Moisture Measurement 1 Challenges in determination the Moisturecontent of woody biomass.

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Presentation transcript:

Moisture Measurement 1 Challenges in determination the Moisturecontent of woody biomass

Moisture Measurement 2 Company profile INADCO Moisture Measurement develops and produces measuring equipment for inline and online measuring in processes with fine and coarse bulk solids. Our specialty is the measurement of the moisture content of those bulk solids with our own unique technology, which eliminates the need the use of numerous calibration lines for each change in the product. Further we have equipment for the determination of the bulk density during the process and the weighing of product streams with a low bulk density (60 g/l – 1500 g/l) with a Beltweigher. Because we are the developer and the manufacturer of our equipment we can, if necessary, adapt the our equipment to suit your process circumstances. Our moisture meters achieve a very high reproducibility and accuracy which is better than any other system in the measurement in inhomogeneous bulk solids. The measuring range goes from 0,1 percent up to 60 percent. With years of experience from a wide variety of industries and started in the potting soil industry, INADCO is now more expanding to other industries based on their experience with many products like biomass, animal feed, sand and clay, seeds, salt, glass powder and more.

Moisture Measurement 3 Facilities Head office Includes an office space, laboratory, development department and a production and testing area Assembly and test area Each unit undergoes an endurance test before leaving the factory Development Basically every system we create is with SIEMENS equipment and will be drawn 3D

Moisture Measurement 4 Core business of INADCO Measuring the physical properties of Bulkmedia like woodchips, straw, miscanthus. - Bulkdensity - Mass - Volume - Moisturecontent

Moisture Measurement 5 Measuring during process Moisture = ???? %

Moisture Measurement 6 Most known methods of measuring moisture Drying StoveMicrowave CapacitiveNear Infra Red

Moisture Measurement 7 Inline Sensors Benefits: - Contactless - Fast - More properties Disadvantages: - Measures only surfaces - Sensitive for environments - Expensive MicrowaveCapacitive Benefits: - Simple - Easy to handle - Low cost Benefits: - Simple - Easy to integrate - Reasonable price Disadvantages: - Inaccurate - Not usable in product with a lot of air inclusions - Not usable in product with hard particles Disadvantages: -Small surface - Not usable in product with a lot of air inclusions - Not usable in product with changing bulkdensìty Price range: 500, ,00 Price range: 3.500, ,00 Price range: , ,00 Near Infra Red

Moisture Measurement 8 Quality of measurement with different technologies

Moisture Measurement 9 Influence of Bulkdensity with High Frequency methods sensor Higher compression = more moisture particles per volume

Moisture Measurement Weight kg Weight kg Why? * The real weight of this person is 75 kg How accurate is this scale? Is this a reliable weighing scale? * 0.23 kg ? * NO !!! Conclusion Two digits behind the decimal point does not always mean that the value is true 10 Reliability of the measurement data The same person is measured twice

Moisture Measurement Moisturecontent ??? Result: Moisturecontent = 45% Drying at 103 °C for 24h (EN :2009) Could be! Conclusion There are more extractables in wood than just water which will vaporize at 103 °C like oils and resins. The real amount of water is thus <45%. 1 day in a drum of petrol The wooden block was pretreated 11 Reference measurement. With the drying stove?

Moisture Measurement STEMBRANCH 12 Reliability of the measurement

Moisture Measurement 3 days drying at 60 °CTemperature at 110 °C + 2.2% Moisture [%] Temperature [°C] 13 Evaporation of water and …..

Moisture Measurement 14 Sample deviation against average from a Drying-stove

Moisture Measurement 15 The INADCO Method The measuring electrode in the wall of the measuring cylinder measure a large thick shell of product on the inner side of the cylinder

Moisture Measurement 16 The INADCO Method in action This video can be seen at:

Moisture Measurement 17 Other measuring-layouts Measuring in a funnelMeasuring through a belt

Moisture Measurement 18 Validation

Moisture Measurement 19 Thank you for your interest and attention. For any questions or comments you can always contact us. INADCO Meerheide DZ Eersel The Netherlands Phone: +31 (0) Fax: +31 (0) Web: