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Wood chip moisture measurement

The trend towards climate-friendly district heating is unbroken.

The heating plant covers 70% of the heating requirements of the municipality of Weiz - corresponding amounts of renewable fuel are burned every day. At peak times, the system heats 800.000 liters of water per hour. Only high-quality wood chips are used - supplied by farmers and sawmills in the region. 

Since Fernwärme Weiz GmbH started using the professional humimeter BMA moisture meter to measure the moisture content of wood chips, a lot has changed - for the better. We met Managing Director Gerhard Hierz and Operations Manager Harald Meisl for a chat:

Interview with

Ing. Gerhard Hierz

Fernwärme Weiz Managing Director

Harold Meisl

District heating Weiz operations manager

Question

You have been using the humimeter BMA moisture meter to determine the water content of your wood chips for around 5 years. How has this changed the efficiency of the system?

Ing. Gerhard Hierz

Since we have been measuring the water content of the material with every delivery of wood chips, the quality of the fuel has improved significantly. The use of high-quality material also increased the efficiency of the system. Higher-quality fuel also means less and less susceptibility to faults and promotes a smooth process. 

Harold Meisl

Not to be forgotten is the reduction in ash accumulation thanks to higher-quality raw materials. We are now at an extremely low value of 1,3% ash content. This saves costs for ash disposal and of course our environment also benefits from it!

Question

What do the suppliers say about the standardized wood chip moisture measurement?

Harold Meisl

Our suppliers recognize the added value of moisture measurement very well. The business relationship is thus transparent and fair. Many of the delivering farmers are given an incentive and set themselves the goal of increasing the quality of their wood chips - of course, in the knowledge that this will also result in a better price being paid.

Ing. Gerhard Hierz

We have also observed that the visual impression of beautiful and clean wood chips can be deceptive. Only the exact moisture measurement with the tamper-proof humimeter BMA measuring device provides information about the actual quality! Our suppliers appreciate this fair, objective assessment and mutual trust is strengthened as a result.

Question

How helpful is the device display of bulk density and ATRO ton/m³ for you?

Ing. Gerhard Hierz

This value is indispensable for us! We don't have a weighbridge and we use this value to define our quality. The ATRO bin is ideal for comparing and calculating.

QUESTION

The humimeter BMA moisture meter has been in daily use for almost 5 years. How satisfied are you with it?

Harold Meisl

Extremely satisfied - it works! (smiles contentedly) The application is really easy and very user-friendly. 

Question

Finally, one more important question. How do you experience the cooperation with Schaller Messtechnik?

Ing. Gerhard Hierz & Harald Meisl

It works! (both laugh) We are really satisfied and particularly appreciate the strong spirit of innovation. We are always happy to be partners in the development of technical innovations. The professional and practical exchange creates a win-win situation - we thank you very much for the good cooperation!

Thank you for the talk!

Employees of Fernwärme Weiz at the PC in the test bench

The exact moisture measurement of the wood chips leads to higher quality and thus inevitably to a significantly increased efficiency of the system!

Ing. Gerhard Hierz, Management, Fernwärme Weiz GmbH
Facts and figures:

District heating Weiz GmbH

  • 3 independent biomass plants in Weiz
  • Covering 70% of the heating requirements of the city of Weiz
  • Total boiler output: ≈ 40 MW
  • 100% biogenic fuels – mostly from within a radius of 20 km
  • Daily delivery of wood chips

High-end Schaller moisture meters

available at schaller-meters.com

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