 Oxygen & Combustibles Analyzer for Hazardous Areas provides a continuous, accurate measurement of the oxygen and combustibles remaining in flue gases from the combustion process in hazardous areas. The time-tested and world renowned zirconium oxide sensor is the basis for the oxygen measurement. This, coupled with the combustibles sensor can detect oxygen and combustibles concentrations in flue gases with temperatures up to 2600°F (1427°C).
- Oxygen and combustibles measurements in a single, easy-to-install transmitter design
- Field-replacable sensors
- HART®, FOUNDATION® fieldbus and AMS/PlantWeb® compatible
Response Time
Oxygen: Up to 10 sec T90
Combustibles: Up to 25 sec T90
Combustibles: Up to 25 sec T90
Process Temperature Range
Up to 2600 °F (1427 °C)
Ambient Temperature
-40 to 212 °F (-40 to 100 °C)
The Rosemount Oxymitter 4000 In Situ Oxygen Analyzer for hazardous areas is the world's first in situ, zirconium oxide-based oxygen transmitter for flue gas measurement with an explosion-proof rating. The in situ oxygen analyzer operates at process temperatures up to 700 °C (1300 °F), providing a fast response with high accuracy and reliability. Plus, the oxygen analyzer is fully field-repairable.
- Outstanding accuracy
- Electronics mounted to probe or separate
- Optional Xi advanced electronics
Response Time
Up to 8 sec T90
Process Temperature Range
Up to 1300 °F (705 °C) or 1922 °F (1050 °C) with optional bypass and jacket
Ambient Temperature
-40 to 176 °F (-40 to 80 °C)
