INADCO develops and produces equipment for measuring moisture content in bulk solids. Their technology eliminates the need for calibration and achieves high accuracy and reproducibility. Their core business includes measuring properties like bulk density, mass, volume, and moisture content of materials like woodchips and straw. Common moisture measurement methods include drying ovens, microwaves, capacitive sensors, and near infrared, each with benefits and disadvantages. INADCO's method uses electrodes in a measuring cylinder to analyze a thick shell of product, validating measurements against standard drying oven tests.

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Challenges in determination the
Moisturecontent of woody biomass

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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.

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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

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

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Measuring during process
Moisture = ???? %

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Most known methods of measuring moisture
Drying StoveMicrowave
Capacitive Near Infra Red

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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 - € 1.000,00
Price range:
€ 3.500,00 - € 6.500,00
Price range:
€ 12.000,00 - € 30.000,00
Near Infra Red

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Quality of measurement with different technologies

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

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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
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Reliability of the measurement data
The same person is measured twice

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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
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Reference measurement. With the drying stove?

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STEM BRANCH
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Reliability of the measurement

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

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Sample deviation against average from a Drying-stove

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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

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

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Other measuring-layouts
Measuring in a funnel Measuring through a belt

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Validation

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Thank you for your interest and attention.
For any questions or comments you
can always contact us.
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