German-based Krombacher Brewery was looking for a suitable measuring technology for its auxiliary and supply processes that would allow it to implement an internal energy balancing solution. This is important for determining the leading power consumers through the entire brewing process. By correctly positioning the measuring points, usage and thus cost can be allocated to individual portions or segments.
There were a total of 26 measuring points to be equipped. At each point, either warm or hot water, steam or compressed air was to be measured. In the past, these commodities were supplied without exact knowledge as to where and in what quantity they would be required. That made it easy to reduce costs by monitoring the networks and adapting the outputs to actual consumption rates.
The contract was awarded to Krohne as their measuring devices revealed the smallest measuring inaccuracies according to an internal company comparison. In addition, all of the measuring equipment that could be supplied came from one source. For hot water measurement, UFM 3030 ultrasonic flowmeters with paired calibrated temperature sensors connected directly to the signal converter of the measuring device were provided. This allows the UFM 3030 to directly output the heat quantity on-site without any additional heat quantity calculator or the related wiring costs being required.
The Optiswirl 4070 vortex flowmeter was selected for steam and compressed air measurements. It features integrated pressure and temperature measurement as well as a correction calculator. This excludes the possibility of distorted measuring results when the density of the medium changes as a result of pressure or temperature fluctuations and the wiring for additional sensors is no longer necessary. Comparatively small diameters DN 50 were sufficient for compressed air measurements whereas Optiswirl 4070 devices in the nominal size DN 300 were installed for the steam lines.
With the newly installed Krohne measuring equipment, the Krombacher Brewery can optimally monitor and control its auxiliary and supply processes. Usage profiles can be created for individual components, enabling the quantity of the particular medium supplied to be controlled according to demand.
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