Finally: A Reliable, On-Line Carbon-in-Ash Analyzer

2004 ◽  
Author(s):  
J. J. Letcavits ◽  
Hans Conrads ◽  
Ed Shelton ◽  
Todd Sommer
Keyword(s):  
Quality Control ◽  
Fly Ash ◽  
Reliable Data ◽  
Unburned Carbon ◽  
Loss On Ignition ◽  
Representative Sampling ◽  
Line Measurement ◽  
On Line ◽  
Line Technology ◽  
Control Regime

The paper describes the principle features necessary for reliable and representative on-line unburned carbon-in-ash (UBC) measurement. The paper shows how modern on-line technology has been applied to obtain truly representative and reliable data for the evaluation of fly ash quality and boiler performance. To assure accurate UBC data from which to make operating decisions, one must achieve representative sampling in the ash stream, comparability of unburned carbon to loss-on-ignition (LOI) with various fuel types, a quality control regime to ensure the accuracy of the on-line measurement system in comparison with laboratory standards and auditing of the QC process.

Characterization of the coal fly ash for the purpose of improvement of industrial on-line measurement of unburned carbon content

Fuel ◽  
2004 ◽  
Vol 83 (13) ◽  
pp. 1847-1853 ◽  
Author(s):  
Katarzyna Styszko-Grochowiak ◽  
Janusz Gołaś ◽  
Henryk Jankowski ◽  
Stanisław Koziński
Keyword(s):  
Fly Ash ◽  
Carbon Content ◽  
Coal Fly Ash ◽  
Unburned Carbon ◽  
Line Measurement ◽  
On Line

Characterization of Fly Ash Laser-Induced Plasma for Improving the On-line Measurement of Unburned Carbon in Gas–Solid Flow

2017 ◽  
Vol 31 (5) ◽  
pp. 4681-4686 ◽  
Author(s):  
Shunchun Yao ◽  
Jialong Xu ◽  
Jingbo Zhao ◽  
Kaijie Bai ◽  
Jidong Lu ◽  
...  
Keyword(s):  
Fly Ash ◽  
Unburned Carbon ◽  
Solid Flow ◽  
Laser Induced Plasma ◽  
Line Measurement ◽  
On Line

On-Line Liquid and Gas Density Measurement-Advantages of Frequency Domain Transducers

1968 ◽  
Vol 1 (1) ◽  
pp. 14-15 ◽  
Author(s):  
J. Agar
Keyword(s):  
Quality Control ◽  
Frequency Domain ◽  
Gas Flow ◽  
Density Measurement ◽  
Control Applications ◽  
Gas Density ◽  
Flow Metering ◽  
Line Measurement ◽  
Transmission Of Information ◽  
On Line

This paper discusses the advantages of frequency modulated transmission of information in plants, and how this philosophy is adapted in practice in the form of two instruments for on-line measurement of liquid and gas densities. The importance of measuring density is well appreciated for on-line blending and various forms of quality control applications, but special attention is drawn to its necessity in gas flow metering.

Optical sensor system for the on-line measurement of carbon in fly-ash

1998 ◽  
Vol 67 (1-3) ◽  
pp. 24-31 ◽  
Author(s):  
A. Schneider ◽  
R. Chabicovsky ◽  
A. Aumüller
Keyword(s):  
Fly Ash ◽  
Optical Sensor ◽  
Sensor System ◽  
Line Measurement ◽  
On Line

scholarly journals Production of fertiliser from wood ash

2019 ◽  
pp. 235-237
Author(s):  
Sirkku Holmberg ◽  
Tommy Claesson
Keyword(s):  
Nutrient Recycling ◽  
Nutrient Content ◽  
Wood Ash ◽  
Unburned Carbon ◽  
Central Heating ◽  
Manufacture Process ◽  
Line Measurement ◽  
Metal Levels ◽  
On Line ◽  
Continuous Manufacture

In 1995, at the central heating plant of Kalmar, Draken, a project aiming to manufacture a granular ash product for nutrient recycling to forest soils instead of depositing it in landfills was started. Prototype equipment for granule manufacturing was developed and built by Kalmar Energi & Miljö in co-operation with Kalmar University College. Production of fertiliser from wood ash comprises aspects of technology, ecology and economy. The composition of granules mostly complies with the requirements of The National Swedish Board of Forestry for nutrient content and heavy metal levels. When constructing an automatic and continuous manufacture process, the on-line measurement of percentage of unburned carbon present in the wood ash is most important for the overall granule properties. Granulation is a more expensive method of treating ash, but granulated ashes give very slow ecological effects and could make ash recycling more acceptable in ecologically sensitive areas.

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