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COAL COMBUSTION BASELINE TESTING

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MEASURING PRIMARY AIR FLOW

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Balancing air flows to all burners in a Coal Fired Boiler is the best way to improve combustion with minimum investment.

EQUIPMENT We use state of the art Dirty Air Pitot with a hand held recorder that averages readings providing very accurate measurement.

PROCEDURE If the ports are not installed, we provide the installation using 1½�, full port valves. These ports can be used for air flow as well as Coal flow measurements.

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MEASURING COAL FLOW

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A two man team is used to obtain the coal samples. One supervises the probe, while the other enters data on the PLC and runs the test.

M&W ASKETEKNIK Is the Manufacturer of the PFS-A-SL AUTOMATIC PULVERIZED FUEL SAMPLER. This PLC controlled testing assures isokinetic flow testing with in-site weighing and automatic coal flow calculation .

With a multiple nozzle sampler and a computer controlled electric actuator we provide testing according to ISO-9931.

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VERIFYING SECONDARY AIR FLOWS

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EXPERIENCE We have provided burner secondary air flow measurements, finding flow distortions caused by uneven air distribution within the air box.

EQUIPMENT

PROCEDURE This highly accurate anemometer provides velocity readings with an accuracy of Âą 3 % which allows for very clear determination of flow variations around the burner secondary air register. By graphing the velocities at 24 points it becomes clear where disturbances are present.

TYPICAL COAL BURNER

VELOCITY PROFILE

Secondary Air Anemometer

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GATHERING EMISSIONS

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We design manufacture and install the necessary test ports to get a complete traverse grid across the duct. This multiple point sampling allows for a very precise measurement of the emissions generated by each burner.

EQUIPMENT We use the Testo 350-S which allows simultaneous in-site monitory of NOx, CO, O2 and CO2 .

RESULTS

NOx [PPM] - 100% LOAD 820 801

800

780

760 759 751

NOx [PPM]

760 740 720

758 755

716 698

700

LEVEL A LEVEL B

680

LEVEL C

660 640

622

620 600 1

2 Sampling points

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The graph to the left represents the variations of NOx across a duct with a nine point sampling grid. It is very evident that one point sampling would NOT have being representative of the NOx levels present in most of the duct.

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OUR MISION To provide efficiency improvement solutions to Coal Fired Power Plants in Central and South America, incorporating well proven Sate of the Art technologies.

PRODUCTS

Coal burner upgrades to reduce NOx.

Classifier upgrades to improve fineness.

Venturi flowmeter to measure primary air.

New classifiers with state of the art technology.

Emissions monitoring equipment.

Continue furnace video monitoring.

 Infrared FEGT monitoring.

SERVICES

 

Combustion baseline testing.

Coal pipes flow measurement for classifier upgrades and wind box flow balancing.

Sampling gas emissions in coal fire power plants.

Seminars in Spanish, on all the products and services offered by SCF.

Primary air flow measurement for CFD Modeling of Burners and OFA.

CONTACTS USA Miguel Gonzalez, (312) - 965 63 14 Email: miguelgonzalez@valvexport.com Jaime Gonzalez, (305) - 359 59 63 Email: jaimegonzalez@valvexport.com CONTACTS COLOMBIA Jaime Gonzalez (+57) 310 688 41 36

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Coal Combustion Testing