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

2. Moisture Measurement BV 2 Who is INADCO Developer and producer of measuring-equipment for measuring the physical properties of Bulkmedia like woodchips, straw, miscanthus. - Bulkdensity - Mass - Volume - Moisturecontent

3. Moisture Measurement BV 3 Measuring during process Moisture = ???? %

4. Moisture Measurement BV 4 Most known methods of measuring moisture Drying StoveMicrowave CapacitiveNear Infra Red

5. Moisture Measurement BV 5 Inline Sensoren 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 - € 1.000,00 Price range: € 3.500,00 - € 6.500,00 Price range: € 12.000,00 - € 30.000,00 Near Infra Red

6. Moisture Measurement BV Quality of measurement with different technologies 6

7. Moisture Measurement BV 7 Influence of Bulkdensity with High Frequency methods sensor Higher compression = more moisture particles per volume

8. Moisture Measurement BV Reliability of the measurement Weight 50.11 kg Weight 49.88 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 8

9. Moisture Measurement BV Reference measurement. With the drying stove? Moisturecontent ??? Result: Moisturecontent = 45% Drying at 103 °C for 24h (EN14774-1:2009) 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 9

10. Moisture Measurement BV Reliability of the measurement STEMBRANCH 10

11. Moisture Measurement BV 3 days drying at 60 °C Temperature at 110 °C + 2.2% Evaporation of water and ….. Moisture [%] Temperature [°C] 11

12. Moisture Measurement BV Sample deviation against average from Dryingstove 12

13. Moisture Measurement BV 13 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

14. Moisture Measurement BV 14 The INADCO Method in action This video can be seen at: www.inadco.nl/taal/nederlands/video.htmwww.inadco.nl/taal/nederlands/video.htm

15. Moisture Measurement BV 15 Other measuring-layouts Measuring in a funnelMeasuring through a belt

16. Moisture Measurement BV 16 Validation

17. Moisture Measurement BV Thank you for your interest and attention. For more questions or comments you can visit us at booth I-2. INADCO Meerheide 18 5521 DZ Eersel The Netherlands Phone: +31 (0) 497-517291 Fax: +31 (0) 497-517469 E-mail: info@inadco.nl Web: www.inadco.nl 17