Laser measurement of vapor in 4 MW boiler during

Laser measurement of vapor in 4 MW boiler during

Optical monitoring of KCl vapor in 4 MW CFB boiler during straw …

Optical monitoring of KCl vapor in 4 MW CFB boiler during straw combustion and ferric sulfate injection Tapio Sorvajärvi 1, Joni Maunula2, Jaani Silvennoinen2 and Juha Toivonen 1 Calibration of technique 4.2.2014 6 • Saturation vapor pressures calculated using HSC

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APPENDICES - EPA

40 mmBtu boiler fired with coal Opacity, PM, SO 2 COMS, fuel monitoring. A. 2 99 mmBtu boiler fired with fuel oil Opacity, SO 2 COMS, fuel monitoring. A. 3 50 mmBtu boiler fired with natural gas Opacity, PM Fuel records. A. 4 150 MW stationary turbine NO x

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Technical Note: Using Guided Wave Radar for Level in High Pressure Steam Applications …

should be isolated directly from the boiler or high pressure heater by valves. Probes up to 13.1 ft. (4 m) for the integrated still pipe vapor probe and 9.8 ft. (3 m) long for the rigid single vapor probe are supported for Dynamic Vapor Compensation. Dynamic Vapor

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Laser measurement of KCl vapor in 4 MW CFB boiler …

Laser measurement of KCl vapor in 4 MW CFB boiler during straw combustion and ferric sulfate injection Juha Ilmo Toivonen, Tapio Kalevi Sorvajärvi, Joni Maunula, Jaani Silvennoinen Tutkimustuotos : Conference contribution › Scientific

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Principle, calibration, and application of the in situ alkali …

The measuring range is 1-50 ppm for the sum of KCl and NaCl concentrations and 4-750 ppm for SO(2). This paper describes the principle of the IACM as well as its calibration. Furthermore, an example of its application in an industrial boiler is given.

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Optical monitoring of KCI vapor in 4 MW CFB boiler …

Optical monitoring of KCI vapor in 4 MW CFB boiler during straw combustion and ferric sulfate injection Tapio Kalevi Sorvajärvi (Speaker) Activity: Talk or presentation › Conference presentation Period 2014 Event title VII Liekkipäivä 2014, 30.1.2014, Tampere

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Measurements of Gas Concentrations in a Fluidized Bed …

1/6/1998 · The dynamic combustion behavior of a circulating, fluidized bed boiler (CFB) was studied using two high-speed gas analysis systems during the combustion of coal, peat, and wood chips. Time-resolved concentrations of SO 2 and NO were measured by laser …

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Safety Valves in Heating Systems - Engineering ToolBox

80 to 150. boiler horsepower. Note! Check domestic regulations - Safety Valve Standards. 1 kW = 3412 Btu/h. 1 inch = 25.4 mm. Safety valves should be removed at least once each year for inspection and cleaning of any deposits that might affect their operation. To eliminate the necessity of shutting the system down for the inspection, a three

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Laser measurement of KCl vapor in 4 MW CFB boiler …

title = "Laser measurement of KCl vapor in 4 MW CFB boiler during straw combustion and ferric sulfate injection", author = "Toivonen, {Juha Ilmo} and Sorvaj{"a}rvi, {Tapio Kalevi} and …

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Real-time, in situ, continuous monitoring of CO in a …

21/11/2012 · A 2.3 μm laser absorption-based CO sensor, developed and validated earlier in a laboratory environment, was refined and tested for continuous, real-time, in situ measurement in the boiler exhaust of a 300 MW unit of a pulverized-coal-fired power plant.

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Laser measurement of KCl vapor in 4 MW CFB boiler during straw …

laser measurement technique was applied to monitor the KCl concentration through the flue gas channel of a 4 MW circulating fluidized bed boiler during combustion of straw and wood. The straw composition in the fuel was changed from 0% to 100 %, and ferric sulfate injection was used to control the KCl concentration in the furnace. Chlorine is known to occur mainly in forms of KCl and HCl in the flue gas due to the high content of potassium in straw. The vaporous KCl can be converted to less harmful potassium sulfate and HCl with ferric sulfate injection. Single measurement curves are discussed and the operation of the laser measurement in two longer-term experiments is demonstrated. The laser measurement resulted stable concentration values in steady combustion conditions and followed transients due to the furnace operational changes with time resolution less than a minute. The online laser measurement …

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Optical detection of KCI vapor in 4 MW CFB boiler during …

Optical detection of KCI vapor in 4 MW CFB boiler during straw combustion and ferric sulfate injection Toivonen, J. (Speaker) Activity: Talk or presentation › Conference presentation Period 2013 Event title 6th European Combustion Meeting, June 25-28, 2013

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Smart Sensors for Advanced Combustion Systems

incinerator using a multiplexed-wavelength laser sensor [3], although no effort was made at combustion control. In Japan, Deguchi et al. measured CO and O2 concentration in a waste incinerator [4] and more recently in a coal-fired boiler. However these past

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The Ash Deposition Mechanism in Boilers Burning Zhundong Coal …

from different positions in a 30 MW subcritical boiler. The chemical analysis showed that the ash fouling on the superheater tubes was formed with a thinner Fe-rich layer followed by the deposition of Na 2 SO 4 …

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